LiTime calls its 12V 100Ah Mini “the lightest 12V 100Ah LiFePO4 battery ever.” The company lists it at about 19 lb (8.6 kg) and 10.24 × 5.24 × 8.96 inches, which still gets you a full 1,280 Wh. LiTime’s own spec sheet puts the standard 12V 100Ah model at 24.25 lb and 13 × 6.77 × 8.43 inches. LiTime claims an energy density of 164.5 Wh per liter and 142.2 Wh per kilogram for the Mini. Here’s what the official spec sheet, FAQ and product pages say about what you get, where it fits best, and how it compares with the newer Xtra-Mini that LiTime now sells in the U.S.
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How this review was put together: it’s based on LiTime’s published specifications and FAQs as of Oct. 17, 2026. A hands-on capacity test with a load tester is planned and will be added here when it’s done. Until then, every figure below is LiTime’s own, or a clearly labeled estimate.
Verdict up front
| What it does well | What to plan around |
|---|---|
| Full 100Ah / 1,280Wh in a case about the size of a Group 24 battery | No low-temperature charging protection on this version, so you need to keep it above freezing when charging |
| 100A continuous charge and discharge, 250A for 5 seconds | No Bluetooth monitoring; you’ll want a separate battery monitor |
| Can be installed in any orientation, per LiTime | Not for engine starting |
| IP65 case and a 5-year warranty | Sold through LiTime’s UK and AU stores; the U.S. store now carries the Xtra-Mini instead |
Full specifications
| Spec | LiTime 12V 100Ah Mini |
|---|---|
| Chemistry | LiFePO4 |
| Nominal voltage / capacity / energy | 12.8V / 100Ah / 1,280Wh |
| BMS | 100A |
| Max continuous output power | 1,280W |
| Max continuous charge / discharge current | 100A / 100A |
| Max discharge, 5 seconds | 250A |
| Charge method / voltage | CC/CV, 14.4V ± 0.2V |
| Recommended charge current | 20A (0.2C) |
| Charge temperature | 32°F to 122°F (spec table); FAQ says 32°F to 113°F |
| Discharge temperature | -4°F to 140°F |
| Storage temperature | 14°F to 122°F |
| Internal resistance | ≤40 mΩ |
| Expansion | Up to 4P4S (16 batteries, 20.48 kWh max) |
| Cycle life | 4,000 at 100% DOD; 6,000 at 80%; 15,000 at 60% |
| Terminals | M8 bolts |
| Size | 260 × 133 × 227.5 mm (10.24 × 5.24 × 8.96 in) |
| Weight | About 8.6 kg (19 lb) |
| Housing / protection | ABS / IP65 |
| Certifications | FCC, CE, RoHS, UN38.3 |
| Warranty | 5 years |
One discrepancy to know about: the Mini’s spec table lists charging up to 122°F (50°C), while LiTime’s FAQ for the same battery says 32°F to 113°F (45°C). Use the more conservative 113°F ceiling, especially if the battery sits in a hot engine bay or a closed trailer in summer.
How small is “Mini,” really?
All three batteries below have the same 1,280 Wh rating. LiTime’s figures, side by side:
| LiTime 12V 100Ah model | Size (in) | Volume (L, estimate) | Weight |
|---|---|---|---|
| Standard (Group 31 size) | 13 × 6.77 × 8.43 | ~12.2 | 24.25 lb |
| Mini | 10.24 × 5.24 × 8.96 | ~7.9 | ~19 lb |
| Xtra-Mini (Group 22NF size) | 9.02 × 5.43 × 8.19 | ~6.6 | 19.13 lb |
Volumes are my estimates from the outer dimensions. The Mini takes up about 35% less space than the standard model and weighs about 5 lb less. That’s the difference between a battery that needs its own compartment and one that fits under a van seat, inside a kayak hull or in a truck-bed toolbox. LiTime also says the Mini can be installed “in any direction,” which gives you more options for tight spots.
Charging it
LiTime recommends a 14.6V LiFePO4 charger with a charging voltage between 14.2V and 14.6V. Its FAQ gives two reference charge times:
| Charger current | LiTime’s charge time |
|---|---|
| 20A (0.2C) | About 5 hours to 100% |
| 50A (0.5C) | About 2 hours to around 97% |
A 20A charger is the sweet spot for most owners. It matches LiTime’s recommended current and finishes overnight. We’ve covered that pairing in our LiTime 12V 20A charger review. LiTime’s FAQ also says to connect the charger to the battery before plugging it into the wall, to avoid sparks, and to disconnect it once charging is done.
For other charging sources, LiTime says to use a DC-DC charger between an alternator and the battery, and an MPPT controller sized at 125% of the solar array’s maximum current. Its worked example is a 24V, 22A array that needs a 27.5A controller. Our new truck bed camper solar guide shows a compact build around a LiTime DC-DC charger with built-in MPPT.
