... charging docks – charges / regenerates AA, AAA, C, D or 9V batteries.--- Battery Protection – charge protects against over charge, over heat, short circuit ... ,4 V= ---- NiMHDC 1,7 V= ---- AlkalineDC 4,2 V= ---- Li-IonDC 10 V= ---- 9VDC 5 V= ---- USBPulse high-speed charging ... of NiCd and NiMH cells, only charging of Li-Ion batteries and rejuvenation of alkaline batteries. Charger for from 1 up to 4 ...