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
The Ruixu RX-LFP48100 is the better 48V solar battery overall, rated 4.5 to 3.9. The Ruixu RX-LFP48100 leads on safety listing. The SunGoldPower CoreX 5 Pro wins on features. The Ruixu RX-LFP48100 costs $91 less ($1,059 vs $1,150).
SunGoldPower CoreX 5 Pro
#13 in Server rackFull review
A well-equipped 5 kWh rack module with a screen and app, for indoor off-grid and backup banks that don’t need a UL listing.
Amazon $1,150$1,150
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 Ruixu RX-LFP48100 for safety listing (UL 1973, UL 9540A listed vs no UL listing).
- Choose the SunGoldPower CoreX 5 Pro for features (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 | Ruixu RX-LFP48100 | SunGoldPower CoreX 5 Pro |
|---|---|---|
| Overall rating | 4.5/5 | 3.9/5 |
| Value 35% | 87 $207 per rated kWh | 83 $225 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 9540A listed | 0 no UL listing |
| Cycle life 10% | 60 6,000 cycles at 90% depth, maker rating | 40 5,000 cycles at 100% depth, maker rating |
| Features 10% | 40 inverter communication; no self-heating | 50 app; no self-heating |
Specifications
| Ruixu RX-LFP48100 | SunGoldPower CoreX 5 Pro | |
|---|---|---|
| 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 | 4.9 kWh | - |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 6,000 at 90% depth | 5,000 at 100% depth |
| Power | ||
| Continuous discharge | 100 A | 100 A |
| Peak discharge | 149 A | - |
| Max charge current | 70 A | 95 A |
| Modules in parallel | Up to 32 | Up to 15 |
| Safety and communication | ||
| UL 1973 | Yes | No |
| UL 9540A | Yes | No |
| UL 9540 | No | No |
| Communication | CAN, RS485 | CAN, RS485, RS232 |
| Works with inverters | Victron, SMA, Studer, Sol-Ark, Solis, Goodwe, Deye, Growatt, LuxPower, Schneider, Voltronic, MPP | - |
| Self-heating | No | No |
| App | No | Yes |
| Build | ||
| Display | - | Yes |
| Built-in breaker | - | Yes |
| Enclosure | IP20 | IP20 |
| Dimensions | 19.0 x 18.1 x 5.3 in | 22.08 x 17.64 x 5.91 in |
| Weight | 103.6 lb | 94.8 lb |
| Warranty | 10 years | 10 years |
| Released | 2023-07 | 2026-03 |