The HUSKY 2 INV is a 12V LiFePO4 battery rated at 400Ah, storing 5.12kWh of usable energy. It's built for RVs, marine systems, and small off-grid setups, and this INV variant adds inverter communications for systems that support it.
Note: If you would like to review the manufacturer Product Specifications, Warranty, Brochure, etc., for this system, please refer to the "Resources (System Manuals and Warranty)" Tab above on this page.
Why This Matters (Field Perspective)
A 400Ah 12V LiFePO4 battery rated at 5.12kWh gives you a clear number to plan around: 5,120 watt-hours of usable energy at the pack's nominal voltage. That number matters more than Ah alone, because it lets you size your loads honestly — run a 500W load for roughly ten hours, or a 100W load for roughly two days, before you need to recharge. LiFePO4 chemistry also tolerates deeper discharge than lead-acid without the same cycle-life penalty, which is the core reason this class of battery has become the standard lead-acid replacement in RVs, marine systems, and off-grid cabins.
The manufacturer identifies Tier 1 LFP cells, an IP65-rated casing, self-heating capability, and an onboard BMS as the core build features. Those four items — cell quality, ingress protection, cold-weather heating, and battery management — are the ones that determine whether a lithium battery survives years of vibration, moisture, and winter temperature swings in a vehicle or vessel.
Battery Characteristics
- Chemistry: LiFePO4 (Lithium Iron Phosphate)
- Nominal Voltage: 12V
- Capacity: 400Ah / 5.12kWh
- Enclosure: IP65-rated casing
- Cold Weather Protection: Self-heating function included
- Management: Onboard BMS with inverter communications (INV variant)
Wiring & Configuration Limits
Series and parallel wiring limits (maximum number in series, maximum number in parallel) for this model are [NEEDS VERIFICATION]. Confirm exact expansion limits against the manufacturer documentation before designing a multi-battery bank.
Do not mix this battery with lead-acid, AGM, or Gel batteries in the same bank. Do not mix batteries of different ages or cycle counts in series or parallel strings — imbalance between cells and packs shortens the life of the whole bank.
Pro-Installer Tip
Series and parallel expansion on lithium packs isn't a matter of "more is better" — every BMS has a hard limit on how many packs it can safely balance together, and exceeding it invites cell imbalance that shows up months later as a sudden capacity drop. Confirm the documented series/parallel limit for this model before wiring a bank, and use a shunt-based battery monitor to track pack-to-pack voltage drift over time rather than relying on a single dashboard voltage reading. LiFePO4 chemistry supports deep discharge, typically in the 80-100% DoD range, but that range only holds if the BMS is allowed to do its job — don't bypass it, and don't charge below freezing unless the self-heating function is active and confirmed working.
Key Benefits
- 5.12kWh usable energy from a 12V, 400Ah pack
- LiFePO4 chemistry supports deeper routine discharge than lead-acid equivalents
- IP65 casing for exposure to dust and moisture in marine and RV environments
- Self-heating function addresses cold-weather charging risk
- Inverter communications (INV) for compatible inverter systems
Technical Table
| Spec | Value |
|---|---|
| Voltage | 12V |
| Capacity | 400Ah |
| Energy | 5.12kWh |
| Chemistry | LiFePO4 |
| Enclosure Rating | IP65 |
| Cold Weather Protection | Self-heating |
| Cell Grade | Tier 1 LFP cells |
| Communications | Inverter comms (INV variant) |
| Max Continuous Discharge (A) | [NEEDS VERIFICATION] |
| Peak Discharge (A) | [NEEDS VERIFICATION] |
| Max Continuous Charge (A) | [NEEDS VERIFICATION] |
| Cycle Life | [NEEDS VERIFICATION] |
| Operating Temperature Range | [NEEDS VERIFICATION] |
| Dimensions | [NEEDS VERIFICATION] |
| Weight | [NEEDS VERIFICATION] |
| Terminal Type | [NEEDS VERIFICATION] |
Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.
Compatibility & Fitment
Designed for 12V applications including: lead-acid replacement, Class A/B/C RVs, camper vans, tow-behind trailers, marine systems, boats and yachts, commercial vehicles, food trucks, emergency backup, and light towers/signs.
This INV variant includes inverter communications and is intended for pairing with a compatible inverter system. It is NOT confirmed compatible with inverters that do not support this communications protocol — verify inverter compatibility before purchase.
NOT for use as a cranking/starter battery. Standard lead-acid chargers are NOT recommended for this battery — use a charger and charge profile designed for LiFePO4. Series/parallel expansion limits beyond what is documented for this model are NOT supported.
FAQ
- What chemistry does the HUSKY 2 INV battery use?
- LiFePO4 (Lithium Iron Phosphate).
- How much usable energy does this battery store?
- 5.12kWh, from a 12V, 400Ah pack.
- Does this battery include cold-weather charging protection?
- Yes. It includes a self-heating function for cold-weather operation.
- Can I use this battery as a starter/cranking battery?
- No. It is not designed for starter/cranking use.
- Can I charge this battery with a standard lead-acid charger?
- No. Standard lead-acid chargers are not recommended; use a charger designed for LiFePO4.
Warranty & Support
Warranty terms for this model are covered in the manufacturer documentation — see "Resources (System Manuals and Warranty)" Tab above for full details. If you have questions about sizing this battery for your build or wiring it into an existing bank, ask us before you order. We always reply back.
