Manufacturer and seller images. Configuration examples may include additional equipment.
Image source: EG4 WallMount All Weather 280Ah image published by Signature Solar on its listing for this product. Distributor photo, not a manufacturer-issued image. Paid link.Paid link · price checked
Catalog identity; physical unit/serial revision must still be checked.
Official product page: EG4 WallMount All Weather product page CheckedDocumented
Manufacturer specification.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedDocumented
Total energy at 25 °C and 100% SOC; usable energy is not independently stated.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedLocation: specification table
Documented
Nominal DC voltage.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedDocumented
±2%, 25±2 °C at 0.5C.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedDocumented
Current datasheet and manual agree; separate 200 A allowance lasts 30 minutes.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · Checked Official instruction manual: EG4 14.3 kWh PowerPro WallMount AW manual Rev 1.6.3 · CheckedDocumented
Continuous charge current.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · Checked Official instruction manual: EG4 14.3 kWh PowerPro WallMount AW manual Rev 1.6.3 · CheckedDocumented
Calculated at nominal DC voltage and the recorded continuous current. Actual power varies with voltage, temperature, inverter and operating conditions. This is not a measured sustained-power test.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · Checked Official instruction manual: EG4 14.3 kWh PowerPro WallMount AW manual Rev 1.6.3 · CheckedEstimated
Manufacturer's timed discharge allowance, not an indefinitely continuous rating.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · Checked Official instruction manual: EG4 14.3 kWh PowerPro WallMount AW manual Rev 1.6.3 · CheckedDocumented
6 specs not documented yet: usable energy, round-trip efficiency, maximum parallel units, maximum nominal system energy, software / offline behavior, operating noiseHelp fill in ›
Manufacturer specification.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedDocumented
Total energy at 25 °C and 100% SOC; usable energy is not independently stated.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedLocation: specification table
Documented
Not established in the reviewed documents for this exact model. No value inferred from another SKU.
Not documented
Nominal DC voltage.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedDocumented
±2%, 25±2 °C at 0.5C.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedDocumented
Current datasheet and manual agree; separate 200 A allowance lasts 30 minutes.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · Checked Official instruction manual: EG4 14.3 kWh PowerPro WallMount AW manual Rev 1.6.3 · CheckedDocumented
Continuous charge current.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · Checked Official instruction manual: EG4 14.3 kWh PowerPro WallMount AW manual Rev 1.6.3 · CheckedDocumented
Calculated at nominal DC voltage and the recorded continuous current. Actual power varies with voltage, temperature, inverter and operating conditions. This is not a measured sustained-power test.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · Checked Official instruction manual: EG4 14.3 kWh PowerPro WallMount AW manual Rev 1.6.3 · CheckedEstimated
Manufacturer's timed discharge allowance, not an indefinitely continuous rating.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · Checked Official instruction manual: EG4 14.3 kWh PowerPro WallMount AW manual Rev 1.6.3 · CheckedDocumented
Calculated at nominal DC voltage and the recorded continuous current. Actual power varies with voltage, temperature, inverter and operating conditions. This is not a measured sustained-power test.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · Checked Official instruction manual: EG4 14.3 kWh PowerPro WallMount AW manual Rev 1.6.3 · CheckedEstimated
Printed as "Charging Voltage (Bulk/Absorb) 56.0V (±0.8V) 56.2V (±0.2V)" in the EG4 14.3kWh PowerPro WallMount All Weather manual, module operating parameters (BMS and Recommended Setting columns), captured on September 26, 2026. 56.2 V is the Recommended Setting column.
Official instruction manual: EG4 14.3 kWh PowerPro WallMount AW manual Rev 1.6.3 · CheckedLocation: Module operating parameters
Documented
Printed as "Module Voltage Protection 60V 1 sec 55.2V" in the EG4 14.3kWh PowerPro WallMount All Weather manual, BMS parameters (charge), captured on September 26, 2026. Module over-voltage protection trip, 1 s delay, with its recovery voltage.
