LiTime’s 24V 100Ah LiFePO4 battery stores 2.56kWh in one case, the same as two 12V 100Ah batteries wired in series, and LiTime says it weighs 45.85 lb. LiTime builds it around a 100A battery management system (BMS) and lists 4,000 to 15,000 cycles depending on depth of discharge, along with a 10-year service life. LiTime sells it for 24V RVs, trucks, trolling motors and off-grid systems, and it currently has three main versions. This review covers the specs, how it fits into a 24V system, runtime math and which version suits which build.
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Specs come from LiTime’s product pages for each version. I’ve used LiTime’s 12V 50Ah battery and its 12V 20A charger in earlier reviews. The runtime and sizing figures below are estimates unless I say otherwise.
LiTime 24V 100Ah at a glance
| Spec | LiTime 24V 100Ah (standard) |
|---|---|
| Chemistry | LiFePO4, automotive-grade cells |
| Nominal voltage | 25.6V |
| Capacity / energy | 100Ah / 2,560Wh |
| BMS | 100A, with overcharge, over-discharge, overcurrent, high-temperature and short-circuit protection |
| Continuous power (BMS limit) | About 2,560W (100A × 25.6V) |
| Cycle life | 4,000–15,000 cycles (LiTime figure, depends on depth of discharge) |
| Self-discharge | 3% (LiTime figure) |
| Charge temperature | 0°C to 50°C (32°F to 122°F) |
| Discharge temperature | -20°C to 60°C (-4°F to 140°F) |
| Recommended charger | 29.2V 20A LiFePO4 charger (about 5 hours to full, per LiTime) |
| Expansion | Up to 4P2S: 48V, 400Ah, 20.48kWh |
| Size | 20.95 × 8.15 × 8.5 in |
| Weight | 45.85 lb (energy density 55.83Wh/lb, per LiTime) |
| Standards | Installed to ABYC E-13; complies with IEC 62619 (per LiTime) |
Why choose a single 24V battery?
For a 24V system, you could wire two 12V 100Ah batteries in series. A single 24V battery gives you the same 2.56kWh in one case, with one BMS and fewer cables. Both paths work, and my series vs parallel wiring guide walks through the trade-offs.
Running at 24V also halves the current for the same power. A 2,000W inverter pulls roughly 93A from a 24V bank (2,000W ÷ 24V ÷ 0.9 efficiency, estimate), compared with about 185A at 12V. Lower current means thinner cables, smaller fuses and less heat. My 12V vs 24V vs 48V guide puts 24V as the sweet spot for roughly 1,500–3,000W systems, which is exactly where one or two of these batteries fit.
The three versions compared
LiTime sells the 24V 100Ah in several cases. The standard version has no Bluetooth. The Bluetooth version adds an app and cold-weather protection. The Group 31 version packs the same energy into a much smaller case.
| Feature | Standard | Bluetooth | Group 31 Bluetooth |
|---|---|---|---|
| Energy | 2,560Wh | 2,560Wh | 2,560Wh |
| Size (in) | 20.95 × 8.15 × 8.5 | 20.94 × 8.15 × 8.5 | 13.11 × 6.93 × 9.45 |
| Weight | 45.85 lb | 43.67 lb | Not listed on page |
| Bluetooth app | No | Yes (Bluetooth 5.0) | Yes (Bluetooth 5.0) |
| Low-temperature protection | Charge range 0–50°C | Stops charging below 32°F | Low-temp cut-off for charge and discharge |
| Water/dust rating | Not listed on page | IP65 | IP65 |
| Cycle rating | 4,000–15,000 | 4,000+ at 100% DOD | 6,000+ at 100% DOD |
| LiTime price (Oct 2026) | $519.99 | $539.99 | $689.99 |
For most people, the Bluetooth version is worth the $20 premium. Being able to read state of charge and cell temperature on your phone makes a big difference, and the low-temperature charging cut-off protects the cells in a cold van or boat. Pick the Group 31 version if your battery tray is tight. LiTime says it’s up to 40.8% smaller than a traditional 24V 100Ah battery, with an energy density of 187.9Wh/L. LiTime also sells a “Smart ComFlex” 24V 100Ah with Victron communication, which suits builds centred on a Victron GX device.
Building a 24V system around it
Here’s a simple one-battery 24V layout, the kind I’d use for a truck sleeper or a small off-grid cabin. Part sizes are typical examples, not a wiring plan for your build.
| Component | Example sizing | Why |
|---|---|---|
| Battery | 1 × LiTime 24V 100Ah | 2.56kWh, 100A BMS |
| Main fuse | Sized to the cable and below the BMS limit (often 100–125A class) | Protects the cable from the battery |
| Inverter | 24V, up to about 2,000W continuous | Keeps current near or below the 100A BMS limit |
| Solar controller | 24V MPPT sized to the array (for example 40A for about 1,000W) | Charges at 29.2V |
| Shore charger | 29.2V 20A LiFePO4 charger | About 5 hours to full, per LiTime |
| Cables | Sized for the fuse rating and run length | See my wire gauge chart |
For fusing, my fuse sizing guide covers the rule of thumb: the fuse protects the wire, so size it to the cable’s ampacity, not the device.
