For homeowners who want a single large, heated, outdoor-rated battery that passes inspection. Its UL 9540 listing and direct inverter communication make it an easy choice for permitted grid-tied and off-grid builds.
NAZ Solar Electric $3,550
An inexpensive wall-hung 5 kWh battery for indoor off-grid or backup systems. Pick the UL-listed Cubix100 if you need a permit.
- 5.1 kWhCapacity
- 100 AOutput
- 6,000Cycles
- NoUL 9540A
- 10 yearsWarranty
Price checked October 24, 2026. As an Amazon Associate we earn from qualifying purchases.
- Hangs on a wall, keeping floor space clear in a garage or utility room
- Bluetooth and WiFi app for checking charge from your phone
- Speaks Pylon, Victron, Deye and Growatt protocols for closed-loop inverter control
- Built-in fire-suppression aerosol
- No UL 1973 listing, which some inspectors and utilities require
- Won’t charge below freezing and must stay indoors
- Current batch is on presale, expected to ship around Nov 20
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its case. How we rank explains each one.
Specifications
| Model number | ECO-LFP48100WM02 |
|---|---|
| Capacity | |
| Case | Wall or floor mount |
| Nominal voltage | 51.2 V |
| Capacity | 100 Ah |
| Energy | 5.1 kWh |
| Usable energy | 5.1 kWh |
| Chemistry | LiFePO4 |
| Cycle life | 6,000 at 80% depth |
| Power | |
| Continuous discharge | 100 A |
| Max charge current | 100 A |
| Modules in parallel | Up to 32 |
| Safety and communication | |
| UL 1973 | No |
| UL 9540A | No |
| UL 9540 | No |
| Communication | CAN, RS485, RS232 |
| Works with inverters | Pylon, Growatt, Deye, Victron, SRNE, LuxPower, GoodWe |
| Self-heating | No |
| App | Yes |
| Build | |
| Display | No |
| Built-in breaker | Yes |
| Dimensions | 18.2 x 19.1 x 5.8 in |
| Weight | 97 lb |
| Warranty | 10 years |
| Released | 2026-03 |
Alternatives in this case
A tough 5 kWh module for off-grid cabins, boats and small systems that need an outdoor-rated case. Larger inverters need three or more to run at full power.
Current Connected $1,449An outdoor-rated 5 kWh battery for owners of a Growatt US hybrid inverter. Owners of other inverter brands get more for less from a rack module.
Amazon $1,547.55Compare
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