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
4.6/5
The heated version of Ruixu’s UL 1973 rack module, for cold garages and cabins. It costs only about $40 more than the unheated one.
- 5.1 kWhCapacity
- 100 AOutput
- 6,000Cycles
- YesUL 9540A
- 10 yearsWarranty
Check price at Ruixu$1,099
Price checked October 24, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Built-in heater lets it charge in an unheated garage or shed
- UL 1973 certified, which helps with permits and inspections
- Closed-loop communication with Victron, Sol-Ark, Schneider and most other common inverters
- 10-year warranty and a 6,000-cycle rating at 90% depth of discharge
Cons
- 70 A max charge means a full recharge of one module takes well over an hour
- No app or display; you need a laptop or the inverter to see battery data
The Ruixu RX-LFP48100 family
Every Ruixu RX-LFP48100 model we rank, smallest first. Ratings compare each against its own case.
| Model | Capacity | Rating | Price |
|---|---|---|---|
| Ruixu RX-LFP48100 | 5.1 kWh | 4.5/5 | $1,059 |
| Ruixu RX-LFP48100-H (this one) | 5.1 kWh | 4.6/5 | $1,099 |
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 | RX-LFP48100-H |
|---|---|
| Capacity | |
| Case | Server rack (19-inch) |
| Nominal voltage | 51.2 V |
| Capacity | 100 Ah |
| Energy | 5.1 kWh |
| Usable energy | 4.9 kWh |
| Chemistry | LiFePO4 |
| Cycle life | 6,000 at 90% depth |
| Power | |
| Continuous discharge | 100 A |
| Peak discharge | 149 A |
| Max charge current | 70 A |
| Modules in parallel | Up to 32 |
| Safety and communication | |
| UL 1973 | Yes |
| UL 9540A | Yes |
| UL 9540 | No |
| Communication | CAN, RS485 |
| Works with inverters | Victron, SMA, Studer, Sol-Ark, Solis, Goodwe, Deye, Growatt, LuxPower, Schneider, Voltronic, MPP |
| Self-heating | Yes |
| App | No |
| Build | |
| Enclosure | IP20 |
| Dimensions | 19.0 x 18.1 x 5.3 in |
| Weight | 103.6 lb |
| Warranty | 10 years |
| Released | 2023-12 |
Alternatives in this case
SunGoldPower SG48100P
#2 in Server rackFull review
A proven 5 kWh rack module with a screen and wide inverter support, for indoor home backup and off-grid banks. Choose the heated SGH48100T for cold sheds.
Amazon $1,121 SunGoldPower $1,090$1,090
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
Compare
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