This charger is BIS certified which means it provides guarantee of quality, safety and reliability of the product.
Power requirements: 110-240VAC 50/60 Hz
Auto-Cut charger , it stops charing once battery is full which protects battery from over charging.
Can charge 2pcs battery at the same time, highly efficient!...100% Safety Guarantee: Protected with overcharge, over discharge, short-circuit, surge, overvoltage, and overcurrent safeguards, and a fire-resistant build