SOK 12V 280Ah Heated Bluetooth LiFePO4 Battery

Name: SOK 12V 280Ah Heated Bluetooth LiFePO4 Battery
SKU: SK12V280H

Versus

A 12.8 V, 280 Ah heated LiFePO4 battery with Bluetooth app monitoring, a serviceable aluminium case and a 7-year warranty, for cold-weather RV and off-grid banks.

$999

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SKU: SK12V280H

Usability

4.7 out of 10

Capacity812.8 V times 280 Ah is 3,584 Wh, on the 3,300 to 3,799 Wh rung

Charging: 56 A recommended, 120 A maximum, at 14.6 V

Efficiency449.1 Wh per pound at 73 lb

Operating Range1200 A continuous, 0.71C on 280 Ah

Peak: 250 A for 7.5 seconds, give or take 2.5
Temperature: discharges from -4 to 140 °F

Lifespan4Manual: up to 4,000 cycles at 80 percent depth; no end-of-life capacity

Conflict: SOK's page prints 8000~12000 cycles with no depth or end point

Features7Heater, Bluetooth, 4 in series and 10 in parallel; no CAN, RS485 or IP65

Heater: on below 32 °F with enough charger current, off at 41 °F
Case: IP50 painted aluminium; the lid detaches for BMS and cell swaps
Charge range: page and spec sheet print 4 to 113 °F, beside -20 °C

Verification2Verification: cell-level UL 1973 claim only; no pack record in any directory

Store claim: UL 1973 and IEC 62619 for the cells only
Intertek: no record for this model (Hocan Group records cover SK48V100 and SK12V206H/PH)
Other directories: no record at UL Product iQ, LabTest, TÜV Rheinland or the CEC battery list

Warranty & Support77 years of repair or replacement, transferable, no proration stated

Exclusion: round-trip shipping is not covered

Price

List: $999.00 at us.sokbattery.com

Summary

Large heated capacity, heavy and Current-Limited

What it is: a 12.8 V, 280 Ah heated LiFePO4 battery with Bluetooth in a serviceable aluminium case for RV, marine and off-grid banks
The trade-off: large heated capacity and app monitoring, but heavy for its size, a modest continuous current and no closed-loop communication
Conflict: the page's cycle rating is two to three times the manual's; the manual is used
Look elsewhere for: more than 200 A from one battery, a lighter battery or inverter communication over CAN

Strengths

Large capacity in one 12 V case
Built-in heater for cold charging
Bluetooth monitoring through a phone app
User-serviceablewith replaceable BMS and cells
Long, transferable warranty

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Drawbacks

Heavy for its capacity
Low continuous current for its capacity
Page cycle rating far above the manual's
No CAN or RS485 battery communication
Case not rated against water
Warranty excludes round-trip shipping

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Social score

7.0 out of 10

RedditBrand-level6 out of 10

Repairs: on r/vandwellers an owner whose SOK arrived with a bad BMS said support sent a new BMS module, no questions asked, and he swapped it himself (May 2024)
Reliability: in the same thread one owner reported two years on solar with 412 Ah of SOKs and another two years of daily use on a 206 Ah, both without problems (May 2024)
Load: another commenter there called SOKs fit only for low-stress use, saying their BMS burns out on big inverters or large charge sources (May 2024)
BMS: an r/SolarDIY owner of four 206 Ah units in a 24 V bank asked whether a BMS was faulty when one battery read 13 percent beside its partner at 100 percent (October 2025)

Google7 out of 10

Liked

Measured about 285 Ah, per one tester
Easy disassembly for repairs, per one tester
Heavy-duty case and terminals, per one tester

Complaints

Weak Bluetooth signal, per one tester
Heavy from the metal case, per one tester
Side terminals awkward in some installs, per one tester

