SOK SK12V280H 12V 280Ah Heated Battery vs Rich Solar ALPHA 3 LITE 300Ah Battery

• Operating RangeSOK SK12V280H 12V 280Ah Heated Battery: 1Rich Solar ALPHA 3 LITE 300Ah Battery: 5 (higher)

  SOK SK12V280H 12V 280Ah Heated Battery

  • 200 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

  Rich Solar ALPHA 3 LITE 300Ah Battery

  • 300 A continuous discharge, 1.0C on 300 Ah
  • Trip: BMS cuts discharge above about 320 A after 10 seconds
  • Temperature: charges 32 to 131°F, discharges -4 to 140°F
• FeaturesSOK SK12V280H 12V 280Ah Heated Battery: 7 (higher)Rich Solar ALPHA 3 LITE 300Ah Battery: 3

  SOK SK12V280H 12V 280Ah Heated Battery

  • Heater, 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

  Rich Solar ALPHA 3 LITE 300Ah Battery

  • Low-temperature cut-off and IP65; no heater, Bluetooth, comms or series
  • Expansion: up to four in parallel
• EfficiencySOK SK12V280H 12V 280Ah Heated Battery: 4Rich Solar ALPHA 3 LITE 300Ah Battery: 6 (higher)

  SOK SK12V280H 12V 280Ah Heated Battery

  • 49.1 Wh per pound at 73 lb

  Rich Solar ALPHA 3 LITE 300Ah Battery

  • 3,840 Wh in 71.3 lb is 53.9 Wh per pound
• LifespanSOK SK12V280H 12V 280Ah Heated Battery: 4Rich Solar ALPHA 3 LITE 300Ah Battery: 6 (higher)

  SOK SK12V280H 12V 280Ah Heated Battery

  • Manual: 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

  Rich Solar ALPHA 3 LITE 300Ah Battery

  • 4,000 cycles to a 70 percent end point by the manual, one rung down
  • Spec sheet: 4,000+ cycles at 80 percent depth, end point unstated
• Warranty & SupportSOK SK12V280H 12V 280Ah Heated Battery: 7 (higher)Rich Solar ALPHA 3 LITE 300Ah Battery: 5

  SOK SK12V280H 12V 280Ah Heated Battery: 7 Years · Rich Solar ALPHA 3 LITE 300Ah Battery: 5 Years.

  SOK SK12V280H 12V 280Ah Heated Battery

  • 7 years of repair or replacement, transferable, no proration stated
  • Exclusion: round-trip shipping is not covered

  Rich Solar ALPHA 3 LITE 300Ah Battery

  • 5 years, prorated after year one
  • Schedule: 80 percent cover in year two, falling to 20 percent in year five
  • Condition: charge within 7 days of purchase and every 6 months
• CapacitySOK SK12V280H 12V 280Ah Heated Battery: 8Rich Solar ALPHA 3 LITE 300Ah Battery: 9 (higher)

  SOK SK12V280H 12V 280Ah Heated Battery

  • 12.8 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

  Rich Solar ALPHA 3 LITE 300Ah Battery

  • 12.8 V times 300 Ah is 3,840 Wh, on the 3,800 to 4,999 Wh rung

Same score

• VerificationSOK SK12V280H 12V 280Ah Heated Battery: 2Rich Solar ALPHA 3 LITE 300Ah Battery: 2

  only the SOK SK12V280H 12V 280Ah Heated Battery: Claimed only; only the Rich Solar ALPHA 3 LITE 300Ah Battery: None verifiable.

