1. Freely charge 2/4/6/8 AA AAA Ni-MH Ni-CD rechargeable batteries; 2. This multi-purpose battery charger comes equipped with 2 USB port (USB 1: 5V/2.1A, USB 2: 5V/1.0A) for charging a smartphone, iPad or other USB device while charging batteries. Adopting -∆V intellectual cut-off charging method, automatically turn to trickle charge, overheat-detection to prevent over-charging, short circuit protection and reverse polarity protection. Specification Input:100-120V AC MAX:4A Output:2.4V DC 180mA USB Output: 5V/1.0A 5V/2.1A Battery Charge Rate:>90% Size: 7.2 x 3.7 x1.1 inch Weight: 5.9 oz 1. Freely charge 2/4/6/8 AA AAA Ni-MH Ni-CD rechargeable batteries; 2. Support to charge your 2 different phones or 1 tablet while charging batteries. Note: Please don’t charge alkaline or lithium batteries. EBL 808U with personality LED indicator shows the charging process Red means charging; Green means fully charged. Efficient prevents overload, over heating, over current & voltage, and short circuit for safer, faster charging, EBL always provide you a safety environment, reliable battery charger.