... AA, AAA, C, D or 9V batteries.--- Battery Protection – charge protects against over charge, over heat, short circuit and polarity-reversal issues.----The charger ... and rejuvenation of alkaline batteries. Charger for from 1 up to 4 cells / batteries of size AAA, AA, C, D, 9 V.l ... waste, use separate collection points of sorted waste. A4 channels AA,AAA alkaline/nimh/nicd/carbon zinc battery charger