How to care for the batteries of your power and garden tools

In order to determine the performance of power tool batteries, TÜV product testers carried drove dozens of nails into wood – among other tasks. — dpa

The basic design of power and garden tools hasn’t changed much over the years - a lawn mower is still a lawn mower.

What has changed is the batteries that power them. They have now become so long-lasting that they challenge petrol and mains-powered devices.