The rechargeable batteries make a great choice for anything from game controllers and toys to clocks, flashlights, and more!! The battery charger can charge 1-8 Ni-MH/Ni-CD AAA/AA rechargeable batteries or 1-4 Ni-MH C/D rechargeable batteries respectively. AA/AAA/C/D Batteries: Battery Size: AA/ AAA/C/D Battery Chemistry: Ni-MH Nominal Voltage: 1.2V Battery capacity: 1000mAh(AAA)/2500mAh(AA)/5000mAh(C)/10000mAh(D) Brand: SHENTEC Operating Temperature Range: -4°F to 140°F (-20°C to 60°C) Packaging: PP boxes (16 packs AA/AAA or 4 packs C/D batteries) Reliable long-lasting power Rechargeable Nickel Metal Hydride (Ni-MH) Universal Intelligent Charger: Input: DC 5V/2A Output: 1.2V 1800mA x1/2AA; 900mA x3/4AA; 450mA x5/6/7/8AA; 900mA x1/2AAA; 450mA x3/4AAA; 225mA x5/6/7/8AAA; 1.2V 1800mA x1/2C/D.