This Charger is the Safest you will Find.

It has a light which is RED when Charging and GREEN when Fully Charged.

When Fully Charged, it will Stop Charging.

Also, in the UK Plug is a Fuse. 

More safety than other cheap charger.
Over Voltage Protection, Over Heat Protection, CE Certification
Please check the model number before you place order!
We focus on providing quality power products and excellent customer service.
Intelligent IC chip recognizes a fully charged battery and automatically switches to saver mode to prevent overcharging and short circuit.