Official instruction manual: EG4 14.3 kWh PowerPro WallMount AW manual Rev 1.6.3 · CheckedLocation: BMS parameters, charge
Documented
Printed as "Module Voltage Protection 44.8V 1 sec 48V" in the EG4 14.3kWh PowerPro WallMount All Weather manual, BMS parameters (discharge), captured on September 26, 2026. Module under-voltage protection trip, with its recovery voltage.
Official instruction manual: EG4 14.3 kWh PowerPro WallMount AW manual Rev 1.6.3 · CheckedLocation: BMS parameters, discharge
Documented
Claim is greater than 8,000 at 0.5C and 80% DoD; EOL detail must be checked before cross-product ranking.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedDocumented
51.2 V × 280 Ah × 80% DoD × 8,000 cycles × 90% ÷ 1,000,000 = 82.6 MWh
Official datasheetManufacturer-published lifetime calculation, not measured output or a warranty commitment. Factors are shown as printed; cycle-test conditions are separate.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedDocumented
Published claims and calculations are not independently tested lifetime output.
Not established in the reviewed documents for this exact model. No value inferred from another SKU.
Not documented
Battery listed mass; no shipping pallet.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · Checked Official instruction manual: EG4 14.3 kWh PowerPro WallMount AW manual Rev 1.6.3 · CheckedDocumented
Current external dimensions including side panels; webpage's 880 mm height remains a recorded alternative.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · Checked Official instruction manual: EG4 14.3 kWh PowerPro WallMount AW manual Rev 1.6.3 · CheckedCalculated
Connector feature in datasheet; do not describe the M6 grounding screw or M8 mounting bolts as power terminals.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedLocation: Feature list
Documented
Battery enclosure, not the entire installed system.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedLocation: Environmental parameters
Documented
Protocol availability alone does not establish a listed inverter pairing.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedDocumented
Not established in the reviewed documents for this exact model. No value inferred from another SKU.
Not documented
Not established in the reviewed documents for this exact model. No value inferred from another SKU.
Not documented
224 W heater; on at or below 0 °C, off at or above 5 °C.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedDocumented
Printed as "Storage Range 32°F to ≈113°F (0°C to ≈45°C)" in the EG4 14.3kWh PowerPro WallMount All Weather manual, environmental parameters, captured on September 26, 2026.
Official instruction manual: EG4 14.3 kWh PowerPro WallMount AW manual Rev 1.6.3 · CheckedLocation: Environmental parameters
Documented
Manual features specify integrated 600 A busbars. External busbar and inverter limits still apply.
Official instruction manual: EG4 14.3 kWh PowerPro WallMount AW manual Rev 1.6.3 · CheckedLocation: Features and section 8.2
Documented
Remote initiator and inverter wiring requirements are described in section 9.
Official instruction manual: EG4 14.3 kWh PowerPro WallMount AW manual Rev 1.6.3 · CheckedLocation: Section 9
Documented
Manufacturer description. Fire arrestors are not an independently tested promise to extinguish every battery fire.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedLocation: Feature list
Documented
Published charge operating range; heater behavior is separate.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedDocumented
Published discharge operating range.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedDocumented
Not established in the reviewed documents for this exact model. No value inferred from another SKU.
Not documented
Not established in the reviewed documents for this exact model. No value inferred from another SKU.
Not documented
Published heater draw, separate from continuous battery output. Heater control and external supply conditions apply.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedLocation: Heater specifications
Documented
Printed as "Internal Battery Temperature ≤32°F (0°C) heat on, ≥41°F (5°C) heat off" in the EG4 14.3kWh PowerPro WallMount All Weather manual, battery heater specifications, captured on September 26, 2026.
Official instruction manual: EG4 14.3 kWh PowerPro WallMount AW manual Rev 1.6.3 · CheckedLocation: Battery heater specifications
Documented
Printed as "Internal Battery Temperature ≤32°F (0°C) heat on, ≥41°F (5°C) heat off" in the EG4 14.3kWh PowerPro WallMount All Weather manual, battery heater specifications, captured on September 26, 2026.
