N50AAA - 

Sanyo CADNICA batteries can be used over a wide temperature range. As cell characteristics vary slightly depending on the temperature, use within the temperature range given below in order to obtain optimum performance. Operating Temperature Range: Charge — 0°C-45°C; Discharge — –20°C-60°C; Storage — –30°C-50°C (–30°C-350°C for long periods). Nickel-Cadmium batteries may be used in cyclic, trickle or float charge use. Operating Temperature Range: Charge — 0°C-45°C (standard), 10°C-45°C (quick); Discharge — –20°C-60°C; Storage — –30°C-50°C.