Rich Solar Alpha 5 Pro
#7 in Server rackFull review
For DIY solar owners who want a rack battery with an app, heater and wide inverter support in one box. It costs a bit more than the budget leaders but needs no add-ons.
Amazon $1,799.99$1,799.99
4.1/5
A cold-tolerant 5 kWh rack module with a screen, for off-grid builds in unheated spaces. Choose the Cubix100 instead if your permit needs a UL listing.
- 5.1 kWhCapacity
- 100 AOutput
- 6,000Cycles
- NoUL 9540A
- 10 yearsWarranty
Check price at Amazon$1,099.99Check price at ECO-WORTHY$1,099.99
Price checked October 24, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Charges down to -4 °F, so it can live in an unheated garage or shed
- Built-in touchscreen shows charge and cell data without a phone
- 3 A active balancing keeps cells matched in large banks
- Built-in fire-suppression aerosol adds a layer of protection
Cons
- No UL 1973 or UL 9540 listing, unlike the cheaper Cubix100
- Costs about $200 more than the Cubix100
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 | ECO-Cubix100Pro |
|---|---|
| Capacity | |
| Case | Server rack (19-inch) |
| Nominal voltage | 51.2 V |
| Capacity | 100 Ah |
| Energy | 5.1 kWh |
| Usable energy | 5.1 kWh |
| Chemistry | LiFePO4 |
| Cycle life | 6,000 at 80% depth |
| Power | |
| Continuous discharge | 100 A |
| Peak discharge | 120 A |
| Max charge current | 100 A |
| Modules in parallel | Up to 32 |
| Safety and communication | |
| UL 1973 | No |
| UL 9540A | No |
| UL 9540 | No |
| Communication | CAN, RS485, RS232 |
| Works with inverters | EG4, Sol-Ark, Deye, Victron, Growatt |
| Self-heating | No |
| App | Yes |
| Build | |
| Display | Yes |
| Built-in breaker | Yes |
| Dimensions | 22.09 x 19.02 x 6.06 in |
| Weight | 105 lb |
| Warranty | 10 years |
| Released | 2026-02 |
Alternatives in this case
Pytes V5α Plus
#8 in Server rackFull review
Pytes’ second-generation V5, adding a breaker, Wi-Fi and fire suppression. Worth seeking out for a code-compliant rack system once US stock appears.
EG4 LL-S 48V 100Ah
#10 in Server rackFull review
A 5 kWh server-rack module with a screen, for owners extending an existing EG4 LL bank. Most new buyers will find it out of stock.
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