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Read from BigBattery's APEX-10K product page (SKU INV035) on bigbattery.com, "Inverter Specifications" table titled "APEX-6.5K & APEX 10K INVERTER SPECIFICATIONS", which labels figures per model. Printed: "Rated Output Voltage: 120/240 Vac (single-phase / split-phase)". Re-cited on 25 September 2026 to the manufacturer's own document; previously cited to Current Connected (currentconnected.com), which stays listed as an additional source.
Converted: 62 lb x 0.45359237 kg/lb, rounded to 0.01 kg
Printed as "Weight: APEX-6.5K: 48 lbs; APEX-10K: 62 lbs" on BigBattery's APEX-10K product page, captured on September 25, 2026; the APEX-10K entry is recorded.
Printed as "No. of MPPT: 1 + 1" in BigBattery APEX-10K off-grid inverter, SKU INV035, product page (official-source audit capture), Inverter Specifications, No. of MPPT. Revised on 1 October 2026: BigBattery prints "No. of MPPT: 1 + 1", two trackers, which matches the stored count; the conditions should drop the re-citation history.
Printed as "Max. Output Power: APEX-6.5K: 13,000VA; APEX-10K: 20,000VA" on BigBattery's APEX-10K product page, captured on September 25, 2026; the APEX-10K entry is recorded. The page prints no duration for this figure, and it is stated in VA, not W.
Split-phase mode (default); AC output phase voltage (L-N) 100 VAC−120 VAC, 120 VAC (default); AC output line voltage (L-L) 200 VAC−240 VAC, 240 VAC (default)
Printed as "AC output phase voltage (L-N) 100 VAC−120 VAC, 120 VAC (default)" and "AC output line voltage (L-L) 200 VAC−240 VAC, 240 VAC (default)" in the BigBattery APEX 10K Hybrid Inverter User Manual (PDF page 16). Output voltage. The manual cover reads "MODEL SKU: INV035" (PDF page 1); the tables name the model "APEX 10K".
Printed as "APEX 10K 4 mm² /12 AWG 22 A 2P-25A" in the BigBattery APEX 10K Hybrid Inverter User Manual (PDF page 19). The manual cover reads "MODEL SKU: INV035" (PDF page 1); the tables name the model "APEX 10K".
Converted: 28.46 x 17.64 x 5.91 in x 25.4 mm/in, rounded to 0.1 mm
Printed as "APEX-10K: 28.46 × 17.64 × 5.91 inches" in BigBattery APEX-10K off-grid inverter product page (September 25, 2026 capture), Inverter Specifications, General data, Dimension. Revised on 1 October 2026: The millimeter figures are a correct conversion of BigBattery's printed inches, but the page does not say which figure is length, width or height.
Printed as "Cable Size Maximum Input Current Circuit Breaker Model" and "APEX 10K 4 mm² /12 AWG 22 A 2P-25A" in the BigBattery APEX 10K Hybrid Inverter User Manual (PDF page 19). The manual cover reads "MODEL SKU: INV035" (PDF page 1); the tables name the model "APEX 10K".
Read from BigBattery's APEX-10K product page (SKU INV035) on bigbattery.com, "Inverter Specifications" table titled "APEX-6.5K & APEX 10K INVERTER SPECIFICATIONS", which labels figures per model. Printed: "Rated Output Voltage: 120/240 Vac (single-phase / split-phase)". Re-cited on 25 September 2026 to the manufacturer's own document; previously cited to Current Connected (currentconnected.com), which stays listed as an additional source.
Printed as "Max. Output Power: APEX-6.5K: 13,000VA; APEX-10K: 20,000VA" on BigBattery's APEX-10K product page, captured on September 25, 2026; the APEX-10K entry is recorded. The page prints no duration for this figure, and it is stated in VA, not W.
Split-phase mode (default); AC output phase voltage (L-N) 100 VAC−120 VAC, 120 VAC (default); AC output line voltage (L-L) 200 VAC−240 VAC, 240 VAC (default)
Printed as "AC output phase voltage (L-N) 100 VAC−120 VAC, 120 VAC (default)" and "AC output line voltage (L-L) 200 VAC−240 VAC, 240 VAC (default)" in the BigBattery APEX 10K Hybrid Inverter User Manual (PDF page 16). Output voltage. The manual cover reads "MODEL SKU: INV035" (PDF page 1); the tables name the model "APEX 10K".
Printed as "Max. Efficiency: 99.9%" on BigBattery's APEX-10K product page, captured on September 25, 2026. The page does not say which conversion path or load this figure applies to; it prints MPPT tracking efficiency separately.
