This short guide covers the safety considerations that should be taken into account when using items that use Lithium Ion batteries, such as portable powered tools, e-bikes and other cordless equipment.

This guidance is for choosing batteries for general practical circuit work, where pupils experiment with low-voltage circuits by connecting batteries , torch bulbs, buzzers, small motors and other low-power components to investigate electrical characteristics, parallel and series circuits, etc. 

Drilling holes in resistant materials. Most portable power tools are electrically operated but pneumatic tools are used where compressed air is available. The use of tools with integral low-voltage battery packs is increasing.

The cutting of sheet metal using power-operated shears, nibblers or notchers, either mains- or battery-driven. Hand-held nibblers may consist of an accessory fitted to a portable drill.