Portable power banks consist of three main components: a battery, an inverter, and a solar charge controller. The inverter converts the low voltage, DC battery power into the 230V AC electricity you need to power your 230V appliances.
The size of the inverter (e.g. 200W, 500W, 1000W) describes the maximum power it can provide at any one time, which will dictate the kind of appliances you’ll be able to plug in.
You can work out how big an inverter you need by considering which appliances you’re going to use:
Try to pre-empt which 230V appliances you will want to use and find out their rated power draw, in Watts (W). You can usually find this printed somewhere on the appliance or on the power cord label. Alternatively, you can often find the specifications online.
Work out what your maximum power draw will be at any one time. For example, if you want to plug in a laptop charger (60W), a blender (800W) or a hair dryer (1600W), your max power draw will be 1600W.
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