Official instruction manual: EG4 14.3 kWh PowerPro WallMount AW manual Rev 1.6.3 · CheckedLocation: Battery heater specifications
Documented
Published claims and calculations, not independent test results.
Issuer record matches the listed WP model aliases. Physical sales-label mapping remains a separate check.
Page 3, Safety certifications · Verified
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · Checked Issuer record & datesDatasheet says Passed. Test report, test level and configuration not independently checked.
Page 3, Safety certifications
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedManufacturer enclosure rating; test evidence not checked.
Page 3, Environmental parameters
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedThe cover and changelog provide no revision date. Copyright year and URL folder are not revision dates.
Location: Cover and changelog, pages 1 and 4
Retrieved
URL folder is not the effective date. Changelog reports earlier changes without preserved old full versions.
SHA-256: 42f254296a7ee4fe82bb01c7c5f0741e92fd939a573b3833630378757310c38e
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedArchived copy of a document published by EG4 Electronics. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what EG4 Electronics published. Original address: https://eg4electronics.com/wp-content/uploads/2024/04/EG4-14.3kWh-PowerPro-WallMount-AW-Spec-Sheet.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 42f254296a7ee4fe82bb01c7c5f0741e92fd939a573b3833630378757310c38e
Version printed; no explicit revision date found.
Location: Cover and final changelog
Retrieved
SHA-256: eda3ee2665ac38da25b9e328df925322b9020b4454d416c5f53ecb72420b4160
Official instruction manual: EG4 14.3 kWh PowerPro WallMount AW manual Rev 1.6.3 · CheckedArchived copy of a document published by EG4 Electronics. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what EG4 Electronics published. Original address: https://eg4electronics.com/wp-content/uploads/2024/04/EG4-14.3kWh-PowerPro-WallMount-AW-Manual.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: eda3ee2665ac38da25b9e328df925322b9020b4454d416c5f53ecb72420b4160
Revision date not established.
Location: Original source record
Retrieved
Indexed terms only; direct web result empty and one raw retry returned 403. Do not substitute another battery's warranty.
Official warranty: EG4 WallMount All Weather warranty page CheckedRevision date not established.
Location: Original source record
Retrieved
Web research rendering available; a later raw request returned 403. Page dimensions differ from current technical documents.
Official product page: EG4 WallMount All Weather product page CheckedEarlier revisions, archived captures and copies published by someone other than the manufacturer. Every one stays reachable.
Document group: datasheet. Attached by exact model or SKU naming in the document text.
Location: Linked from https://eg4electronics.com/categories/batteries/eg4-wallmount-all-weather-battery with the link text "EG4 WallMount All Weather Battery – Spec Sheet (Spanish) v1.2.1"
Retrieved
PDF downloaded from a link published on the manufacturer's own site and preserved byte for byte. It establishes the document that link served on the access date. It is attached only to catalog rows whose exact documented SKU or exact model designation appears in this document's own text, so a document covering several models is attached to exactly those rows.
Archived copy of a document published by EG4 Electronics. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what EG4 Electronics published. Original address: https://eg4electronics.com/wp-content/uploads/2025/02/EG4-WallMount-All-Weather-Battery-Spec-Sheet-Spanish.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: cc5053b1746ca45235006af695499714c4a50653f69ed79f7e41ca530d997dcd
Linked from the Signature Solar product page with link text "none".
Location: EG4-280Ah-AW-Conduit-Box-Quick-Start-Guide.pdf
Retrieved
Original PDF preserved byte for byte, found linked from the Signature Solar listing https://signaturesolar.com/eg4-wallmount-all-weather-lithium-battery-48v-280ah-14-3kwh-lifepo4-all-weather-energy-storage-ul1973-ul9540a-10-year-warranty/. The revision is whatever was published at this URL on the access date; exact variant coverage inside the document was not separately verified and no later revision was checked.
