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Vatrer 12V 300Ah Self-Heating LiFePO4 Battery

7.0
SocialScore
Versus

A 3.84 kWh, 12.8 V LiFePO4 battery with a built-in heater for charging below freezing, a 200 A BMS, Bluetooth app monitoring and an IP65 case.

$630

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SKU: D-300AH-HEI-JR-DJ

Usability

5.6 out of 10
Capacity93,840 Wh from 12.8 V and 300 Ah, on the 3,800 to 4,999 Wh rung
  • Output: 2,560 W maximum load or inverter power
Efficiency1070.2 Wh per pound at 54.67 lb on the product page
  • Conflict: Vatrer's October 2025 manual lists 58.42 lb and a 520 x 269 x 220 mm case
Operating Range1200 A continuous discharge, 0.67C on 300 Ah
  • Temperature: charges -4 to 122°F, discharges -4 to 140°F
Lifespan6More than 4,000 cycles; no depth or end point published, one rung down
  • Conflict: the page's web address says 5,000 cycles; its text says 4,000+
Features8Self-heating, Bluetooth, IP65, 4S4P; no CAN or RS485
  • Heater: runs at or below 32°F on charging input, stops above 41°F
  • Expansion: up to a 51.2 V, 1,200 Ah bank as 4S4P
Verification2No UL 1973 or UL 2054 record in any directory; page makes no listing claim
  • Claim: none on page
  • Holder search: no record
  • UN 38.3: not counted
Warranty & Support33 years on registration; exchanges from month 25 depreciated, one rung down
  • Not scored: 2 more years only after an order review and activation
  • List: $629.99 at vatrerpower.com
  • Folded: 2-pack $1,257.99, 4-pack $2,511.99, 10-pack $6,269.99

3.84 kWh heated, low current for Size

  • What it is: a 12.8 V, 300 Ah LiFePO4 battery with a charge-powered heater, Bluetooth and a 200 A BMS
  • The trade-off: large capacity and light weight for its size, but only 0.67C continuous and no closed-loop port
  • Conflict: Vatrer's own manual describes a larger, heavier case than the page and Amazon listing
  • Look elsewhere for: more than 200 A from one battery or a CAN or RS485 link

Strengths

  • Large capacity in one battery
  • Light for its capacity
  • Built-in heater for cold charging
  • Bluetooth app monitoring
  • IP65 case

Drawbacks

  • Low continuous current for its capacity
  • Heater needs a charge source above 10 A
  • No CAN or RS485 port
  • Vatrer's manual and page disagree on size and weight
  • Cycle figure differs across Vatrer's own page
  • Two more warranty years need a posted reviewexchanges depreciated

Social score

7.0 out of 10
RedditBrand-level6 out of 10
  • Overall: a handful of Reddit threads, mostly reporting Vatrer batteries working as described
  • Cabin: an r/solar owner running two 12V 100Ah units for ten months reported balanced cells and no capacity loss he could detect (about March 2026)
  • Caveats: the same owner found the app dated, with disconnects at range, and the documentation in the box sparse (about March 2026)
  • Outdoor use: in an r/SolarDIY thread on the wall battery, a reply said it is an indoor battery despite its IP65 rating, and another pointed to Will Prowse's mostly positive tests (July 2025)
  • Track record: an r/SolarDIY reply called Vatrer generally good batteries but said the record depends on the model (September 2026)
Google7 out of 10
Liked
  • Weight against lead-acid, per one owner
  • App shows charge, temperature and cells, per one owner
Complaints
  • Needed a new box and tray for its size, per one owner
Read the full summary
  • Keystone Forums: an RV owner who bought one on Amazon for $580 liked its weight against lead-acid and the app's charge, temperature and cell readings (November 2025)
  • Fit: the same owner needed a new battery box and a welded tray for its size (November 2025)
  • DIY Solar Forum: an off-grid trailer owner ordered three; they arrived at 52 percent and he charged each to full before installing them (July 2026)
YouTube7 out of 10
Liked
  • Heater worked in a freeze test (Woodswalker 1965)
  • Fits where three 100 Ah batteries would not
  • Shipped at a safe state of charge
Read the full summary
  • Woodswalker 1965: said the heater worked when he froze a unit and charged it, that it shipped at 53 percent and fit where three 100 Ah batteries would not (2025, about 16,000 views, the earlier 58 lb case)
  • vuaeco: ran discharge, app and cold-weather tests on the compact version (April 2026, 14,257 views)
  • Disclosure: vuaeco links to Vatrer's store through a referral link
Amazon8 out of 10
Liked
  • Quality, per 42 of 43 mentions
  • Capacity, per 15 mentions
  • Bluetooth app, per seven mentions
Complaints
  • Listed width includes the handles, per two mentions
Read the full summary
  • Rating: the VATRER POWER 12.8V 300Ah Self-Heating listing holds 4.9 stars from 83 ratings (October 2026)
  • Themes: Amazon's review summary counts 42 of 43 quality mentions positive, 15 of 15 on capacity, nine on value, seven on Bluetooth and six on installation (October 2026)
  • Size: two of five size mentions say the listed width includes the handles, so the case is narrower than shown
User reviewsNot scored

