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Ultimatron UBL-12-300-PRO 12.8V 300Ah LiFePO4 Battery: Ultimatron UBL-12-300-PRO battery, the product figure on page 1 of Ultimatron France's UBL-12-300-PRO technical sheet. Figure from the manufacturer's document, page 1.
Photo 1 of 1. 1 photo · Image from ultimatron-france.fr
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Image source: Ultimatron UBL-12-300-PRO battery, the product figure on page 1 of Ultimatron France's UBL-12-300-PRO technical sheet. Figure from the manufacturer's document, page 1.

Ultimatron UBL-12-300-PRO 12.8V 300Ah LiFePO4 Battery

By UltimatronSKU UBL-12-300-PRO

DC battery module12.8 V300 Ah
Evidence score5/100Missing details
No owner reviews yet · Write the first
Basic specs3.84 kWh*Discharge200 ACharge90 A recommendedPeak current: 600 A$ / rated kWhUnavailableWarranty5 yearsSee termsLifetime productionNot publishedSize27.31 L*Value needs confirmation: Technical sheet and store page print different dimensionsW: 240 × H: 218 × L: 522 mm28.25 kg62.28 lb0.14 kWh/L*CertificatesNone on fileEvidence missing

Key specs

Units
SKU
UBL-12-300-PRO
Official product page
Sources

Printed as "SKU: UBL-12-300-PRO" on Ultimatron France's own store page for this product, captured October 27, 2026; the technical sheet prints the same model in its heading.

Official product page: Ultimatron France store product page: UBL-12-300-PRO (October 27, 2026 capture) Checked · Earlier document

Location: Store product page, SKU line

Documented

Chemistry
LiFePO4
Official datasheet
Sources

Printed as "lithium iron phosphate batteries (LiFePO4)" in the page 1 feature text; the heading reads "ULTIMATRON LiFePO4 Smart BMS".

Official datasheet: Ultimatron France technical sheet (EN): UBL-12-300-PRO LiFePO4 Smart BMS lithium battery Checked · Earlier document

Location: Page 1, feature text

Documented

Nominal energy
3.84 kWh
Converted: 3840 Wh / 1000 Wh/kWh
Official datasheet
Sources

Converted: 3840 Wh / 1000 Wh/kWh

Printed as "3840Wh" in the row "Energy"; recorded in kWh.

Official datasheet: Ultimatron France technical sheet (EN): UBL-12-300-PRO LiFePO4 Smart BMS lithium battery Checked · Earlier document

Location: Page 2, Electrical performance, Energy

Converted

Nominal voltage
12.8 V
Official datasheet
Sources

Printed as "12.8V" in the row "Nominal Voltage".

Official datasheet: Ultimatron France technical sheet (EN): UBL-12-300-PRO LiFePO4 Smart BMS lithium battery Checked · Earlier document

Location: Page 2, Electrical performance, Nominal Voltage

Documented

Rated capacity
300 Ah
Official datasheet
Sources

Printed as "300Ah" in the row "Nominal Capacity".

Official datasheet: Ultimatron France technical sheet (EN): UBL-12-300-PRO LiFePO4 Smart BMS lithium battery Checked · Earlier document

Location: Page 2, Electrical performance, Nominal Capacity

Documented

Continuous discharge current
200 A
Official datasheet
Sources

Printed as "200A" in the row "Maximum continuous Discharge Current".

Official datasheet: Ultimatron France technical sheet (EN): UBL-12-300-PRO LiFePO4 Smart BMS lithium battery Checked · Earlier document

Location: Page 2, Discharge performance, Maximum continuous Discharge Current

Documented

Maximum charge current
150 A
Official datasheet
Sources

Printed as "150A" in the row "Maximum Charge Current".

Official datasheet: Ultimatron France technical sheet (EN): UBL-12-300-PRO LiFePO4 Smart BMS lithium battery Checked · Earlier document

Location: Page 2, Charge performance, Maximum Charge Current

Documented

Peak discharge current
600 A
Official datasheet
Sources

Printed as "600A ( 200~500ms)" in the row "Peak Discharge Cut-Off Current"; the time range printed is 200~500ms.

Official datasheet: Ultimatron France technical sheet (EN): UBL-12-300-PRO LiFePO4 Smart BMS lithium battery Checked · Earlier document

Location: Page 2, Discharge performance, Peak Discharge Cut-Off Current

Documented

1 spec not documented yet: usable energyHelp fill in ›

All specs24
Chemistry
LiFePO4
Official datasheet
Sources

Printed as "lithium iron phosphate batteries (LiFePO4)" in the page 1 feature text; the heading reads "ULTIMATRON LiFePO4 Smart BMS".

