We stock eight SOK Battery LiFePO4 batteries, in five capacities at 12V and 24V. Picking one comes down to four questions: how much energy you use, whether the battery ever charges below freezing, whether it needs a sealed case, and whether your system is 12V, 24V or built around Victron gear. This guide lays out the eight models from SOK's own pages and brochure, then works through sizing.
The eight SOK batteries at a glance
| Model | Voltage / capacity | Usable energy (our estimate) | Heater | Case | Max charge / continuous discharge (SOK) | Weight (SOK) |
|---|---|---|---|---|---|---|
| SK12V100PC | 12V 100Ah | About 1,152 Wh | No | Clear sealed plastic, IP65 | 70A / 100A | 24.7 lb |
| SK12V100H | 12V 100Ah | About 1,152 Wh | Yes | Metal, IP50 | 70A / 100A* | 27 lb |
| SK12V206H | 12V 206Ah | About 2,373 Wh | Yes | Metal, IP50 | 70A / 150A* | 48 lb |
| SK12V206PH | 12V 206Ah | About 2,373 Wh | Yes | Sealed plastic, IP65 | 70A / 150A* | 48 lb |
| SK12V280H | 12V 280Ah | About 3,226 Wh | Yes | Aluminum, IP50 | 120A / 200A | 73 lb |
| SK12V314PH | 12V 314Ah, Victron CAN | About 3,617 Wh | Yes | ABS, IP67 | 200A / 200A | 67 lb |
| SK24V100 | 24V 100Ah | About 2,304 Wh | No | Metal | 70A / 100A | 48 lb |
| SK24V150PH | 24V 150Ah, Victron CAN | About 3,456 Wh | Yes | PC+ABS, IP67 | 200A / 200A | 70 lb |
Usable energy is our estimate: amp-hours x 12.8V (or 25.6V for 24V) x 0.9. All eight have Bluetooth monitoring. *SOK's brochure gives the continuous discharge figures shown; SOK's product pages for the 100H, 206H and 206PH list 170A. If your inverter needs the higher number, ask us to confirm with SOK before you order.
100Ah: the clear case or the heated metal case
Both 100Ah models hold the same energy. The difference is where they live.
- The SK12V100PC has a clear, sealed IP65 plastic case and no heater. SOK's brochure puts its charge range at 32°F to 140°F, so it suits a battery that stays above freezing when it charges: inside the living space, or a rig used in warm months.
- The SK12V100H has a heater pad. SOK says it can safely charge down to -4°F from a standard or solar charger, and that the pad draws power from the charger, not the cells. Its metal case is IP50, so keep it dry.
At 10.24 x 6.69 x 8.27 in, the 100PC is the smaller of the two. The 100H measures 10.6 x 7.9 x 7.9 in. Measure your tray against those numbers, and see our Group 24 vs 27 vs 31 guide for how battery boxes are sized.
206Ah: one battery in place of two 100Ah
One 206Ah battery holds slightly more than two 100Ah batteries in parallel, with one set of terminals and one Bluetooth connection. The SK12V206H uses SOK's metal IP50 case. The SK12V206PH puts the same capacity in a sealed IP65 plastic case, and SOK markets it as marine grade. Both have a heater. If you are choosing between those two, our 206Ah sealed vs metal case guide compares them line by line.
280Ah and 314Ah: the big single batteries
The SK12V280H is SOK's aluminum-case 280Ah. It takes up to 120A of charge and gives 200A continuous, with a heater pad and Bluetooth. The SK12V314PH holds more energy and charges faster, up to 200A per SOK. It is also the only 12V SOK we stock that talks to Victron over CAN. SOK adds an IP67 case, a gas-aerosol fire suppressor, an on/off switch, and a design meant to comply with ABYC E-13. It is longer, though: 17.1 in against 13.07 in for the 280H. If you run a Victron Cerbo GX or MultiPlus, read our SOK Victron CAN guide first.
12V or 24V?
