Battery buying guide
Revolution 12V 400Ah lithium battery
A single 400 Ah case for a liveaboard that would rather commission one battery than four.
Specifications and model checks
| Nameplate capacity | 400 Ah at 12 V |
| Usable capacity | 320 Ah at 80% depth of discharge |
| Chemistry | LiFePO4 (lithium iron phosphate) |
| Pack weight | 46 kg |
| BMS continuous discharge | 200 A |
| Claimed cycle life | 2,000 cycles at 80% DoD |
| Warranty | 4 years |
| Bluetooth monitoring | Yes |
| Low-temperature charge cut-off | Yes |
| Our bench status | claimed |
This is a brand-and-capacity planning profile, not a verified SKU specification. Confirm the exact model, current datasheet, permitted boat application and warranty with the supplier. Boat Battery has not independently bench-tested this battery. See how we test.
Suitable boat applications
Liveaboards and large houseboats with a purpose-built compartment.
Compatibility limits to check
You want to keep sailing when one BMS disconnects.
For the brand as a whole — support network, documentation and where it falls short — read the Revolution review.
Before buying a 12V 400Ah Revolution battery
Ask for the exact model code and installation manual. Confirm the case fits through the compartment opening with clearance for terminals, cable bends and restraint. Check permitted mounting orientation and environmental limits; capacity alone does not establish suitability for a boat.
Match the battery’s continuous and surge discharge limits to your largest loads, then verify the combined charging current and the response to a BMS disconnect. For multiple packs, obtain the manufacturer’s series or parallel instructions before designing the bank.
On these boats