SHA-256: 53bcd09f73a3bdff984ede3df57ce6deba32d3f90dab2b3633a5bb3ff1044ad3
Archived copy of a document published by eg4electronics.com. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what eg4electronics.com published. Original address: https://eg4electronics.com/wp-content/uploads/2024/05/EG4-280Ah-AW-Conduit-Box-Quick-Start-Guide.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 53bcd09f73a3bdff984ede3df57ce6deba32d3f90dab2b3633a5bb3ff1044ad3
A document/effective date is recorded separately; it has not been established as the revision date.
Location: Original source record
Retrieved
Recorded document/effective date: Aug 6, 2025
Report 241126115GZU-001; covers enumerated system model codes, not all compatible combinations.
Official document: FlexBOSS / WallMount ESS UL 9540 certificate of compliance CheckedArchived copy of a document published by EG4 Electronics (Intertek-issued document). Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what EG4 Electronics (Intertek-issued document) published. Original address: https://eg4electronics.com/wp-content/uploads/2025/01/EG4-POWERPRO-FlexBOSS21-WALLMOUNT-ALL-WEATHER-ESS-UL-9540-CERTIFICATE-OF-COMPLIANCE.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: eecf515761aff73db2b868e0bf26b74a506853b7edcaf821a0a98f901b8653cd
Archived copy captured on 2026-11-01.
Location: Key Specifications
Retrieved
EG4's own ESS system page, captured on November 1, 2026 with the paced research fetcher (HTTP 200). Read only for the UL 9540 pairing it prints (Key Specifications); EG4 prints no SKU for the system and the battery count varies, so it is not a product record (PM Tier 3 ruling 2026-11-01 19:30Z). Manufacturer statement, not an independent test.
Archived copy captured on 2026-09-28.
Location: SKU line and Battery Downloads section; Battery Specifications list
Retrieved
BigBattery's product page for the EG4 WallMount 280Ah All Weather battery, captured on September 28, 2026. BigBattery sells this EG4 product; the page prints its own SKU FEWPP-48143-G1 and a Battery Specifications list (51.2V, 14.3kWh, 280Ah, IP65). It is cited only for BigBattery's SKU, not for product figures.
Archived copy of a document published by EG4 Electronics. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what EG4 Electronics published. Original address: https://eg4electronics.com/wp-content/uploads/2024/04/EG4-14.3kWh-PowerPro-WallMount-AW-Spec-Sheet.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 42f254296a7ee4fe82bb01c7c5f0741e92fd939a573b3833630378757310c38e
Archived copy of a document published by EG4 Electronics. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what EG4 Electronics published. Original address: https://eg4electronics.com/wp-content/uploads/2024/04/EG4-14.3kWh-PowerPro-WallMount-AW-Manual.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: eda3ee2665ac38da25b9e328df925322b9020b4454d416c5f53ecb72420b4160
Archived copy of a document published by EG4 Electronics (Intertek-issued document). Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what EG4 Electronics (Intertek-issued document) published. Original address: https://eg4electronics.com/wp-content/uploads/2024/04/EG4%C2%AE-14.3kWh-PowerPro-WallMount-UL1973-Certificate-Of-Compliance.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 7f06161706d35f48e060568c777eeba181fdeb41f2f53731cb3387d7a3eba9c8
Archived copy of a document published by EG4 Electronics (Intertek-issued document). Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what EG4 Electronics (Intertek-issued document) published. Original address: https://eg4electronics.com/wp-content/uploads/2025/01/EG4-POWERPRO-FlexBOSS21-WALLMOUNT-ALL-WEATHER-ESS-UL-9540-CERTIFICATE-OF-COMPLIANCE.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: eecf515761aff73db2b868e0bf26b74a506853b7edcaf821a0a98f901b8653cd
Archived copy of a document published by eg4electronics.com. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what eg4electronics.com published. Original address: https://eg4electronics.com/wp-content/uploads/2024/05/EG4-280Ah-AW-Conduit-Box-Quick-Start-Guide.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 53bcd09f73a3bdff984ede3df57ce6deba32d3f90dab2b3633a5bb3ff1044ad3
Archived copy of a document published by EG4 Electronics. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what EG4 Electronics published. Original address: https://eg4electronics.com/wp-content/uploads/2025/02/EG4-WallMount-All-Weather-Battery-Spec-Sheet-Spanish.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: cc5053b1746ca45235006af695499714c4a50653f69ed79f7e41ca530d997dcd
Indexed terms only.
