... pack 2.Battery manufactory 3.500 charge/discharge cycles Ni-MH Rechargeable Battery Pack new Features:a) Long life cycle, ... and discharge cycles b) Avoid maintenance, simple operation like primary batteries but avoid overchargingand over discharging (-20 ~ +60oC)c) ... shaver, recorder and so on b) Earphone stereo system, CD player, radio c) Measuring tools, calculator High temperature typeFeatures: ...