Manufacturer and seller images. Configuration examples may include additional equipment.
Image source: OutBack Power EC-FE5148-B, EnergyCell 5 base module: Figure 8, "Base Module Dimensions", from OutBack's EnergyCell 5 User Manual (December 2025, Revision A), which names one base module, EC-FE5148-B (LV Stackable Base Module). Side and top outline drawings with their dimension lines. Figure from the manufacturer's document, page 12.Paid link · price checked
Printed as "Model Name EC-FE5148-B" in the Base Module table of OutBack's EnergyCell 5 User Manual (December 2025, Revision A), which lists EC-FE5148-B among its part numbers.
Official user manual: EnergyCell 5 User Manual, December 2025, Revision A (OutBack Power) Rev Revision A · December 2025 · Checked · Earlier documentLocation: Cover, Part Numbers; Specifications, Base Module, Model Name
Documented
Printed as "24.25 lbs. [11 kg]" in the Base Module table of OutBack's EnergyCell 5 User Manual (December 2025, Revision A).
Official user manual: EnergyCell 5 User Manual, December 2025, Revision A (OutBack Power) Rev Revision A · December 2025 · Checked · Earlier documentLocation: Specifications, Base Module General Characteristics, Weight
Documented
Printed as "7.1” × 16.9” × 29.1” [180 mm × 430 mm × 740 mm]" (H × W × D) in the Base Module table of OutBack's EnergyCell 5 User Manual (December 2025, Revision A).
Official user manual: EnergyCell 5 User Manual, December 2025, Revision A (OutBack Power) Rev Revision A · December 2025 · Checked · Earlier documentLocation: Specifications, Base Module General Characteristics
Calculated
The base module is listed with the EC-FE5148 battery and EC-FE5148-CM control module under "Part Numbers" in OutBack's EnergyCell 5 User Manual (December 2025, Revision A), which describes it as the "LV Stackable Base Module".
Official user manual: EnergyCell 5 User Manual, December 2025, Revision A (OutBack Power) Rev Revision A · December 2025 · Checked · Earlier documentLocation: Cover, Part Numbers; Specifications, Base Module
Documented
Printed as "The maximum supported number of batteries in a single stack is 8" in OutBack's EnergyCell 5 User Manual (December 2025, Revision A); the manual adds that UL 9540 generally limits a stack to 20 kWh (three batteries) unless the authority having jurisdiction allows more.
Official user manual: EnergyCell 5 User Manual, December 2025, Revision A (OutBack Power) Rev Revision A · December 2025 · Checked · Earlier documentLocation: Installation, note under Figure 13
Documented
Printed as "24.25 lbs. [11 kg]" in the Base Module table of OutBack's EnergyCell 5 User Manual (December 2025, Revision A).
Official user manual: EnergyCell 5 User Manual, December 2025, Revision A (OutBack Power) Rev Revision A · December 2025 · Checked · Earlier documentLocation: Specifications, Base Module General Characteristics, Weight
Documented
Printed as "7.1” × 16.9” × 29.1” [180 mm × 430 mm × 740 mm]" (H × W × D) in the Base Module table of OutBack's EnergyCell 5 User Manual (December 2025, Revision A).
Official user manual: EnergyCell 5 User Manual, December 2025, Revision A (OutBack Power) Rev Revision A · December 2025 · Checked · Earlier documentLocation: Specifications, Base Module General Characteristics
Documented
The base module is listed with the EC-FE5148 battery and EC-FE5148-CM control module under "Part Numbers" in OutBack's EnergyCell 5 User Manual (December 2025, Revision A), which describes it as the "LV Stackable Base Module".
Official user manual: EnergyCell 5 User Manual, December 2025, Revision A (OutBack Power) Rev Revision A · December 2025 · Checked · Earlier documentLocation: Cover, Part Numbers; Specifications, Base Module
Documented
Printed as "The maximum supported number of batteries in a single stack is 8" in OutBack's EnergyCell 5 User Manual (December 2025, Revision A); the manual adds that UL 9540 generally limits a stack to 20 kWh (three batteries) unless the authority having jurisdiction allows more.
