Power Inverters

A power inverter converts DC battery power (12V, 24V or 48V) into 230V AC mains power, so you can run household appliances and tools away from the grid. Waveinverter stocks the largest range of inverters in New Zealand, from compact units to whole-home systems. The key choice is waveform: a pure sine wave inverter produces clean, grid-quality power that is safe for sensitive electronics, induction motors, medical devices, CPAP machines, microwaves and modern appliances, while a modified sine wave inverter is a lower-cost option suited to simple resistive loads such as basic lighting and heating. Size an inverter by continuous watts for steady loads and by peak (surge) watts for motor start-up, since many appliances briefly draw two to three times their running wattage. Match the inverter to your battery bank: a 1500W load pulls roughly 125A from a 12V battery, so cable and battery capacity matter.

What size inverter do I need? Add the continuous wattage of everything you will run at once, then allow headroom for surge.