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
3.5/5
A touchscreen rack module from a well-known battery brand, for indoor off-grid systems. UL-listed rivals with longer warranties cost less.
- 5.1 kWhCapacity
- 100 AOutput
- 4,000Cycles
- NoUL 9540A
- 5 yearsWarranty
Check price at LiTime$1,099.99
Price checked October 24, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Touchscreen lets you pick the inverter protocol and read cell data at the battery
- Talks closed-loop with Victron, SMA, Deye, GoodWe and Growatt inverters
- Up to 16 modules in parallel
Cons
- No UL 1973 or UL 9540A listing for permitted installs
- 5-year warranty, half the 10 years common on rack batteries
- Costs more than UL-listed rivals and won’t charge below freezing
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 | 51.2V 100Ah ComFlex Edition |
|---|---|
| Capacity | |
| Case | Server rack (19-inch) |
| Nominal voltage | 51.2 V |
| Capacity | 100 Ah |
| Energy | 5.1 kWh |
| Chemistry | LiFePO4 |
| Cycle life | 4,000 at 100% depth |
| Power | |
| Continuous discharge | 100 A |
| Peak discharge | 110 A |
| Max charge current | 100 A |
| Modules in parallel | Up to 16 |
| Safety and communication | |
| UL 1973 | No |
| UL 9540A | No |
| UL 9540 | No |
| Communication | CAN, RS485 |
| Works with inverters | Victron, SMA, Deye, GoodWe, Growatt |
| Self-heating | No |
| Build | |
| Display | Yes |
| Dimensions | 17.40 x 18.90 x 5.24 in |
| Weight | 99 lb |
| Warranty | 5 years |
| Released | 2024-07 |
Alternatives in this case
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
Pytes E-Box 48100R Discontinued
#16 in Server rackFull review
An older UL-listed rack module whose 50 A limit means you need several for a typical inverter. Buy the V5 instead unless you find a clearance deal.
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