4 Slots aa.aaa Fast Smart Battery Charger * Input&Output - Micro USB DC 5V 2A input, DC1.4V/ 500mA*4 output shorten the time of charging 4 Slots aa.aaa Fast Smart Battery Charger * Independent Charge Design - The AA, AAA smart battery charger offers 4 different channels allowing you to charge any combination of AA/AAA NIMH/NICD rechargeable cells, not necessarily must even in pairs * Advanced Heat Dissipation - Increase the rechargeable battery and charger distance to 7mm and a number of holes for heat dissipation, to protect your charger and batteries Size 92mm(L)Ã??66mm(W)Ã??30.2mm(H) Input DC 5V 2A Micro USB Output DC1.4V 500MA*4 Protection Short-circuit, Reverse protection, Non-rechargeable battery detection Charging control mode 1. Negative control Ã?? V 2. 0 Ã?? V control 3. Maximum voltage 1.6v control 4. Maximum time of 8h control Net weight 60g Certificate CE, ROHS, FCC Package Charger +Manual +USB cable OEM Acceptable