All Hand Crank Generators have overvoltage and overcurrent protection.
      All Hand Crank Generators are water proof
      The ambient operating temperature for Hand Crank Generators is between -45°C 
      and 51°C.
      This generator is based on the experience gained with our older PWL70 model. 
      Designed to operate in a demanding environment where the lack of commercial 
      AC power does not allow you to use conventional battery chargers, the PWL70 
      is your solution to provide quick, dependable, power to re charge your batteries 
      indepen- dent of the time of day or availability of sunlight. The PWL70 
      is extremely light weight and easier to carry than most units available 
      in the market. This unit has built-in over-voltage and over-current protection 
      and allows you to charge your batteries quietly and efficiently at any time 
      of day or night. The unit can be used with several tactical type batteries 
      that operate at 12 or 24 Volts DC (BB-590, BB-2590) with excellent results