Cold weather: the main thing to plan for
LiTime says plainly that the 12V 100Ah Mini “does not include low-temperature charging protection.” The battery will still power loads down to -4°F, but you shouldn’t charge it below 32°F. In practice:
- Fine for spring-to-fall camping, boats in warm water, and indoor or heated installs.
- For winter use, add a charger or controller with a temperature sensor that stops charging below freezing, or keep the battery inside the heated living space.
- If you camp in freezing weather regularly, the Xtra-Mini (below) or a self-heating model is the easier choice.
Mini vs Xtra-Mini
LiTime’s U.S. store now lists the 12V 100Ah Xtra-Mini, priced at $375.99 on Oct. 17, 2026. It builds on the Mini’s idea:
| Feature | 100Ah Mini | 100Ah Xtra-Mini |
|---|---|---|
| Size | 10.24 × 5.24 × 8.96 in | 9.02 × 5.43 × 8.19 in |
| Weight | ~19 lb | 19.13 lb |
| Short burst current | 250A for 5 s | 500A for 1 s |
| Bluetooth app | No | Yes (SOC, voltage, current, temperature, cycle count) |
| Low-temp charge cutoff | No | Yes: stops below 32°F, resumes at 41°F or above |
| Continuous current, cycles, warranty | 100A, 4,000 at 100% DOD, 5 years | Same |
One note on the Xtra-Mini: one of its FAQs gives 10.2 × 7.1 × 8.2 in and 19.77 lb, while the spec table says 9.02 × 5.43 × 8.19 in and 19.13 lb. Measure for the larger figure if your space is tight.
The Mini still makes sense if you can buy it in your region, don’t need an app, and charge only above freezing. Otherwise, the Xtra-Mini adds the two features most truck, van and boat owners would choose anyway.
See the LiTime 12V 100Ah Mini on LiTime’s UK store · See the LiTime 100Ah Xtra-Mini on Amazon or on LiTime’s U.S. store.
What 1,280 Wh runs (estimates)
| Load | Average draw | Approx. runtime on a full charge |
|---|---|---|
| Compact compressor fridge, hot weather (0.92 Ah/h, Dometic CFX3 25 listing) | ~11W | ~4.5 days |
| Trolling motor at 30A (example) | ~384W | ~3.3 hours |
| CPAP without heated humidifier (~40W, example) | ~40W | ~4 nights at 8 hours |
| LED lights + phone charging (~60 Wh/day, example) | n/a | ~3 weeks |
These assume about 100Ah usable, since LiTime rates 4,000 cycles at 100% depth of discharge. Inverter losses aren’t included. For AC loads, subtract roughly 10–15% (estimate).
Who it’s for
- Kayak and small-boat anglers who carry the battery by hand. A few pounds less makes a real difference on a launch ramp.
- Van and SUV campers who want to fit a battery under a seat or inside a drawer system without giving up capacity.
- Portable battery-box builders who need a 100Ah core that can be carried with one hand and laid on its side.
- Warm-climate owners, since the lack of cold-charge protection matters less where it rarely freezes.
Expanding later
LiTime lists up to 4P4S, meaning four in parallel and four in series, for up to 16 batteries and 20.48 kWh. Its general guidance for linking LiTime batteries is to use identical capacity and BMS ratings, the same brand, and batteries bought close together, ideally within a month. Two Minis in parallel give 200Ah at 12V. Four in series make a 48V bank. If you’re starting smaller, our LiTime 12V 50Ah review covers that capacity class.
Storage and care
- Store at about 50% state of charge, and top it back up to that level at least every three months, per LiTime.
- LiTime’s recommended storage environment is 50–95°F and 45–75% relative humidity.
- Disconnect loads during long storage so small parasitic draws don’t drain it.
FAQ
How much does the LiTime 12V 100Ah Mini weigh?
About 19 lb (8.6 kg), according to LiTime. That’s roughly 5 lb lighter than LiTime’s standard 12V 100Ah battery at 24.25 lb.
What are the LiTime 12V 100Ah Mini’s dimensions?
260 × 133 × 227.5 mm, or 10.24 × 5.24 × 8.96 inches.
Does the LiTime 100Ah Mini have Bluetooth or low-temperature protection?
No to both on this version. LiTime’s FAQ says it has no low-temperature charging protection. The newer Xtra-Mini adds Bluetooth and a low-temperature charging cutoff.
Can I use it as a starting battery?
No. LiTime says not to use it as a starter battery. It’s a deep-cycle battery for energy storage.
Can I mount it on its side?
Yes. LiTime says the Mini can be installed in any direction.
What charger should I use?
A 14.6V LiFePO4 charger. At LiTime’s recommended 20A, a full charge takes about 5 hours.
Bottom line
The LiTime 12V 100Ah Mini packs the same 1,280 Wh and 100A BMS as a full-size 100Ah battery into a case that’s about 35% smaller and 5 lb lighter. That makes it a strong fit for vans, kayaks, small boats and battery boxes where space matters most. Charge it only above freezing, or choose the Xtra-Mini if you want Bluetooth and a built-in cold-charge cutoff.