... heat, short circuit and polarity-reversal issues.----The charger automatically switches to maintenance mode with 1/10 ... waste.Technical Specifications: Input: Power supply 100 - 240 V AC (~) 50 - 60 Hz, 12 W Output: ... 1,7 V= ---- NiCdDC 1,4 V= ---- NiMHDC 1,7 V= ---- AlkalineDC 4,2 V= ---- Li-IonDC 10 V= ---- 9VDC 5 V= ---- ... of size AAA, AA, C, D, 9 V.l Storage temperature for cells and batteries: from - ...