Official warranty: EG4 WallMount All Weather warranty page CheckedProvisional evidence
Indexed terms; full remedy distinction not retrieved.
Official warranty: EG4 WallMount All Weather warranty page CheckedProvisional evidence
Indexed wording requires full contract reconciliation.
Official warranty: EG4 WallMount All Weather warranty page CheckedProvisional evidence
Ten-year manufacturer headline; full contract, registration, parts and proration conditions remain separate.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · Checked Official warranty: EG4 WallMount All Weather warranty page CheckedLocation: Datasheet warranty feature
Documented
3 terms not documented yet: capacity retention, labor and shipping, warranted throughput limitHelp fill in ›
Affiliate links below. Affiliate disclosure
Checked · End date not published.
Signature Solar promotion terms Paid link.Price for one unit, as listed by the seller. Does not include installation. Price checked .
The seller lists this as a new unit. Condition checked .
Distributor product page: Signature Solar EG4 All Weather 280Ah listing Paid link.Checked Distributor product page: EG4 WallMount All Weather 280Ah price and availability observation Paid link.Checked Distributor product page: EG4 | WallMount All Weather Lithium Battery | 48V 280Ah | 14.3kWh (signaturesolar.com, November 2, 2026 capture) Paid link.Checked · Earlier documentPrice for one unit, as listed by the seller. Price checked .
The seller lists this as a new unit.
Distributor store listing: ShopSolar product listing Paid link.Checked · Earlier documentDistributor store listing: ShopSolar product listing Paid link.Checked · Earlier documentDistributor store listing: ShopSolar product listing Paid link.Checked · Earlier documentDistributor store listing: ShopSolar product listing Paid link.Checked · Earlier documentDistributor store listing: ShopSolar product listing Paid link.Checked · Earlier documentPrice for one unit, as listed by the seller. Does not include tax and shipping. Price checked .
The seller lists this as a new unit. Condition checked .
Distributor product page: BigBattery store catalog row for SKU FEWPP-48143-G1: EG4 WallMount 280Ah All Weather | 48V – 14.3kWh | UL1973 | Home Battery Backup LFP (MiMo capture bigbattery.json, captured 2026-10-27T15:39:27Z) CheckedPrices we read at Signature Solar, ShopSolar and BigBattery · 47 readings from to
Since · Listing price (USD)
A break in a line is a gap in our readings: no price is drawn for days we did not read.
| Checked (UTC) | Seller | Price |
|---|---|---|
| Sep 6, 2026 | Signature Solar Paid link. | $3,124.99 |
| Sep 6, 2026 | Signature Solar Paid link. | $3,124.99 |
| Sep 10, 2026, 10:32 AM PDT | Signature Solar Paid link. | $3,124.99 |
| Sep 10, 2026, 3:06 PM PDT | Signature Solar Paid link. | $3,124.99 |
| Sep 10, 2026, 3:06 PM PDT | Signature Solar Paid link. | $3,124.99 |
| Oct 4, 2026, 2:01 AM PDT | Signature Solar Paid link. | $3,124.99 |
| Oct 4, 2026, 9:30 AM PDT | ShopSolar Paid link. | $3,124.99 |
| Oct 5, 2026, 2:24 AM PDT | Signature Solar Paid link. | $3,124.99 |
| Oct 6, 2026, 2:25 AM PDT | Signature Solar Paid link. | $3,124.99 |
