ECO-WORTHY Cubix100
#1 in Server rackFull review
A low-cost, UL-listed 5 kWh rack module for permitted indoor home backup. Pick a heated or low-temp model if it lives in an unheated space.
Amazon $889.99 ECO-WORTHY $889.99$889.99
The ECO-WORTHY Cubix100 is the better 48V solar battery overall, rated 4.7 to 4.5. The ECO-WORTHY Cubix100 leads on features. The ECO-WORTHY Cubix100 costs $169.01 less ($889.99 vs $1,059).
Ruixu RX-LFP48100
#4 in Server rackFull review
A UL 1973 certified 5 kWh rack module at a fair price for indoor home or cabin systems. Get the -H version if it lives somewhere that freezes.
Ruixu $1,059$1,059
Prices 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.
Which should you buy?
- Choose the ECO-WORTHY Cubix100 for features (inverter communication, app; no self-heating vs inverter communication; no self-heating).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every server rack 48V solar battery; a clear win is highlighted. How we rank explains each one.
| Factor weight | ECO-WORTHY Cubix100 | Ruixu RX-LFP48100 |
|---|---|---|
| Overall rating | 4.7/5 | 4.5/5 |
| Value 35% | 95 $174 per rated kWh | 87 $207 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% | 100 UL 1973, UL 9540 listed | 100 UL 1973, UL 9540A listed |
| Cycle life 10% | 60 6,000 cycles at 80% depth, maker rating | 60 6,000 cycles at 90% depth, maker rating |
| Features 10% | 70 inverter communication, app; no self-heating | 40 inverter communication; no self-heating |
Specifications
| ECO-WORTHY Cubix100 | Ruixu RX-LFP48100 | |
|---|---|---|
| Capacity | ||
| Case | Server rack (19-inch) | 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 | 4.9 kWh |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 6,000 at 80% depth | 6,000 at 90% depth |
| Power | ||
| Continuous discharge | 100 A | 100 A |
| Peak discharge | 120 A | 149 A |
| Max charge current | 100 A | 70 A |
| Modules in parallel | Up to 32 | Up to 32 |
| Safety and communication | ||
| UL 1973 | Yes | Yes |
| UL 9540A | Yes | Yes |
| UL 9540 | Yes | No |
| Communication | CAN, RS485, RS232 | CAN, RS485 |
| Works with inverters | Victron, Deye, Growatt, Lux Power, Sol-Ark, GoodWe, EG4, SRNE | Victron, SMA, Studer, Sol-Ark, Solis, Goodwe, Deye, Growatt, LuxPower, Schneider, Voltronic, MPP |
| Self-heating | No | No |
| App | Yes | No |
| Build | ||
| Display | No | - |
| Built-in breaker | Yes | - |
| Enclosure | - | IP20 |
| Dimensions | 22.09 x 19.02 x 5.63 in | 19.0 x 18.1 x 5.3 in |
| Weight | 103 lb | 103.6 lb |
| Warranty | 10 years | 10 years |
| Released | 2026-03 | 2023-07 |