Ruixu RX-LFP48100-H
#3 in Server rackFull review
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.
Ruixu $1,099$1,099
4.4/5
A heated, UL 1973 rack module for battery banks in cold sheds and garages. Pick the SG48100P if your batteries stay indoors and you want a screen.
- 5.1 kWhCapacity
- 100 AOutput
- 7,000Cycles
- NoUL 9540A
- 10 yearsWarranty
Check price at Amazon$1,094.80
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
- Handles 200 A bursts for 15 s, enough for big motor starts
- UL 1973 listing helps with permits
- Closed-loop protocols for most popular inverter brands, set by DIP switch
Cons
- Max charge current is 70 A, so refills are slower than 100 A modules
- No breaker, screen or phone app
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 | SGH48100T |
|---|---|
| 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 | 7,000 |
| Power | |
| Continuous discharge | 100 A |
| Peak discharge | 200 A |
| Max charge current | 70 A |
| Modules in parallel | Up to 32 |
| Safety and communication | |
| UL 1973 | Yes |
| UL 9540A | No |
| UL 9540 | No |
| Communication | CAN, RS485 |
| Works with inverters | Growatt, Deye, Sol-Ark, SunGoldPower, Luxpower, EG4, Victron, Schneider, SMA, Solis |
| Self-heating | Yes |
| Build | |
| Display | No |
| Built-in breaker | No |
| Dimensions | 19.3 x 17.3 x 5.2 in |
| Weight | 103 lb |
| Warranty | 10 years |
| Released | 2024-11 |
Alternatives in this case
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
Pytes V5
#6 in Server rackFull review
A fully UL-listed, heated 5 kWh rack module for permitted home installs. It’s worth the premium when your inspector wants UL 9540.
Signature Solar $1,450$1,450
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