Read from BigBattery's APEX-10K product page (SKU INV035) on bigbattery.com, "Inverter Specifications" table titled "APEX-6.5K & APEX 10K INVERTER SPECIFICATIONS", which labels figures per model. Printed: "Rated Output Power: APEX-6.5K: 6,500W; APEX-10K: 10,000W"; the APEX-10K figure is 10,000W. Re-cited on 25 September 2026 to the manufacturer's own document; previously cited to Current Connected (currentconnected.com), which stays listed as an additional source.
Read from BigBattery's APEX-10K product page (SKU INV035) on bigbattery.com, "Inverter Specifications" table titled "APEX-6.5K & APEX 10K INVERTER SPECIFICATIONS", which labels figures per model. Printed: "Rated Battery Voltage: 48V". Re-cited on 25 September 2026 to the manufacturer's own document; previously cited to Current Connected (currentconnected.com), which stays listed as an additional source.
Read from BigBattery's APEX-10K product page (SKU INV035) on bigbattery.com, "Inverter Specifications" table titled "APEX-6.5K & APEX 10K INVERTER SPECIFICATIONS", which labels figures per model. Printed: "Rated Output Power: APEX-6.5K: 6,500W; APEX-10K: 10,000W"; the APEX-10K figure is 10,000W. Re-cited on 25 September 2026 to the manufacturer's own document; previously cited to Current Connected (currentconnected.com), which stays listed as an additional source.
Printed as "No. of MPPT: 1 + 1" in BigBattery APEX-10K off-grid inverter, SKU INV035, product page (official-source audit capture), Inverter Specifications, No. of MPPT. Revised on 1 October 2026: BigBattery prints "No. of MPPT: 1 + 1", two trackers, which matches the stored count; the conditions should drop the re-citation history.
Not printed for this model. BigBattery APEX-10K off-grid inverter, SKU INV035, product page (official-source audit capture), Inverter Specifications, "Max. Input Power" row prints "Max. Input Power: APEX-6.5K: 5,000W + 5,000W; APEX-10K: 5,000W + 5,500W". Revised on 1 October 2026: BigBattery prints the maximum PV input per tracker ("5,000W + 5,000W" or "5,000W + 5,500W") but no total; the stored total is our own sum.
Printed as "Cable Size Maximum Input Current Circuit Breaker Model" and "APEX 10K 4 mm² /12 AWG 22 A 2P-25A" in the BigBattery APEX 10K Hybrid Inverter User Manual (PDF page 19). The manual cover reads "MODEL SKU: INV035" (PDF page 1); the tables name the model "APEX 10K".
Read from BigBattery's APEX-10K product page (SKU INV035) on bigbattery.com, "Inverter Specifications" table titled "APEX-6.5K & APEX 10K INVERTER SPECIFICATIONS", which labels figures per model. Printed: "Max. Open Circuit Voltage: 550Vdc + 550Vdc", per tracker. Re-cited on 25 September 2026 to the manufacturer's own document; previously cited to Current Connected (currentconnected.com), which stays listed as an additional source.
Converted: 62 lb x 0.45359237 kg/lb, rounded to 0.01 kg
Printed as "Weight: APEX-6.5K: 48 lbs; APEX-10K: 62 lbs" on BigBattery's APEX-10K product page, captured on September 25, 2026; the APEX-10K entry is recorded.
Printed as "APEX 10K 4 mm² /12 AWG 22 A 2P-25A" in the BigBattery APEX 10K Hybrid Inverter User Manual (PDF page 19). The manual cover reads "MODEL SKU: INV035" (PDF page 1); the tables name the model "APEX 10K".
Converted: 28.46 x 17.64 x 5.91 in x 25.4 mm/in, rounded to 0.1 mm
Printed as "APEX-10K: 28.46 × 17.64 × 5.91 inches" in BigBattery APEX-10K off-grid inverter product page (September 25, 2026 capture), Inverter Specifications, General data, Dimension. Revised on 1 October 2026: The millimeter figures are a correct conversion of BigBattery's printed inches, but the page does not say which figure is length, width or height.
Printed as "Cable Size Maximum Input Current Circuit Breaker Model" and "APEX 10K 4 mm² /12 AWG 22 A 2P-25A" in the BigBattery APEX 10K Hybrid Inverter User Manual (PDF page 19). The manual cover reads "MODEL SKU: INV035" (PDF page 1); the tables name the model "APEX 10K".
Printed as "Support CAN, USB, RS485 communication" in the BigBattery APEX 10K Hybrid Inverter User Manual (PDF page 8). The manual cover reads "MODEL SKU: INV035" (PDF page 1); the tables name the model "APEX 10K".