Read the full summary

Love Your RV: SOK sent the tester this SK12V280H free and his links carry an SOK referral code; a written review with matching videos (February 2024, updated April 2026)
Measured: after months in his truck toolbox power station with draws near 1,500 W, he measured about 285 Ah against 280 Ah and ran the 200 A discharge and 120 A charge tests
Verdict: he called it excellent value and easy to repair; dislikes were its weight, side terminals, a weak Bluetooth signal and screw heads on the bottom

YouTube8 out of 10

Liked

Measured 291 Ah against 280 Ah rated
Build quality inside the case
Continuous balancing while a charger is connected

Complaints

Base screws not countersunk
Series wiring of heated 12 V units not advised

Read the full summary

Lithium Solar: ran a new SK12V280H on a 12 V inverter at about 75 A and measured 291 Ah before the BMS cut off, then tore it down (October 2023, about 23,550 views)
Disclosure: the video's product links, SOK's among them, are affiliate links
Verdict: called it built exceedingly well, faulted screws left proud on the base, and advised against wiring heated 12 V batteries in series

AmazonProduct-line7 out of 10

Listing: SOK Battery's Amazon US listing for the 12 V 280 Ah heated battery rates 5.0 from 6 ratings, all five-star (October 2026)
Scope: it sits in one size selector with SOK's 100, 206 and 314 Ah batteries, and six ratings is too few to read much from

User reviewsNot scored

The retailer pool is blank: no US retailer listing for any SOK battery carried ten or more native product reviews on 2026-10-14.

Trustpilot

Trustpilot rates sokbattery.com 3.2 from 1 review on a claimed page, that one unprompted and one-star (December 2025), and lists no page for us.sokbattery.com (October 2026).

Track record

The BBB rates Sok Battery of 4277 Schaefer Ave A+, not accredited, with no complaints in three years and no customer reviews (October 2026).
No CPSC or Health Canada recall names SOK, searched in October 2026.

Not countedExcluded

Not counted in any pool: us.sokbattery.com reviews and client videos, SOK's YouTube channel and Facebook group, SOK staff forum posts, dealer pages, SOK's affiliate programme or testers' own stores.

Summary

Brand-level

A+ from the BBB, 3.2 on Trustpilot from one review

Specs

Capacity3,000-3,999 Wh
AC OutputNot applicable
System Voltage12 V
Panel PowerNot applicable
Charge CurrentNot applicable
Safety ListingClaimed only
Cell TypeNot applicable
Low-Temp ChargingSelf-heating
Warranty7 Years
MonitoringBluetooth built in
Weight73.0 lb

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At a glance

13.07 x 9.52 x 9.84 in
M8 terminals, 5/16 in lugs
Painted aluminium case
ABC-BMS phone app

Company

SOK Battery packs are made by Zhuhai Sepicn Electronics and Technology in Zhuhai, China, for Hocan Group Co Limited of Hong Kong, with SOK Energy Inc of Ontario, California, founded in 2019.

Where it sells

It sells with a cart at us.sokbattery.com, on Amazon through the SOK Battery Store as seller SOK Battery-SUNMAXENERGY, and through dealers including ShopSolar and Current Connected.

Description

The SOK SK12V280H is a 12.8 V, 280 Ah lithium iron phosphate battery storing 3,584 Wh in a black-painted aluminium case of 13.07 x 9.52 x 9.84 in. It weighs 73 lb and is rated IP50, with M8 terminals for 5/16 in lugs torqued to 80-100 in-lb.

Its BMS is rated 200 A continuous discharge and 250 A peak for 7.5 seconds, give or take 2.5. It charges at 56 A recommended and 120 A maximum, at 14.6 V. A heater pad switches on below 32 °F when a charger is connected and supplying enough current, and switches off at 41 °F, when cell charging resumes.

Bluetooth reports to the ABC-BMS phone app. Up to four connect in series, with a voltage balancer, and up to ten in parallel. The lid detaches, and the BMS and cells are replaceable.

SOK's page prints an 8000~12000 cycle life, while SOK's 12 V manual, which covers this model, gives up to 4,000 cycles at 80 percent depth of discharge. The warranty is 7 years.

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