The voltage label is a compatibility clue
The SolarEdge Home Battery 48V is a low-voltage modular battery designed for supported SolarEdge three-phase architectures in applicable markets. The Home Battery 400V is designed around supported SolarEdge single-phase systems. They should not be treated as interchangeable batteries.
| Factor | Home Battery 48V | Home Battery 400V |
|---|---|---|
| Battery class | 48V / BAT-05K48 family | High-voltage 400V family |
| Usable energy | 4.6–4.85kWh per module in current supported configurations | 9.7kWh storage class per battery in current Melnti-verified documentation |
| Typical inverter fit | Supported SolarEdge three-phase Home Wave/Hub architecture | Supported SolarEdge single-phase architecture |
| Expansion | Up to five modules per inverter in manufacturer documentation | Up to three batteries per inverter in current manufacturer documentation |
| Backup | Requires supported inverter and backup hardware; local rules apply | Requires supported inverter and backup hardware; local rules apply |
Do not choose from voltage alone
Start with the exact inverter model, phase configuration, backup goals and country-specific SolarEdge compatibility matrix. If the design uses backup, confirm the required SolarEdge Home Backup Interface variant and the loads that will actually be backed up.