An inexpensive wall-hung 5 kWh battery for indoor off-grid or backup systems. Pick the UL-listed Cubix100 if you need a permit.
ECO-WORTHY $869.99The ECO-WORTHY Wallbank S100 rates 4.2 among wall and floor mount 48V solar batterys; the ECO-WORTHY Cubix100 Pro rates 4.1 among server rack ones. The ECO-WORTHY Wallbank S100 costs $230 less ($869.99 vs $1,099.99).

A cold-tolerant 5 kWh rack module with a screen, for off-grid builds in unheated spaces. Choose the Cubix100 instead if your permit needs a UL listing.
Amazon $1,099.99 ECO-WORTHY $1,099.99Prices were last checked October 24, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
These two sit in different case classes (wall and floor mount and server rack), and each is scored against the reference points for its own class, so a rating says how well each does among its own case peers. How we rank explains each factor.
| Factor weight | ECO-WORTHY Wallbank S100 | ECO-WORTHY Cubix100 Pro |
|---|---|---|
| Overall rating | 4.2/5 | 4.1/5 |
| Value 35% | 96 $170 per rated kWh | 86 $215 per rated kWh |
| Output 15% | 100 100 A continuous (about 5.1 kW) | 100 100 A continuous (about 5.1 kW) |
| Warranty 15% | 100 10-year warranty | 100 10-year warranty |
| Safety listing 15% | 0 no UL listing | 0 no UL listing |
| Cycle life 10% | 60 6,000 cycles at 80% depth, maker rating | 60 6,000 cycles at 80% depth, maker rating |
| Features 10% | 70 inverter communication, app; no self-heating | 70 inverter communication, app; no self-heating |
Specifications
| ECO-WORTHY Wallbank S100 | ECO-WORTHY Cubix100 Pro | |
|---|---|---|
| Capacity | ||
| Case | Wall or floor mount | Server rack (19-inch) |
| Nominal voltage | 51.2 V | 51.2 V |
| Capacity | 100 Ah | 100 Ah |
| Energy | 5.1 kWh | 5.1 kWh |
| Usable energy | 5.1 kWh | 5.1 kWh |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 6,000 at 80% depth | 6,000 at 80% depth |
| Power | ||
| Continuous discharge | 100 A | 100 A |
| Peak discharge | - | 120 A |
| Max charge current | 100 A | 100 A |
| Modules in parallel | Up to 32 | Up to 32 |
| Safety and communication | ||
| UL 1973 | No | No |
| UL 9540A | No | No |
| UL 9540 | No | No |
| Communication | CAN, RS485, RS232 | CAN, RS485, RS232 |
| Works with inverters | Pylon, Growatt, Deye, Victron, SRNE, LuxPower, GoodWe | EG4, Sol-Ark, Deye, Victron, Growatt |
| Self-heating | No | No |
| App | Yes | Yes |
| Build | ||
| Display | No | Yes |
| Built-in breaker | Yes | Yes |
| Dimensions | 18.2 x 19.1 x 5.8 in | 22.09 x 19.02 x 6.06 in |
| Weight | 97 lb | 105 lb |
| Warranty | 10 years | 10 years |
| Released | 2026-03 | 2026-02 |