LiFePO4 batteries from a dozen brands all look similar on a spec sheet. What separates them is BMS quality, warranty support, and what happens when something goes wrong. Here's the honest breakdown.
Top picks
Battle Born 100Ah ($1,050) — Premium choice
The gold standard for van builds. Battle Born batteries have:
- A proven, conservative BMS that rarely trips on legitimate loads
- 10-year warranty with US-based customer support (Reno, Nevada)
- Drop-in Group 27 form factor (fits most battery boxes)
- 100A continuous discharge, 200A peak
Why the premium is worth it: Battle Born's warranty service is real — they replace batteries that fail, no runaround. For a full-time van lifer where the battery is mission-critical, this matters. The higher price is partly a warranty and support premium.
Best for: Full-time van life, builds where failure is unacceptable, high-discharge applications.
LiTime 100Ah ($280) — Best value
LiTime (formerly Ampere Time) is the most popular "value" LiFePO4 for van builds and earned its reputation:
- Consistent BMS performance in community testing
- 5-year warranty with responsive US customer support
- 100A continuous discharge, 200A peak
- Widely available on Amazon with fast shipping
At ~$280 vs Battle Born's $1,050, you're getting 80% of the battery for 25% of the price. The BMS is less conservative and the warranty is shorter, but for most van builders it's an excellent choice.
Best for: Budget-conscious builders, first builds, weekend use.
SOK 100Ah ($320) — Community favorite
SOK has a strong following in the van and RV community:
- Marine-grade build quality, IP65-rated
- Bluetooth monitoring built in (some models)
- 200A BMS — handles high-discharge loads well
- 5-year warranty
Priced between LiTime and Battle Born. The IP65 rating and Bluetooth monitoring add genuine value for van applications.
Best for: Builders who want Bluetooth monitoring and durable construction without the Battle Born price.
Renogy 100Ah LiFePO4 ($350) — Ecosystem play
Renogy's lithium batteries integrate with their solar and charging ecosystem via Bluetooth and can be managed alongside Renogy's MPPT controllers and DC-DC chargers:
- 100A continuous discharge
- Bluetooth monitoring
- Integrates with Renogy BT-2 module and app
Worth considering if your entire system is Renogy — the integration is convenient. Priced similarly to SOK.
Chins / Weize 100Ah ($200–$230) — True budget
These no-frills options work and have positive reviews, but:
- Shorter warranties (1–2 years)
- Less rigorous BMS protection
- Limited US customer support
Fine for a weekend build where the consequence of failure is inconvenience rather than being stranded.
200Ah options
| Brand | 200Ah price | Notes |
|---|---|---|
| Battle Born | ~$2,100 (2× 100Ah) | Two batteries in parallel |
| LiTime | ~$480 | Single 200Ah unit; good value |
| SOK | ~$580 | Single 200Ah with BT |
| Renogy | ~$650 | Single 200Ah with BT |
Related
Frequently Asked Questions
Keep the build moving
Make the next build decision easier.
Get practical diagrams, calculator updates and honest product comparisons in your inbox.
Roam Wired
Roam Wired turns campervan research into practical plans. We publish transparent guidance, a free electrical design tool and marketplace resources for UK and US van builders.
About our approach