ECO-WORTHY Cubix100
#1 in Server rackFull review
A low-cost, UL-listed 5 kWh rack module for permitted indoor home backup. Pick a heated or low-temp model if it lives in an unheated space.
Amazon $889.99 ECO-WORTHY $889.99$889.99
The ECO-WORTHY Cubix100 rates 4.7 among server rack 48V solar batterys; the BigBattery 48V Husky 2 INV rates 3.7 among wall and floor mount ones. The ECO-WORTHY Cubix100 costs $690.01 less ($889.99 vs $1,580).
BigBattery 48V Husky 2 INV
For RV, van and small off-grid systems that need a rugged, weatherproof 48 V battery that talks to the inverter. Home systems that stay indoors get more for the money from a rack battery.
BigBattery $1,580 Signature Solar $1,580$1,580
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.
Scores side by side
These two sit in different case classes (server rack and wall and floor mount), and each is scored against the reference points for its own class, so a rating says how well each does among its own case peers. How we rank explains each factor.
| Factor weight | ECO-WORTHY Cubix100 | BigBattery 48V Husky 2 INV |
|---|---|---|
| Overall rating | 4.7/5 | 3.7/5 |
| Value 35% | 95 $174 per rated kWh | 65 $309 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 12-year warranty |
| Safety listing 15% | 100 UL 1973, UL 9540 listed | 0 no UL listing |
| Cycle life 10% | 60 6,000 cycles at 80% depth, maker rating | 10 3,500 cycles, maker rating |
| Features 10% | 70 inverter communication, app; no self-heating | 100 inverter communication, self-heating, app |
Specifications
| ECO-WORTHY Cubix100 | BigBattery 48V Husky 2 INV | |
|---|---|---|
| Capacity | ||
| Case | Server rack (19-inch) | Wall or floor mount |
| Nominal voltage | 51.2 V | 51.2 V |
| Capacity | 100 Ah | 100 Ah |
| Energy | 5.1 kWh | 5.1 kWh |
| Usable energy | 5.1 kWh | - |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 6,000 at 80% depth | 3,500 |
| Power | ||
| Continuous discharge | 100 A | 100 A |
| Peak discharge | 120 A | 150 A |
| Max charge current | 100 A | 100 A |
| Modules in parallel | Up to 32 | Up to 16 |
| Safety and communication | ||
| UL 1973 | Yes | No |
| UL 9540A | Yes | No |
| UL 9540 | Yes | No |
| Communication | CAN, RS485, RS232 | CAN, RS485 |
| Works with inverters | Victron, Deye, Growatt, Lux Power, Sol-Ark, GoodWe, EG4, SRNE | EG4, Victron, Sol-Ark, Growatt, Luxpower, Schneider, Deye, SMA, Solis, Megarevo, Studer, Voltronic, Inhenergy, Afore |
| Self-heating | No | Yes |
| App | Yes | Yes |
| Build | ||
| Display | No | No |
| Built-in breaker | Yes | - |
| Enclosure | - | IP65 / NEMA 4X |
| Dimensions | 22.09 x 19.02 x 5.63 in | 12.6 x 18.1 x 9.8 in (320 x 460 x 249 mm) |
| Weight | 103 lb | 100 lb |
| Warranty | 10 years | 12 years |
| Released | 2026-03 | - |