Printed as "L1 L2 N 63A (L1/L2/N) 13mm2/6 AWG (L1\L2\N) 3P-63A" and "13mm2/6 AWG (L1/L2) 26mm2/3 AWG (N) 2P-125 A" in the BigBattery APEX 10K Hybrid Inverter User Manual (PDF page 19). The manual cover reads "MODEL SKU: INV035" (PDF page 1); the tables name the model "APEX 10K".
Printed as "indoor use (protection level: IP20)" in the BigBattery APEX 10K Hybrid Inverter User Manual (PDF page 12). The manual cover reads "MODEL SKU: INV035" (PDF page 1); the tables name the model "APEX 10K".
Printed as "AC OUTPUT Inverter Model Output Mode Diagram Maximum Current" and "L1 L2 N 63A (L1/L2/N) 13mm2/6 AWG (L1\L2\N) 3P-63A" and "13mm2/6 AWG (L1\L2) 26mm2/3 AWG (N) 2P-125A" in the BigBattery APEX 10K Hybrid Inverter User Manual (PDF page 19). The split-phase row reads the same in the AC input and AC output tables. The manual cover reads "MODEL SKU: INV035" (PDF page 1); the tables name the model "APEX 10K".
Printed as "APEX 10K 70 mm²/00 AWG 220 A 2P-250A" in the BigBattery APEX 10K Hybrid Inverter User Manual (PDF page 19). The manual cover reads "MODEL SKU: INV035" (PDF page 1); the tables name the model "APEX 10K".
Printed as "L1 L2 N 63A (L1/L2/N) 13mm2/6 AWG (L1\L2\N) 3P-63A" and "13mm2/6 AWG (L1/L2) 26mm2/3 AWG (N) 2P-125 A" in the BigBattery APEX 10K Hybrid Inverter User Manual (PDF page 19). The manual cover reads "MODEL SKU: INV035" (PDF page 1); the tables name the model "APEX 10K".
Printed as "BATTERY Inverter Model Cable Size Maximum Current Circuit Breaker Model" and "APEX 10K 70 mm²/00 AWG 220 A 2P-250A" in the BigBattery APEX 10K Hybrid Inverter User Manual (PDF page 19). The manual cover reads "MODEL SKU: INV035" (PDF page 1); the tables name the model "APEX 10K".
Printed as "AC OUTPUT Inverter Model Output Mode Diagram Maximum Current" and "13mm2/6 AWG (L1\L2) 26mm2/3 AWG (N) 2P-125A" in the BigBattery APEX 10K Hybrid Inverter User Manual (PDF page 19). The manual cover reads "MODEL SKU: INV035" (PDF page 1); the tables name the model "APEX 10K".
Printed as "Ambient temperature: -10°C−55°C (14°F−131°F)" in the BigBattery APEX 10K Hybrid Inverter User Manual (PDF page 12). Printed as an installation-location factor. The manual cover reads "MODEL SKU: INV035" (PDF page 1); the tables name the model "APEX 10K".
Printed as "Certificate: UL1741 / RoHS / EN61000-6-1 / EC61000-6-3 / FCC Part15 Class B / IEC62109-1 / IEC62109-2" on BigBattery's APEX-10K product page, captured on September 25, 2026. RoHS is listed without a standard number; the numbered standards in the row are recorded as separate manufacturer claims. No certificate, issuer or scope is published and no issuer record was read.
Original PDF preserved byte for byte, found linked from the Current Connected listing https://www.currentconnected.com/product/bigbattery-apex-10k-off-grid-inverter. 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.
Archived copy of a document published by bigbattery.com. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Manufacturer spec sheet linked as "Spec Sheet" from the APEX-6.5K and APEX-10K product pages on bigbattery.com. The catalog already carried the same bytes as a copy a seller hosted; this record is the file on the manufacturer's own site. The PDF carries its text as images, so no figure is quoted from it here.
Archived copies
Archived copy of a document published by BigBattery. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
BigBattery's own product page on bigbattery.com, captured on September 25, 2026 for the official-source audit; an earlier capture of the same URL that day is archived separately because the page bytes changed. Figures are manufacturer ratings as printed on the page, not test results. The page prints one specification table for the APEX-6.5K and APEX-10K with a label per model where they differ.
BigBattery's own product page for the APEX-10K off-grid inverter, SKU INV035, captured on September 25, 2026; the content is whatever the URL served on that date. Figures are manufacturer ratings as printed on the page, not test results. The page prints one specification table for both APEX models; only the APEX-10K entries are read.