Match the battery to the system you already have. Most travel trailers and fifth wheels are 12V. Bigger inverters, some vans, trucks and boats run 24V because the same power needs half the current. Our estimate for a 2,000 W load: about 167 A at 12V (2,000 ÷ 12) and about 83 A at 24V (2,000 ÷ 24). Lower current means thinner cable and smaller fuses. Our 12V vs 24V vs 48V guide covers the trade-offs.
- The SK24V100 is a 24V battery with no heater. SOK lists its charge range as 32°F to 113°F, and up to 2 can go in series for 48V.
- The SK24V150PH is the 24V Victron CAN model, with the same IP67, heater and fire-suppression features as the 314PH. SOK also lists alarm and relay outputs. Up to 2 in series make 48V, and up to 10 can run in parallel.
You can also build 24V from two 12V SOK batteries in series. SOK's pages for the SK12V100H, 206H and 280H say not to exceed 4 in series and to add a battery voltage balancer. For the 206PH, SOK says the batteries should be at the same state of charge before you connect them in series.
How many SOK batteries do you need?
Work it out from what you use, not from the battery size. The steps below give estimates; real use varies with weather, inverter losses and habits.
- Add up a day's use in watt-hours. Multiply each load's watts by its hours. For example, a 12V fridge averaging 60 W for 24 hours uses 1,440 Wh. Lights, a fan, phones and a water pump might add a few hundred more.
- Multiply by the days you want to go without charging. Say you use 1,500 Wh a day and want two days of reserve: that is 3,000 Wh usable.
- Divide by usable energy per battery. 3,000 Wh is a little under one SK12V280H (about 3,226 Wh) or one SK12V314PH (about 3,617 Wh). It is also about three 100Ah batteries (3 x 1,152 = 3,456 Wh) or two 206Ah (about 4,746 Wh).
- Check the current. If an inverter pulls more than one battery's continuous rating (100A on the 100Ah models), use a bigger battery or several in parallel.
Solar to refill 1,500 Wh a day, as an estimate: 1,500 ÷ (4 to 5 sun hours x 0.75) = about 400 to 500 W of panels. For more worked examples, see how big a lithium battery your RV needs and how big a battery bank you need for RV solar.
Things that apply to every SOK
- Serviceable. SOK markets its batteries as user serviceable. The product pages for the metal-case models, the 206PH and the 24V100 describe a detachable cover with a replaceable BMS and cells.
- Warranty. SOK's pages state 7 years for the 100H, 206H, 206PH, 280H and 24V100, and 5 years on the 100PC page. The 314PH and 24V150PH pages give no term in their text; SOK's site footer says "7 Years Limited Warranty". Confirm the term for your model with us before you order.
- Cycle life. SOK's figures range from at least 3,000 cycles (100PC) to up to 15,000 (314PH and 24V150PH). These are SOK's claims.
- Charger. Use a LiFePO4 charge profile set to the model's figures. SOK's recommended charge voltage varies: 14.4V to 14.6V for the 206Ah models in SOK's brochure, 14.6V on the 280H, 13.8V on the 314PH page and 28.8V to 29.2V on the SK24V100. Check the spec sheet for yours. See our RV lithium buying guide for the converter and charger side of an upgrade.
- Shipping. Lithium batteries ship to the contiguous US (lower 48) only.
See the whole range on the SOK Battery collection page.
FAQ
Which SOK battery is the closest drop-in for a single lead-acid house battery?
The 100Ah models. The SK12V100PC is 10.24 x 6.69 x 8.27 in and the SK12V100H is 10.6 x 7.9 x 7.9 in. Measure your box first.
Is one 206Ah better than two 100Ah?
It holds slightly more energy, has one Bluetooth connection, and needs no parallel cabling. Two 100Ah batteries are easier to lift (24.7 to 27 lb each against 48 lb) and fit split spaces.
Do I need the Victron CAN model?
Only if you run Victron gear and want the battery to report to it over CAN. Otherwise the heated SK12V280H gives similar energy without it (about 3,226 Wh usable against about 3,617 Wh, by our estimate).
Can I mix SOK models in one bank?
SOK's pages don't cover mixing models. A common rule is to use the same model, at the same state of charge, in one bank. Ask us before you mix.