EBL 906 LCD Rapid Universal Battery Charger for C/D/9V/AA/AAA Ni-MH Ni-CD Rechargeable Batteries Recharge or discharge for 1 to 4 pieces of AA/AAA/C/D Ni-MH Ni-Cd batteries,charge for 1 to 2 pieces of 9V Ni-MH Ni-Cd batteries Unique designed with LCD display screen to indicate the battery status: Charge, Discharge, Full or Bad,LED indicators turn to red when charge for 9V battery,turn off when fully charged Press the blue discharge button to discharge mode,automatically turn to charging mode when fully discharged With negative delta V (- V) cut-off function (except for 9V batteries),with safety timer control for overcharge protection ,with short circuit protection ,with non-rechargeable/bad cell detection Intelligent microprocessor controlled,built-in microcomputer chip will convert the charging mode from fast charging to trickle charging when batteries are nearly full charged(actually not) which ensure the batteries are fully charged