This kit pairs two BigBattery HUSKY 2 48V battery modules with a Victron 48V MultiPlus-II 120V 5000W inverter/charger. It's built as a starting point for off-grid power, RV installs, or home backup — the batteries store the energy, the Victron unit converts it to usable AC power and manages charging.
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 Combination Matters
Battery chemistry and inverter selection have to be matched carefully — an undersized inverter or an incompatible charge algorithm shortens the life of a lithium bank fast. This kit bundles a 48V LiFePO4 battery pair (HUSKY 2, x2) with a Victron MultiPlus-II inverter/charger rated for 120V output at 5000W. That pairing gives you a defined power envelope: know your total stored energy (kWh) and your inverter's continuous wattage, and you know what loads you can run and for how long.
[NEEDS VERIFICATION]: The manufacturer did not provide individual HUSKY 2 Ah/Wh capacity, cycle life, BMS continuous/peak discharge amperage, cold-weather charging protection status, terminal type, or physical dimensions/weight in the source data for this listing. These specs live on the HUSKY 2 product page and in the Resources tab — check there before finalizing your system design.
Battery Characteristics
- Chemistry: LiFePO4 (Lithium Iron Phosphate) — per manufacturer designation "HUSKY 2"
- Nominal system voltage: 48V
- Configuration in this kit: 2x HUSKY 2 battery units
- Combined stated system energy: 5.12kWh (per listing title)
Wiring & Configuration Limits (Series/Parallel)
This kit ships as a defined 2-unit HUSKY 2 pairing at 48V nominal. The source data does not specify additional series/parallel expansion limits beyond this 2x configuration. Do not add third-party battery modules or mix battery ages/brands into this bank — verify expansion limits against the HUSKY 2 manufacturer documentation in the Resources tab before adding capacity.
The Victron MultiPlus-II in this kit is rated 120V AC output, 5000W. Confirm your total connected load against this wattage rating before wiring — the source data does not include separate max continuous/surge amperage figures for the inverter beyond the 5000W rating.
Pro-Installer Tip
Series/parallel mismatches on lithium banks are one of the most common causes of premature BMS lockout. Before you connect a second HUSKY 2 unit to this bank, confirm both units are the same firmware/age and were charged to a similar state of charge — connecting a fresh module to a partially cycled one invites cell imbalance across the pack. Use a shunt-based battery monitor (Victron's Cerbo GX, referenced in this kit's accessory imagery, is built for this) to track voltage and current draw across both HUSKY 2 units independently during the first few cycles. LiFePO4 chemistry supports 80-100% depth of discharge, but confirm the specific DoD rating and cycle life figures for HUSKY 2 in the Resources tab — they were not included in this listing's source data.
Key Benefits
- LiFePO4 chemistry: no lead-acid maintenance, no acid spills, no equalization charging required.
- Modular 2x HUSKY 2 pairing gives a defined 5.12kWh starting energy bank for off-grid, RV, or backup use.
- Victron MultiPlus-II 5000W inverter/charger combines inversion and battery charging in one unit, reducing separate component count.
- Victron Cerbo GX and COMM cable accessories (pictured) support system monitoring and communication between battery and inverter.
Technical Table
| Spec | Value |
|---|---|
| System Voltage | 48V |
| Chemistry | LiFePO4 |
| Battery Configuration | 2x HUSKY 2 units |
| Total Energy | 5.12kWh |
| Inverter/Charger | Victron MultiPlus-II 48V, 120V AC output, 5000W |
| Primary SKU | K0138-V |
| Ah Capacity | [NEEDS VERIFICATION] |
| BMS Max Continuous Discharge (A) | [NEEDS VERIFICATION] |
| BMS Peak Discharge (A) | [NEEDS VERIFICATION] |
| Cycle Life | [NEEDS VERIFICATION] |
| Operating Temp Range | [NEEDS VERIFICATION] |
| Cold-Weather Charging Protection | [NEEDS VERIFICATION] |
| Terminal Type | [NEEDS VERIFICATION] |
| Dimensions | [NEEDS VERIFICATION] |
| Weight | [NEEDS VERIFICATION] |
Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.
Compatibility & Fitment
This kit is designed to be used as a matched set: 2x HUSKY 2 48V battery units wired with the included Victron 48V MultiPlus-II 120V 5000W inverter/charger. It is intended for off-grid, RV, and home backup power applications.
It is NOT a starter/cranking battery system and is NOT designed for automotive engine starting. Standard lead-acid chargers are NOT recommended for this LiFePO4 system — use only chargers and charge profiles compatible with LiFePO4 chemistry (the Victron MultiPlus-II in this kit is intended to serve this function). Do not mix this HUSKY 2 pairing with other battery brands, chemistries, or age-mismatched lithium modules. Do not exceed the Victron MultiPlus-II's 5000W continuous rating with connected loads.
FAQ
Q: What chemistry is the HUSKY 2 battery?
A: LiFePO4 (Lithium Iron Phosphate).
Q: How many battery units are included in this kit?
A: Two HUSKY 2 48V battery units, plus one Victron 48V MultiPlus-II 120V 5000W inverter/charger.
Q: What is the total energy capacity of this kit?
A: 5.12kWh, as stated in the product listing.
Q: Can I add more battery units to expand this system later?
A: The source data does not specify series/parallel expansion limits beyond this 2x pairing. Confirm expansion limits against the HUSKY 2 manufacturer documentation in the Resources tab before adding capacity.
Q: Can this system be used to start an engine?
A: No. This is an off-grid/backup energy storage and inverter kit, not a starter battery system.
Warranty & Support
Warranty terms for the HUSKY 2 batteries and the Victron MultiPlus-II inverter/charger are not included in the source data for this listing. Refer to the "Resources (System Manuals and Warranty)" Tab above for manufacturer warranty documents. If you have questions about this kit before you order, ask us — we always reply back.