Official user manual: EnergyCell 5 User Manual, December 2025, Revision A (OutBack Power) Rev Revision A · December 2025 · Checked · Earlier documentLocation: Installation, note under Figure 13
Documented
Published claims and calculations, not independent test results.
Location: Specifications, Battery Module tables (pages 60 to 61)
Retrieved
OutBack Power's EnergyCell 5 User Manual, December 2025, Revision A, linked from the current product page. Its Specifications section has separate tables for the battery module EC-FE5148, the control module EC-FE5148-CM and the base module EC-FE5148-B, followed by system tables for pre-configured stacks; only the EC-FE5148 battery module table is used. It lists UL 9540 as pending, while the product page lists UL 9540 and OutBack hosts a UL 9540 Certificate of Compliance dated June 12, 2026. Manufacturer claims, not independent tests.
Archived copy of a document published by OutBack Power LLC. 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 OutBack Power LLC published. Original address: https://outbackpower.com/wp-content/uploads/2025/11/EnergyCell-5-User-Manual.pdf. Copyright and takedown
Printed revision date: 2025-12
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 46c78e398f298cae263fc908202da4738cefc9f98e46586faf890e0a9492260a
Earlier revisions, archived captures and copies published by someone other than the manufacturer. Every one stays reachable.
Archived copy of a document published by OutBack Power LLC. 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 OutBack Power LLC published. Original address: https://outbackpower.com/wp-content/uploads/2025/11/EnergyCell-5-User-Manual.pdf. Copyright and takedown
Printed revision date: 2025-12
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 46c78e398f298cae263fc908202da4738cefc9f98e46586faf890e0a9492260a
No warranty terms on file.
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Checked · End date not published.
Signature Solar promotion terms Paid link.Price 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 .
Minimum order: 1 units. Checked .
Distributor product page: OutBack Power | EnergyCell 5 | Battery Base (signaturesolar.com, October 3, 2026 capture) Paid link.Checked · Earlier documentDistributor product page: OutBack Power | EnergyCell 5 | Battery Base (signaturesolar.com, November 2, 2026 capture) Paid link.Checked · Earlier documentPrices we read at Signature Solar · 14 readings · no change in our readings since
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 |
|---|---|---|
| Oct 3, 2026, 11:41 AM PDT | Signature Solar Paid link. | $285.71 |
| Oct 23, 2026, 4:35 AM PDT | Signature Solar Paid link. | $285.71 |
| Oct 27, 2026, 2:11 AM PDT | Signature Solar Paid link. | $285.71 |
| Oct 28, 2026, 2:55 AM PDT | Signature Solar Paid link. | $285.71 |
| Oct 29, 2026, 3:14 AM PDT | Signature Solar Paid link. | $285.71 |
| Oct 30, 2026, 3:36 AM PDT | Signature Solar Paid link. | $285.71 |
| Oct 31, 2026, 3:06 AM PDT | Signature Solar Paid link. | $285.71 |
| Nov 1, 2026, 3:05 AM PST | Signature Solar Paid link. | $285.71 |
| Nov 2, 2026, 3:55 AM PST | Signature Solar Paid link. | $285.71 |
| Nov 2, 2026, 9:25 AM PST | Signature Solar Paid link. | $285.71 |
| Nov 3, 2026, 4:10 AM PST | Signature Solar Paid link. | $285.71 |
| Nov 4, 2026, 4:57 AM PST | Signature Solar Paid link. | $285.71 |
| Nov 7, 2026, 2:06 AM PST | Signature Solar Paid link. | $285.71 |
| Nov 10, 2026, 4:25 AM PST | Signature Solar Paid link. | $285.71 |
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Manufacturer SKU EC-FE5148-B · US market
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