COMPACT BATTERY CHARGER:This Compact Battery Charger is designed for use with NiMh and NiCd in sizes AA, AAA hydride batteries. Its features automatic short circuit, reverse polarity, and overcharge protection, ensuring your batteries are charged safely and efficiently. The charger can accommodate 2 or 4 batteries simultaneously.EASY TO OPERATE: Simply plug in to a standard UK mains socket and insert your rechargeable batteries into the appropriate sized compartment. The red light will turn on to indicate that a battery has been inserted and leave to charge for the recommended time. There is no indicator to state when the battery is fully charged.UNIVERSAL BATTERY CHARGER:Four-bay smart battery charger allows you to charge 2 or 4 pcs of Ni-Mh Ni-Cd AA/AAA rechargeable batteries, compatible with batteries from all brands.QUICK RECHARGE:Recharge your batteries to their full capacity quickly and safely. The charging rate for AA is 1.2v DC 120mA and for AAA is 1.2v DC 120mA.DURABLE:Many rechargeable batteries can be recharged up to 1000 times, providing long lasting power to your everyday devices again and again. Save money and reduce waste without the need for disposable batteries.