The BigBattery HUSKY 2 is a 5.12kWh LiFePO4 battery with Tier 1 cells, an IP65 casing, self-heating and an auto-balancing BMS, built for RVs, vans, boats and small off-grid systems.
Available configurations
Key features
- 5.12kWh LiFePO4
- Tier 1 LFP cells
- IP65 casing with anti-vibration shell
- Self-heating for winter charging
- CANBus and RS485
Specifications
| Brand | BigBattery |
|---|---|
| Capacity | 5.12kWh |
| Battery chemistry | LiFePO4 |
| Protection | IP65 |
| Self-heating | Yes |
| Ideal for | RVs, vans, boats and off-grid cabins |
| Condition | New |
Shipping and returns
Free shipping to addresses in the United States, delivered in 4 to 6 business days (1 to 2 business days to prepare the order plus 3 to 4 business days in transit). Free returns within 30 days of delivery; refunds are issued within 5 business days after the returned item is inspected.
Frequently asked questions
Can I replace my lead-acid battery with this one?
In most cases yes, but make sure your charger, converter and alternator charging support LiFePO4 charge settings.
Can I charge it below freezing?
Only self-heating models, or models with low-temperature protection that will wait until the cells are warm enough. Standard LiFePO4 should not be charged below 32°F.
How long does shipping take?
Orders ship free within the United States and arrive in 4 to 6 business days.


















