Choosing between APX and AXE isn't really about brand or price — it's a technical decision: high voltage or low voltage. A high-voltage battery (APX) stacks more cells and delivers more power at lower current, so a grid-tied or hybrid home can run an EV charger, heat pump and induction hob at once without strain. A low-voltage battery (AXE, around 48–51.2 V) is simpler and pairs with off-grid inverters — ideal for backup and standalone systems. The right pick depends on your inverter and how you actually use power.
- 1Pick APX (high-voltage) for grid-tied or hybrid self-consumption: maximum power and efficiency, with headroom for EV charging, a heat pump or induction cooking.
- 2Pick AXE (low-voltage, ~48–51.2 V) for off-grid systems and backup, paired with off-grid inverters — lower peak power, but simple and robust.
- 3Want a battery that fits almost any setup with no fuss? AURA is plug-and-play. Still unsure? Read the full high-voltage vs low-voltage guide before deciding.