The retailer pool is blank: no US retailer listing carries ten native, unflagged reviews of this Vatrer model.

Trustpilot
  • Trustpilot rates vatrerpower.com 4.6 from 59 reviews on a page Vatrer claimed in April 2026 and invites customers to, with 80 percent five-star against 2 percent one-star (October 2026).
  • Vatrer links that Trustpilot page from its warranty activation step, so some of those reviews were written to unlock extra coverage.
Track record
  • Searches in October 2026 found no BBB file for Vatrer Power under either its brand or its Shenzhen name.
  • No CPSC or Health Canada recall names Vatrer, searched in October 2026.
Not countedExcluded

Not counted in any pool: vatrerpower.com's own Judge.me reviews and FAQs, the Vatrer YouTube channel, its Facebook page and groups, any brand-run subreddit, dealer pages, or Vatrer's affiliate and creator programmes.

Brand-level

4.6 on Trustpilot, two warranty years tied to A review

Specs

  • Capacity3,000-3,999 Wh
  • AC OutputNot applicable
  • System Voltage12 V
  • Panel PowerNot applicable
  • Charge CurrentNot applicable
  • Safety ListingNone verifiable
  • Cell TypeNot applicable
  • Low-Temp ChargingSelf-heating
  • Warranty3 Years
  • MonitoringBluetooth built in
  • Weight54.7 lb

At a glance

  • 15.12 x 7.64 x 9.76 in
  • M8 terminal bolts
  • Upright or sideways mount
  • Vatrer Power is the brand of Shenzhen Vatrer Power Source Technology Co., Ltd., a company based in Shenzhen, China, that its own blog says was founded in 2021.
  • The VATRER trademark is registered at the USPTO to Guangdong Zhongju Power Technology Co., Ltd. of Huizhou, and no US company is named behind the brand.
  • It sells with a cart at vatrerpower.com, which also runs Canadian, European, Japanese and Australian stores.
  • In the US it also sells on Amazon through the VATRER POWER brand store and on Walmart.com as the marketplace seller VATRER POWER.

The Vatrer 12V 300Ah Self-Heating (store SKU D-300AH-HEI-JR-DJ, model "12.8V 300Ah" on its test report) is a 12.8 V, 300 Ah LiFePO4 battery with a built-in heater, storing 3,840 Wh. It has a 200 A BMS for continuous charge and discharge, a 2,560 W maximum load and 60 A (0.2C) recommended charging at 14.2 to 14.6 V.

At or below 32°F, charging input runs the heater instead of charging the cells, and above 41°F heating stops and charging begins. The manual asks for more than 10 A of charge current for the heater.

It charges from -4 to 122°F, discharges from -4 to 140°F and has an IP65 ABS case with M8 terminals that mounts upright or on its side. The product page gives 15.12 x 7.64 x 9.76 in (384 x 194 x 248 mm) and 54.67 lb (24.8 kg).

Vatrer's October 2025 manual gives 520 x 269 x 220 mm and 58.42 lb, which describes a larger case. In the box: the battery, two M8 terminal bolts and two items the page lists as maps. Bluetooth links it to the Vatrer app, and it expands to a 51.2 V, 1,200 Ah bank (4S4P).

Multi-packs sell at $1,257.99 for two, $2,511.99 for four and $6,269.99 for ten.

Researched and edited by Michael Ambrose · Unbroken Ads LLC · How we score

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We compare products properly: every one scored against published criteria, with what independent sources actually say kept separate from our own assessment.

The method is published so you can see what a score means. Where evidence is missing, the page says so rather than showing an invented number.

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