Amazon Basics Battery Charger for Rechargeable AA and AAA NiMh Batteries UK Plug, 4 Bay, Black

Battery Charger: 4-bay rapid battery charger (ONLY for NiMH batteries), with AC flip-down plug. Slim profile and switching power ability for worldwide use (100 AC to 240 AC; requires AC plug converted for non-UK regions). LED Light Indicator: 1) Battery is charging: LED blinks slow. 2) Battery is fully charged: LED is solid white. 3) The charger detects an error (defective battery or alkaline battery): LED blinks fast. 4) Every time the charger is connected to power all LEDs power up and power off in a quick sequence. Fast-Charging: Fully charges 2 AA within 3.5 hours, 4 AA within 7 hours; 2 AAA within 2 hours, 4 AAA within 4 hours Intelligent and Safe Charger: Plug-and-play charger with LED indicators. Charges each battery individually, instead of charging only pair of batteries like other designs. Latest battery detection technology indicates wrong polarity, with cut-off function to prevent overheating and overcharging (turns to trickle charge when battery is full) Travel-friendly Charger: slim, lightweight