Archived copy of a document published by cdn.currentconnected.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 of a document published by bigbattery.com. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Printed as "Warranty: 5 years" in the specification table on BigBattery's APEX-10K product page, captured on September 25, 2026. The page prints no further warranty terms.
$1,550Price as of Nov 12, 2026, 11:40 AM PST, may change
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Evidence
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
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 details. This number counts only the evidence recorded so far. The source review for this product is not finished, or the maker has not disclosed enough, so the number can only go up.
Missing for this product: Certificate evidence needed; Battery conversion efficiency needed; Idle consumption needed.
Each input is scored against the best documented value for an inverter: warranty term and battery conversion efficiency against every published inverter, idle consumption (lower is better) against the inverters in the same output band, or against every published inverter when the output is not documented. A documented value always earns points; an undisclosed one earns 0 and is listed as missing. Researched products receive a score. Certificates earn points for the evidence itself. Size and weight do not affect scores.
Warranty term5 years6.0 / 30.0
5 of 25 years, the best documented for an inverter (printed by the maker): APsystems DS3
Printed as "Warranty: 5 years" in the specification table on BigBattery's APEX-10K product page, captured on September 25, 2026. The page prints no further warranty terms.
Research pending, 0 points: Certificates, Battery conversion efficiency, Idle consumption.
Warranty term and battery conversion efficiency are compared with every published inverter; idle consumption with the inverters in the same 7 to 15 kW output band. · Method version 0.5
UL1741Product / system scope unresolvedClaimedListed when checked
BigBattery's own APEX-10K product page prints "Certificate: UL1741 / RoHS / EN61000-6-1 / EC61000-6-3 / FCC Part15 Class B / IEC62109-1 / IEC62109-2" in the General data section of a specification table shared by the APEX-6.5K and APEX-10K; UL1741 is recorded as printed, as one entry of that row. The page gives no file number, issuer, certificate or scope, and no issuer record was read. Manufacturer claim only.
EN61000-6-1Product / system scope unresolvedClaimedListed when checked
BigBattery's own APEX-10K product page prints "Certificate: UL1741 / RoHS / EN61000-6-1 / EC61000-6-3 / FCC Part15 Class B / IEC62109-1 / IEC62109-2" in the General data section of a specification table shared by the APEX-6.5K and APEX-10K; EN61000-6-1 is recorded as printed, as one entry of that row. The page gives no file number, issuer, certificate or scope, and no issuer record was read. Manufacturer claim only.
EC61000-6-3Product / system scope unresolvedClaimedListed when checked
BigBattery's own APEX-10K product page prints "Certificate: UL1741 / RoHS / EN61000-6-1 / EC61000-6-3 / FCC Part15 Class B / IEC62109-1 / IEC62109-2" in the General data section of a specification table shared by the APEX-6.5K and APEX-10K; EC61000-6-3 is recorded as printed, as one entry of that row. The page gives no file number, issuer, certificate or scope, and no issuer record was read. Manufacturer claim only.
FCC Part15 Class BProduct / system scope unresolvedClaimedListed when checked
BigBattery's own APEX-10K product page prints "Certificate: UL1741 / RoHS / EN61000-6-1 / EC61000-6-3 / FCC Part15 Class B / IEC62109-1 / IEC62109-2" in the General data section of a specification table shared by the APEX-6.5K and APEX-10K; FCC Part15 Class B is recorded as printed, as one entry of that row. The page gives no file number, issuer, certificate or scope, and no issuer record was read. Manufacturer claim only.
IEC62109-1Product / system scope unresolvedClaimedListed when checked
BigBattery's own APEX-10K product page prints "Certificate: UL1741 / RoHS / EN61000-6-1 / EC61000-6-3 / FCC Part15 Class B / IEC62109-1 / IEC62109-2" in the General data section of a specification table shared by the APEX-6.5K and APEX-10K; IEC62109-1 is recorded as printed, as one entry of that row. The page gives no file number, issuer, certificate or scope, and no issuer record was read. Manufacturer claim only.
IEC62109-2Product / system scope unresolvedClaimedListed when checked
BigBattery's own APEX-10K product page prints "Certificate: UL1741 / RoHS / EN61000-6-1 / EC61000-6-3 / FCC Part15 Class B / IEC62109-1 / IEC62109-2" in the General data section of a specification table shared by the APEX-6.5K and APEX-10K; IEC62109-2 is recorded as printed, as one entry of that row. The page gives no file number, issuer, certificate or scope, and no issuer record was read. Manufacturer claim only.