  SOK SK12V280H 12V 280Ah Heated Battery

  • Verification: 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

  Rich Solar ALPHA 3 LITE 300Ah Battery

  • No listing for ALPHA 3 LITE; UL 1973 record names ALPHA 3 PRO, a near-miss
  • Near-miss: Intertek UL 1973 records name ALPHA 3 PRO; the listing does not travel
  • Claim: page lists UN 38.3 and MSDS only (transport, not safety)

Not scored for either

• ValueSOK SK12V280H 12V 280Ah Heated Battery: —not scoredRich Solar ALPHA 3 LITE 300Ah Battery: —not scored

• RedditSOK SK12V280H 12V 280Ah Heated Battery: 6 (higher)Rich Solar ALPHA 3 LITE 300Ah Battery: 4

  The SOK SK12V280H 12V 280Ah Heated Battery reading covers the whole brand; the Rich Solar ALPHA 3 LITE 300Ah Battery reading covers the whole brand.

  SOK SK12V280H 12V 280Ah Heated Battery

  Read the full summary

  • 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)

  Rich Solar ALPHA 3 LITE 300Ah Battery

  Read the full summary

  • Scope: few Reddit threads name Rich Solar, and those found are complaints
  • Battery: an r/SolarDIY owner's new ALPHA 5 read 6.7 V instead of 48 V, and Rich Solar's technician had not returned his call after two days (August 2023)
  • Order: an r/SolarDIY buyer waited from March for an out-of-stock ground mount, then was told its price had risen from $180 to $699 and cancelled; the refund took months (May 2025)
• GoogleSOK SK12V280H 12V 280Ah Heated Battery: 7 (higher)Rich Solar ALPHA 3 LITE 300Ah Battery: 5

  The Rich Solar ALPHA 3 LITE 300Ah Battery reading covers the whole brand.

  SOK SK12V280H 12V 280Ah Heated Battery

  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

  Rich Solar ALPHA 3 LITE 300Ah Battery

  Read the full summary

  • Panels: DIY Solar Forum owners of Rich Solar 100 W panels reported them working as rated, one saying eight of them each pushed more than 100 W (August to September 2020)
  • Defects: an owner of 20 of the 100 W poly panels saw faint snail trails after a summer and found one with a broken diode wire (January 2021)
  • Controller: another found Rich Solar's MPPT controller OK but its setup and Bluetooth app in need of work (January 2021)
  • Warranty: a DIY Solar Forum owner reported Rich Solar cut its CIGS panel warranty from 5 years to 1 in 2021 (June 2026); an Escape Forum owner waited six weeks on a warranty claim (August 2024)
• YouTubeSOK SK12V280H 12V 280Ah Heated Battery: 8 (higher)Rich Solar ALPHA 3 LITE 300Ah Battery: 6

  The Rich Solar ALPHA 3 LITE 300Ah Battery reading covers the whole brand.

  SOK SK12V280H 12V 280Ah Heated Battery

  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

  Rich Solar ALPHA 3 LITE 300Ah Battery

  Read the full summary

  • Will Prowse: in a test of several panels a Rich Solar 200 W mono gave 157 W, 78.5 percent of rating, and a 100 W poly 88 W; he kept the poly first on his list for a small panel (May 2021, about 366,000 views)
  • Disclosure: Will Prowse states every video includes paid promotion or free product and some links are affiliate links
• AmazonSOK SK12V280H 12V 280Ah Heated Battery: 7Rich Solar ALPHA 3 LITE 300Ah Battery: 8 (higher)

  The SOK SK12V280H 12V 280Ah Heated Battery reading covers its product line; the Rich Solar ALPHA 3 LITE 300Ah Battery reading covers the whole brand.

  SOK SK12V280H 12V 280Ah Heated Battery

  Read the full summary

  • 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

  Rich Solar ALPHA 3 LITE 300Ah Battery

  Read the full summary

  • Seller: Rich Solar's Amazon US listings sit in a RICH SOLAR brand store sold and shipped by SUNRICH ENERGY
  • Panels: the 100 W 12 V panel family reads 4.7 from 1,326 ratings, 84 percent five-star and 2 percent one-star; the 200 W 12 V panel 4.6 from 519; the 200 W 24 V panel 4.3 from 252 (October 2026)
  • Controller: the BRAVO 40 MPPT controller reads 3.8 from 4 ratings (October 2026)