| Oct 7, 2026, 2:15 AM PDT | Signature Solar Paid link. | $3,124.99 |
| Oct 8, 2026, 2:25 AM PDT | Signature Solar Paid link. | $3,124.99 |
| Oct 9, 2026, 2:11 AM PDT | Signature Solar Paid link. | $3,124.99 |
| Oct 14, 2026, 3:31 AM PDT | Signature Solar Paid link. | $3,124.99 |
| Oct 16, 2026, 1:06 AM PDT | ShopSolar Paid link. | $3,124.99 |
| Oct 17, 2026, 4:36 AM PDT | Signature Solar Paid link. | $3,124.99 |
| Oct 18, 2026, 1:06 AM PDT | ShopSolar Paid link. | $3,124.99 |
| Oct 21, 2026, 1:36 AM PDT | ShopSolar Paid link. | $3,124.99 |
| Oct 21, 2026, 4:03 AM PDT | Signature Solar Paid link. | $3,124.99 |
| Oct 22, 2026, 1:16 AM PDT | ShopSolar Paid link. | $3,124.99 |
| Oct 23, 2026, 3:10 AM PDT | ShopSolar Paid link. | $3,124.99 |
| Oct 24, 2026, 1:06 AM PDT | ShopSolar Paid link. | $3,124.99 |
| Oct 26, 2026, 1:07 AM PDT | ShopSolar Paid link. | $3,124.99 |
| Oct 26, 2026, 2:33 AM PDT | Signature Solar Paid link. | $3,124.99 |
| Oct 27, 2026, 1:07 AM PDT | ShopSolar Paid link. | $3,124.99 |
| Oct 27, 2026, 8:39 AM PDT | BigBattery Paid link. | $3,124.99 |
| Oct 27, 2026, 9:15 AM PDT | ShopSolar Paid link. | $3,124.99 |
| Oct 28, 2026, 2:26 AM PDT | Signature Solar Paid link. | $3,124.99 |
| Oct 29, 2026, 1:16 AM PDT | ShopSolar Paid link. | $3,124.99 |
| Oct 29, 2026, 2:52 AM PDT | Signature Solar Paid link. | $3,124.99 |
| Oct 30, 2026, 1:26 AM PDT | ShopSolar Paid link. | $3,124.99 |
| Oct 30, 2026, 2:53 AM PDT | Signature Solar Paid link. | $3,124.99 |
| Oct 31, 2026, 1:27 AM PDT | ShopSolar Paid link. | $3,124.99 |
| Oct 31, 2026, 2:41 AM PDT | Signature Solar Paid link. | $3,124.99 |
| Nov 1, 2026, 1:07 AM PDT | ShopSolar Paid link. | $3,124.99 |
| Nov 1, 2026, 2:41 AM PST | Signature Solar Paid link. | $3,124.99 |
| Nov 2, 2026, 2:55 AM PST | Signature Solar Paid link. | $3,124.99 |
| Nov 2, 2026, 9:15 AM PST | Signature Solar Paid link. | $3,124.99 |
| Nov 3, 2026, 3:22 AM PST | Signature Solar Paid link. | $3,124.99 |
| Nov 4, 2026, 2:20 AM PST | ShopSolar Paid link. | $3,124.99 |
| Nov 4, 2026, 4:32 AM PST | Signature Solar Paid link. | $3,124.99 |
| Nov 5, 2026, 1:06 AM PST | ShopSolar Paid link. | $3,124.99 |
| Nov 6, 2026, 1:07 AM PST | ShopSolar Paid link. | $3,124.99 |
| Nov 6, 2026, 4:22 AM PST | Signature Solar Paid link. | $3,124.99 |
| Nov 7, 2026, 1:17 AM PST | ShopSolar Paid link. | $3,124.99 |
| Nov 8, 2026, 1:16 AM PST | ShopSolar Paid link. | $3,124.99 |
| Nov 9, 2026, 4:24 AM PST | Signature Solar Paid link. | $3,124.99 |
| Nov 12, 2026, 1:26 AM PST | ShopSolar Paid link. | $3,124.99 |
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The Evidence score uses the priorities you choose. It counts published documents, such as certificates and warranty terms, and it compares a documented figure with the best documented figure of the same kind. It does not count owner reviews, and it is not a verdict on product quality or on how many people have reviewed it. A low score can mean little is documented, or that a documented figure is below the best of its kind. Undisclosed data scores 0.
Missing for this product: Warranty energy disclosure evidence needed; Cell model disclosure evidence needed.