Official datasheet: Ultimatron France technical sheet (EN): UBL-12-300-PRO LiFePO4 Smart BMS lithium battery Checked · Earlier document

Location: Page 1, feature text

Documented

Nominal energy
3.84 kWh
Converted: 3840 Wh / 1000 Wh/kWh
Official datasheet
Sources

Converted: 3840 Wh / 1000 Wh/kWh

Printed as "3840Wh" in the row "Energy"; recorded in kWh.

Official datasheet: Ultimatron France technical sheet (EN): UBL-12-300-PRO LiFePO4 Smart BMS lithium battery Checked · Earlier document

Location: Page 2, Electrical performance, Energy

Converted

Usable energy
Not documented
Nominal voltage
12.8 V
Official datasheet
Sources

Printed as "12.8V" in the row "Nominal Voltage".

Official datasheet: Ultimatron France technical sheet (EN): UBL-12-300-PRO LiFePO4 Smart BMS lithium battery Checked · Earlier document

Location: Page 2, Electrical performance, Nominal Voltage

Documented

Rated capacity
300 Ah
Official datasheet
Sources

Printed as "300Ah" in the row "Nominal Capacity".

Official datasheet: Ultimatron France technical sheet (EN): UBL-12-300-PRO LiFePO4 Smart BMS lithium battery Checked · Earlier document

Location: Page 2, Electrical performance, Nominal Capacity

Documented

Continuous discharge current
200 A
Official datasheet
Sources

Printed as "200A" in the row "Maximum continuous Discharge Current".

Official datasheet: Ultimatron France technical sheet (EN): UBL-12-300-PRO LiFePO4 Smart BMS lithium battery Checked · Earlier document

Location: Page 2, Discharge performance, Maximum continuous Discharge Current

Documented

Maximum charge current
150 A
Official datasheet
Sources

Printed as "150A" in the row "Maximum Charge Current".

Official datasheet: Ultimatron France technical sheet (EN): UBL-12-300-PRO LiFePO4 Smart BMS lithium battery Checked · Earlier document

Location: Page 2, Charge performance, Maximum Charge Current

Documented

Peak discharge current
600 A
Official datasheet
Sources

Printed as "600A ( 200~500ms)" in the row "Peak Discharge Cut-Off Current"; the time range printed is 200~500ms.

Official datasheet: Ultimatron France technical sheet (EN): UBL-12-300-PRO LiFePO4 Smart BMS lithium battery Checked · Earlier document

Location: Page 2, Discharge performance, Peak Discharge Cut-Off Current

Documented

Recommended charge current
90 A
Official datasheet
Sources

Printed as "90A" in the row "Recommended Charge Current".

Official datasheet: Ultimatron France technical sheet (EN): UBL-12-300-PRO LiFePO4 Smart BMS lithium battery Checked · Earlier document

Location: Page 2, Charge performance, Recommended Charge Current

Documented

Charge cutoff voltage
14.6 V
Official datasheet
Sources

Printed as "14.6V (2000ms)" in the row "Charge Cut-Off Voltage" (the 2000 ms is printed beside the voltage).

Official datasheet: Ultimatron France technical sheet (EN): UBL-12-300-PRO LiFePO4 Smart BMS lithium battery Checked · Earlier document

Location: Page 2, Charge performance, Charge Cut-Off Voltage

Documented

Discharge cutoff voltage
10 V
Official datasheet
Sources

Printed as "10V (2000 ms)" in the row "Discharge Cut-Off Voltage".

Official datasheet: Ultimatron France technical sheet (EN): UBL-12-300-PRO LiFePO4 Smart BMS lithium battery Checked · Earlier document

Location: Page 2, Discharge performance, Discharge Cut-Off Voltage

Documented

Lifetime production

Not published

Published claims and calculations are not independently tested lifetime output.

Published claims and calculations, not independent test results.

Documents

2 on file
  • PDF
    Ultimatron France technical sheet (EN): UBL-12-300-PRO LiFePO4 Smart BMS lithium batteryOfficialUltimatron FranceOfficial datasheet
    Source details
    Revision
    Not stated
    Revision date
    Not stated

    Archived copy captured on 2026-10-27.

    Location: Page 2, technical sheet tables; page 1, product figure and notes

    Retrieved

    Ultimatron France's own technical sheet (PDF, 2 pages, English) on ultimatron-france.fr, linked from the downloads page of ultimatron-france.fr, captured on October 27, 2026. The model heading is printed as lettering without a text layer and was read from the rendered page; the table's text layer prints the row labels and the values in separate runs, so each cited value is quoted as the text layer prints it and its row was confirmed on the rendered page. It carries no revision date. Manufacturer document, not an independent test.

