Chargers and mobile

Buying guide

This is what keeps your phone, tablet and laptop powered every day. With a USB charger, the power and the standard decide everything: without Power Delivery support a laptop will charge slowly or not at all. With a power bank, look at the output power rather than the capacity – anything under 60 W will not charge a laptop. When replacing a power adapter, the voltage must match exactly and the current must be no lower than the old one's. Large UPS units, batteries and solar systems have a group of their own – "UPS and power".