Pure sine wave inverter

Pure sine wave inverters turn 12V, 24V or 48V battery power into 230V mains. Pure sine means the output is the same shape as the wave form from the wall socket AC supply, so anything that runs off the grid runs off these.

Buy pure sine if the list includes a fridge, a microwave, a laptop, a TV, a power tool with a speed control, a CPAP, or anything with a transformer or an induction motor in it. Modified sine inverters are cheaper and will run a kettle and a light, but they make motors run hot and hum, and some electronics simply refuse to work on one.

The NOMAD NPS range runs from 350W to 4500W, 12V as standard with 24V and 48V versions available, and every one of them surges to double its continuous rating for two seconds. The NOMAD MOBILE 6000W is available in 24V and 48V.

Size for the surge, not the label on the appliance. A 700W microwave draws multiple times more than 700W from the battery, and anything with a motor pulls several times its running current for the first second. Add up what will genuinely be running at the same time, then leave headroom on top.

Watch the idle draw as well, because an inverter left switched on all day is a load in its own right. The 350W draws 0.4A doing nothing and the 4500W draws 1.5A, so on a small bank it is worth turning it off. The remote switch panel does that from up to 5 metres away, on any NPS from the 500W up.

These are inverters only. If you want it to charge the battery from the mains or from solar as well, go to the inverter chargers.