EG4 LifePower4 V2
#11 in Server rackFull review
A standard 5 kWh server-rack module for EG4 and other 48 V inverter owners building a bank in a cabinet. Buy it only if you can find it in stock; EG4 itself is selling WallMount batteries instead.
3.9/5
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.
- 5.1 kWhCapacity
- 100 AOutput
- 5,000Cycles
- NoUL 9540A
- 10 yearsWarranty
Check price at Amazon$1,150
Price checked October 24, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Color screen plus Bluetooth and WiFi app show cell data without a laptop
- EVE cells rated 5,000 full-depth cycles
- Built-in breaker simplifies wiring
Cons
- No UL 1973 listing, unlike SunGoldPower’s SG48100P
- Stops charging below about 39 °F
- Only 15 modules in parallel
The SunGoldPower CoreX 5 family
Every SunGoldPower CoreX 5 model we rank, smallest first. Ratings compare each against its own case.
| Model | Capacity | Rating | Price |
|---|---|---|---|
| SunGoldPower CoreX 5 Pro (this one) | 5.1 kWh | 3.9/5 | $1,150 |
| SunGoldPower CoreX 5 Elite | 5.1 kWh | 3.8/5 | $1,250 |
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 | CoreX 5 Pro |
|---|---|
| Capacity | |
| Case | Server rack (19-inch) |
| Nominal voltage | 51.2 V |
| Capacity | 100 Ah |
| Energy | 5.1 kWh |
| Chemistry | LiFePO4 |
| Cycle life | 5,000 at 100% depth |
| Power | |
| Continuous discharge | 100 A |
| Max charge current | 95 A |
| Modules in parallel | Up to 15 |
| Safety and communication | |
| UL 1973 | No |
| UL 9540A | No |
| UL 9540 | No |
| Communication | CAN, RS485, RS232 |
| Self-heating | No |
| App | Yes |
| Build | |
| Display | Yes |
| Built-in breaker | Yes |
| Enclosure | IP20 |
| Dimensions | 22.08 x 17.64 x 5.91 in |
| Weight | 94.8 lb |
| Warranty | 10 years |
| Released | 2026-03 |
Alternatives in this case
Discover AES Rackmount 5.12kWh Heated
#12 in Server rackFull review
For installers building permitted off-grid or backup systems around Schneider, Victron or SMA gear. It costs more than budget rack batteries, but you get cold-weather charging and a UL 9540 path.
NAZ Solar Electric $1,720$1,720
SOK SK48V100N
#14 in Server rackFull review
A heated, app-connected 5 kWh rack module for off-grid builders who charge in the cold. Look elsewhere if your permit needs a UL listing.
Amazon $1,199$1,199
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