LiTime also lists a limit worth noting. The battery isn’t meant for golf carts, engine starting or anything that draws a big current spike on startup. It’s a deep-cycle battery. Use it for steady loads and inverters, not for cranking an engine.
How long will it run?
Here I assume you use 100% of the 2,560Wh, as LiTime’s 100% depth-of-discharge rating allows, with about 90% inverter efficiency for AC loads. These are estimates.
| Load | Approx. draw | Runtime on one battery (estimate) |
|---|---|---|
| 24V compressor fridge | ~35Wh per hour average | ~73 hours |
| LED lights + fan + phones | ~50W | ~51 hours |
| Laptop and monitor (AC) | ~120W | ~19 hours |
| 24V truck parking AC | ~600W while running | ~4 hours continuous; longer as it cycles |
| Microwave (AC) | ~1,000W | ~2.3 hours of cooking |
For other loads, divide 2,560 by the watts (and multiply by 0.9 for AC). My 100Ah battery runtime guide has a fuller calculator for 12V. A 24V 100Ah has twice the watt-hours, so double those figures.
Scaling up: 4P2S
LiTime allows up to four in parallel and two in series (4P2S). Eight batteries make a 48V, 400Ah bank of 20.48kWh, which is enough for serious home backup. In practice, most RV and truck builds stop at one or two in parallel: 24V 200Ah, or 5.12kWh. When you parallel, match batteries of the same age and charge them to full first, as with any LiFePO4 bank. If you’re weighing cycle life against depth of discharge, my depth of discharge guide explains why LiFePO4 handles deep cycling so well.
Charging it
- Shore power: LiTime recommends its 29.2V 20A charger, about 5 hours from empty to full.
- Solar: Any 24V MPPT with a LiFePO4 profile. A 600W array might add about 2.4kWh on a day with four good sun hours (estimate), nearly a full battery.
- Alternator: Use a DC-DC charger with 24V LiFePO4 output, especially on a 12V vehicle. Don’t connect it straight to the alternator.
- Generator: Run the AC charger from the generator. The Group 31 version supports charging at up to 1C, per LiTime.
LiFePO4 vs a 24V lead-acid bank
Plenty of 24V trucks and older RVs still run two 12V AGM or flooded batteries in series. Here’s how one LiTime 24V 100Ah compares with that setup. Lead-acid figures are typical ranges, not a specific product.
| Factor | LiTime 24V 100Ah | 2 × 12V 100Ah AGM in series (typical) |
|---|---|---|
| Usable energy | ~2,560Wh (100% DOD rating) | ~1,200Wh at 50% DOD |
| Weight | 45.85 lb | ~120–130 lb for the pair |
| Cycle life | 4,000+ cycles | Typically a few hundred cycles at 50% DOD |
| Voltage under load | Stays flat near 25.6V | Sags as it discharges |
| Charging | 29.2V, accepts high current | Slow absorption stage to finish |
The usable-energy gap is the one that changes how you live with it. One lithium battery gives roughly twice the usable watt-hours of a 24V AGM pair at about a third of the weight. If you’re working in amp-hours and get muddled, my amp-hours vs watt-hours guide converts between the two.
My install checklist
- Measure the tray. The standard case is almost 21 inches long; the Group 31 is about 13.
- Charge the new battery to full before connecting it to anything else.
- Set your MPPT, inverter-charger and DC-DC charger to a LiFePO4 profile with a 29.2V maximum.
- Fit a main fuse as close to the positive terminal as practical.
- Torque the terminals to the value in LiTime’s manual and check them again after the first trip.
- On the Bluetooth versions, pair the LiTime app and check that state of charge reads 100%.
Who it’s for
The LiTime 24V 100Ah suits truck drivers who want a parking cooler, RV owners building a 24V house system, and small off-grid sheds and cabins. LiTime also markets it for 70–100 lb trolling motors. It’s less suited to 12V-only vans, where two 12V batteries in parallel or a single 12V 200Ah makes more sense, and to anything that needs engine-cranking current.
LiTime 24V 100Ah (standard) on Amazon · LiTime 24V 100Ah Bluetooth on Amazon · Group 31 version at LiTime
FAQ
How many watt-hours is a 24V 100Ah battery?
2,560Wh. Multiply 25.6V nominal by 100Ah. That’s the same as two 12V 100Ah LiFePO4 batteries.
How much does the LiTime 24V 100Ah weigh?
LiTime lists 45.85 lb for the standard version and 43.67 lb for the Bluetooth version.
What size inverter can it run?
The 100A BMS caps continuous output at about 2,560W. A 24V inverter of up to about 2,000W continuous leaves some headroom. For bigger inverters, add a second battery in parallel.
What charger do I need?
A 29.2V LiFePO4 charger. LiTime’s 20A model charges it in about 5 hours.
Can I charge it below freezing?
No. The charge range is 0–50°C. The Bluetooth and Group 31 versions have automatic low-temperature charge cut-offs, which is why I’d choose them for cold climates.
Can I build a 48V bank with these?
Yes. LiTime supports up to 4P2S: two in series for 48V, and up to four strings in parallel, for 20.48kWh.
Is one 24V battery better than two 12V batteries in series?
It’s simpler, with one BMS, fewer connections and less to balance. Two 12V batteries can be easier to lift and fit. On energy, they’re the same.