Voltcraft P9-4

Powerful 9V block charger for 1 to 4 batteries. Once the battery is inserted, the voltage is automatically detected and the charging process begins. You can choose between 5 programs: Charge, Discharge, Test, Quick-Test, and Refresh. In Test mode, the capacity is determined by charging and discharging. In Quick-Test mode, the voltage drop is measured over the internal resistance of the battery within 10 seconds. The Refresh mode provides optimal care and rejuvenation for your batteries by repeatedly charging and discharging them to achieve their optimal capacity. The charge and discharge current can be set from 50 mA to 200 mA. For NiMH and NiCd batteries, the charge current is switched off using Minus-Delta-U when the battery is full. After the charging process, maintenance charging for NiMH and NiCd batteries is automatically activated to maintain the highest capacity. All parameters and settings can be easily read on the illuminated and clearly arranged LC display. Features: Refresh/Rejuvenate, individual slot monitoring, discharge function, maintenance charging, Minus-Delta-U cutoff, graphical display, automatic battery test.