48 V · Wall / floor · Rated capacity
The warranty term and the lifetime energy are each scored against the best documented value for a home storage battery: a value earns its share of that best, times the weight. A documented value always earns points; an undisclosed one earns 0.
100 evidence points · 45% weight
CEC listing: full credit for the certificate criterion. Exact model found in the dated CEC equipment list. This is not a safety certification or system approval. Applies: CEC; UL 9540; UL 1973.
100 / 100 × 45 = 45 points.
Issuer record: CEC Battery List · September 1, 2026 Rev September 1, 2026 · Checked Issuer record: CEC Battery List, official spreadsheet (data unchanged since October 1, 2026; downloaded October 11, 2026) October 1, 2026 · Checked · Earlier document10 years · 20% weight
10 of 20 years, the best documented for a home storage battery (printed by the maker): Bioenno Power 6V 3Ah LiFePO4 Battery (PVC, BLF-0603W)
Ten-year manufacturer headline; full contract, registration, parts and proration conditions remain separate.
50 / 100 × 20 = 10 points.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · Checked Official warranty: EG4 WallMount All Weather warranty page Checked5.78 MWh/kWh · 20% weight
5.776 of 7.638 MWh/kWh, the best documented for a home storage battery lifetime claim (calculated from maker figures): EG4 WallMount All Weather 314Ah
Manufacturer claim: 82.6 MWh ÷ 14.3 nominal kWh. Operating conditions still apply.
75.63 / 100 × 20 = 15.13 points.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedNot documented, 0 points: Warranty energy disclosure, Cell model disclosure.
Computed from public specifications and evidence records. Warranty duration is not service quality; certificate evidence points are not a safety rating. Compatibility and installation limits still apply.
UL 1973: Pack / module checked
Issuer HTML lists standard without edition or expiry. Sales-label WM alias still needs mapping; no physical label checked.
Models: WP-16/280-1AWLL, WP-16/280-1-AWLL
Report: 230927048GZC-001
manufacturer-hosted certificate issue date; not continuous lifecycle proof
Official document: WallMount UL 1973 certificate of compliance Checked Issuer record: ETL directory battery listing for EG4 Electronics LLC CheckedRelated listed system family only. No universal UL 9540 battery badge or approval for every inverter combination. Full component/quantity mapping and site requirements unresolved.
Models: PP-48-280A1-21FX1-AW-*
Report: 241126115GZU-001
manufacturer-hosted certificate issue date; not continuous lifecycle proof
Official document: FlexBOSS / WallMount ESS UL 9540 certificate of compliance Checked Issuer record: ETL directory energy-storage-system listing for EG4 Electronics LLC CheckedModel WP-16/280-1AWLL listed in the CEC battery workbook dated September 1, 2026, row 132. This is an equipment listing, not UL certification or complete-system approval. Pack-level UL 1973 evidence is checked separately.
Models: WP-16/280-1AWLL
Issuer record: CEC Battery List · September 1, 2026 Rev September 1, 2026 · CheckedListed on the California Energy Commission Battery List (data unchanged since October 1, 2026; downloaded October 11, 2026) as EG4 Electronics LLC "WP-16/280-1AWLL": UL 1973, certifying entity Intertek, certificate date 2023-10-26, Ed. 3 : 2022, CEC listing date 2023-12-11. A state equipment list entry, not the certification body's own record.
Models: WP-16/280-1AWLL
Issuer record: CEC Battery List, official spreadsheet (data unchanged since October 1, 2026; downloaded October 11, 2026) October 1, 2026 · Checked · Earlier documentIssuer record matches the listed WP model aliases. Physical sales-label mapping remains a separate check.
Page 3, Safety certifications · Verified
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · Checked Issuer record & datesDatasheet says Passed. Test report, test level and configuration not independently checked.
Page 3, Safety certifications
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedManufacturer enclosure rating; test evidence not checked.
Page 3, Environmental parameters
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedMatch the part to your hardware revision. Linked listings do not confirm stock.
Optional accessory. Seller SKU 1511071. All Weather model only; confirm inverter fit.
