An outdoor-rated 5 kWh battery for owners of a Growatt US hybrid inverter. Owners of other inverter brands get more for less from a rack module.
Amazon $1,547.55The Growatt ALP 5.0L-E2 US is the better 48V solar battery overall, rated 4.0 to 3.8. The Growatt ALP 5.0L-E2 US leads on safety listing and features. The SunGoldPower CoreX 5 Elite wins on output and value. The SunGoldPower CoreX 5 Elite costs $297.55 less ($1,250 vs $1,547.55).
The wall-mount version of the CoreX 5 Pro, for indoor systems where a rack doesn’t fit. Choose a UL-listed battery if your permit needs one.
Amazon $1,250Prices 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 Growatt ALP 5.0L-E2 US for safety listing (UL 1973, UL 9540A listed vs no UL listing) and features (inverter communication vs app; no self-heating).
- Choose the SunGoldPower CoreX 5 Elite for output (100 A continuous (about 5.1 kW) vs 60 A continuous (about 3.1 kW)) and value ($244 per rated kWh vs $302 per rated kWh).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every wall and floor mount 48V solar battery; a clear win is highlighted. How we rank explains each one.
| Factor weight | Growatt ALP 5.0L-E2 US | SunGoldPower CoreX 5 Elite |
|---|---|---|
| Overall rating | 4.0/5 | 3.8/5 |
| Value 35% | 66 $302 per rated kWh | 79 $244 per rated kWh |
| Output 15% | 43 60 A continuous (about 3.1 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% | 50 cycle life not published (neutral score used) | 40 5,000 cycles at 100% depth, maker rating |
| Features 10% | 70 inverter communication | 50 app; no self-heating |
Specifications
| Growatt ALP 5.0L-E2 US | SunGoldPower CoreX 5 Elite | |
|---|---|---|
| Capacity | ||
| Case | Wall or floor mount | 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 | 4.6 kWh | - |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | - | 5,000 at 100% depth |
| Power | ||
| Continuous discharge | 60 A | 100 A |
| Max charge current | 60 A | 95 A |
| Modules in parallel | Up to 8 | Up to 15 |
| Safety and communication | ||
| UL 1973 | Yes | No |
| UL 9540A | Yes | No |
| UL 9540 | No | No |
| Communication | CAN | CAN, RS485 |
| Works with inverters | Growatt | - |
| Self-heating | - | No |
| App | - | Yes |
| Build | ||
| Display | - | Yes |
| Built-in breaker | - | Yes |
| Enclosure | IP66 | IP20 |
| Dimensions | 28.0 x 7.3 x 11.6 in | 22.05 x 18.9 x 5.39 in |
| Weight | 101.4 lb | 105.8 lb |
| Warranty | 10 years | 10 years |
| Released | 2024-06 | 2026-04 |