    Archived copies

    Archived copy of a document published by Ultimatron France. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

    Archived backup Revision not recorded · 0.88 MB
    Source first found
    This copy captured
    Archived
    File detailsOriginal source
    Pages
    2
    Embedded creation date
    Dec 1, 2023
    Embedded modification date
    Dec 1, 2023

    Embedded dates are file metadata, not independent proof of publication.

    SHA-256: f5c0cff39560e2229830a83d65c5802778415f37abe760430b92018c8ea11b29

    Open
  • WEB
    Ultimatron France store product page: UBL-12-300-PRO (October 27, 2026 capture)Ultimatron FranceOfficial product page
    Source details
    Revision
    Not stated
    Revision date
    Not stated

    Archived copy captured on 2026-10-27.

    Location: SKU line; Description tab specification table; Informations complémentaires

    Retrieved

    Ultimatron France's own store product page (ultimatron-france.fr, in French), captured on October 27, 2026 with the paced research fetcher; the content is whatever the address served on that date. Manufacturer statements, not independent tests; the page carries no revision date.

    Open

Archive and older revisions

Archive and older revisions1

Earlier revisions, archived captures and copies published by someone other than the manufacturer. Every one stays reachable.

  • WEB
    Ultimatron France downloads page (Téléchargements), October 27, 2026 captureOfficialUltimatron FranceOfficial product page
    Source details
    Revision
    Not stated
    Revision date
    Not stated

    Archived copy captured on 2026-10-27.

    Location: Lithium battery technical sheets, English (EN) links

    Retrieved

    Ultimatron France's own downloads page (ultimatron-france.fr/telechargements/), captured on October 27, 2026 with the paced research fetcher. It lists and links Ultimatron's technical sheets, manuals and warranty conditions by product; it carries no revision date.

    Open

Archived documents

Ultimatron France technical sheet (EN): UBL-12-300-PRO LiFePO4 Smart BMS lithium battery

Archived copy of a document published by Ultimatron France. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

Archived backup Revision not recorded · 0.88 MB
Source first found
This copy captured
Archived
File detailsOriginal source
Pages
2
Embedded creation date
Dec 1, 2023
Embedded modification date
Dec 1, 2023

Embedded dates are file metadata, not independent proof of publication.

SHA-256: f5c0cff39560e2229830a83d65c5802778415f37abe760430b92018c8ea11b29

Submit a document

Warranty

Warranty term
5 years
Official datasheet
Sources

Printed as "5 years manufacturer's warranty" and on the "5 YEARS WARRANTY" badge; the warranty conditions document was not read for this record.

Official datasheet: Ultimatron France technical sheet (EN): UBL-12-300-PRO LiFePO4 Smart BMS lithium battery Checked · Earlier document

Location: Page 1, feature list and badge

Documented

Sellers

No sellers found.

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Price history

No seller price history.

Owner reviews

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Your reviews · Review policy

Evidence score

5/100Missing details20% documented

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: Certificates evidence needed; Warranty energy disclosure evidence needed; Lifetime / capacity evidence needed; Cell model disclosure evidence needed.

12 V · Format not recorded · 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.

Warranty term5 years5 / 20

5 years · 20% weight

5 of 20 years, the best documented for a home storage battery (printed by the maker): Bioenno Power 6V 3Ah LiFePO4 Battery (PVC, BLF-0603W)

Printed as "5 years manufacturer's warranty" and on the "5 YEARS WARRANTY" badge; the warranty conditions document was not read for this record.

25 / 100 × 20 = 5 points.

Official datasheet: Ultimatron France technical sheet (EN): UBL-12-300-PRO LiFePO4 Smart BMS lithium battery Checked · Earlier document
Lifetime / capacityResearch pending0 / 20

No qualifying figure · 20% weight

Not published. No lifetime-production bonus.

Not documented. Undisclosed data scores 0.

Official datasheet: Ultimatron France technical sheet (EN): UBL-12-300-PRO LiFePO4 Smart BMS lithium battery Checked · Earlier document

Research pending, 0 points: Certificates, 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.

How it works Manufacturer? Submit documentation

Certificates

No certificates on file. Certificate guide

Parts and accessories

No sourced accessories or replacement parts listed yet.

Model history

Model identity

Model
UBL-12-300-PRO

Manufacturer SKU UBL-12-300-PRO

No historical observations recorded yet.

Community discussions

No discussions linked yet. Search DIY Solar Forum

Recalls / legal notices

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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