Electric vehicle power battery.marine battery for trolling motor

　　At present, the cadmium in the widely used Nickel–cadmium battery (Ni Cd) is toxic, which makes the waste battery treatment complex and the environment polluted. Therefore, it will gradually be replaced by the nickel hydrogen rechargeable battery (Ni MH) made of hydrogen storage alloy. In terms of battery power, the same size of NiMH rechargeable battery has about 1.5~2 times more power than Nickel–cadmium battery, and is free of cadmium pollution. It has been widely used in mobile communications, notebook computers and other small portable electronic devices. Nickel–metal hydride battery is composed of hydrogen ion and metal nickel. Its power storage is 30% more than Nickel–cadmium battery, lighter than Nickel–cadmium battery, longer service life, and no pollution to the environment. At present, the Nickel–metal hydride battery with larger capacity has been used in gasoline/electric hybrid vehicles. The Nickel–metal hydride battery can be used for rapid charging and discharging process. When the vehicle is running at high speed, the electricity generated by the generator can be stored in the on-board Nickel–metal hydride battery. When the vehicle is running at low speed, it usually consumes a lot of gasoline than at high speed. Therefore, in order to save gasoline, At this time, the on-board Nickel–metal hydride battery can be used to drive the motor instead of the internal combustion engine, which not only ensures the normal driving of the car, but also saves a lot of gasoline.

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