Source, page 1Printed as SKU FEWPP-48143-G1 on BigBattery's product page for this EG4 product.
Distributor product page: BigBattery product page: EG4 WallMount 280Ah All Weather (SKU FEWPP-48143-G1), September 28, 2026 capture Checked · Earlier documentManufacturer SKU EG4LL48V100AODWMBV2 · US market
Product / system scope unresolved. Listed on the California Energy Commission Battery List (data unchanged since October 1, 2026; downloaded October 11, 2026) as EG4 Electronics LLC "WP-16/280-1AWLL": UL 1973, certifying entity Intertek, certificate date 2023-10-26, Ed. 3 : 2022, CEC listing date 2023-12-11. A state equipment list entry, not the certification body's own record.
Issuer record: CEC Battery List, official spreadsheet (data unchanged since October 1, 2026; downloaded October 11, 2026) October 1, 2026 · Checked · Earlier documentReviewed specifications and model boundaries; added sourced details and marked calculations. Remaining unpublished fields are retained as unknown. No independent product tests or new issuer verification.
Official product page: EG4 WallMount All Weather product page Checked Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · Checked Official instruction manual: EG4 14.3 kWh PowerPro WallMount AW manual Rev 1.6.3 · Checked Official warranty: EG4 WallMount All Weather warranty page Checked Official document: WallMount UL 1973 certificate of compliance Checked Official document: FlexBOSS / WallMount ESS UL 9540 certificate of compliance CheckedRelated system; equipment mapping pending. Certificate document issued Aug 6, 2025. Related listed system family only. No universal UL 9540 battery badge or approval for every inverter combination. Full component/quantity mapping and site requirements unresolved.
Official document: FlexBOSS / WallMount ESS UL 9540 certificate of compliance Checked Issuer record: ETL directory energy-storage-system listing for EG4 Electronics LLC CheckedFinished battery pack / module. Certificate document issued Oct 30, 2023. Issuer HTML lists standard without edition or expiry. Sales-label WM alias still needs mapping; no physical label checked.
Official document: WallMount UL 1973 certificate of compliance Checked Issuer record: ETL directory battery listing for EG4 Electronics LLC CheckedChangelog reports continuous current revised from 200 A to 140 A; historical full version not retrieved.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedChangelog adds 200 A for 30 minutes.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedDimensions updated to include side panels.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · CheckedProduct / system scope unresolved. Model WP-16/280-1AWLL listed in the CEC battery workbook dated September 1, 2026, row 132. This is an equipment listing, not UL certification or complete-system approval. Pack-level UL 1973 evidence is checked separately.
Issuer record: CEC Battery List · September 1, 2026 Rev September 1, 2026 · CheckedWebpage height 880 mm versus current datasheet/manual 916 mm including side panels; select current complete boundary and preserve webpage claim.
Follow-up: Use the selected metric value for enclosure volume; retain both documents for reference. Verify installation clearances in the model manual.
Official product page: EG4 WallMount All Weather product page Checked Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · Checked Official instruction manual: EG4 14.3 kWh PowerPro WallMount AW manual Rev 1.6.3 · CheckedCurrent documents agree on 140 A continuous / 200 A for 30 minutes. Datasheet changelog reports earlier rating revisions; old full files not archived.
Follow-up: Ingest future revisions as new observations, not edits to the old record.
Official datasheet: EG4 14.3 kWh PowerPro WallMount AW specification sheet Rev 1.2.1 · Checked Official instruction manual: EG4 14.3 kWh PowerPro WallMount AW manual Rev 1.6.3 · CheckedWill Prowse ·
Video by Will Prowse, a co-owner of Charged Reviews.
280Ah All Weather model only; excludes Indoor and 314Ah models. Nameplate suffix and exact current hardware revision are not visible; the catalog retains unresolved manufacturer alias mapping. This is a high-confidence product match, not exact revision verification.
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No recalls or legal notices on file; this is not a complete recall or court search. All notices · Report a notice
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Prices · price basis. * Calculated; estimates labeled. Value needs confirmation; select it for the reason.
