The charging method of nickel hydrogen batteries

　　(1) Standard charging uses a constant current for charging within a limited time. The timer should be adjusted to stop charging when reaching 150-160% capacity input to prevent prolonged overcharging. This charging method is suitable for a temperature range of 0-45 ℃, up to a maximum charging current of 0.1C, and the charging time of the battery at room temperature cannot exceed 1000 hours.

　　(2) Another method to fully charge a nickel hydrogen battery in a short period of time is to charge it with a constant current of 0.3C within a limited time. The timer should be set to terminate charging after 4 hours, when the charging amount is equivalent to 120% of the battery capacity. This charging method is suitable for a temperature range of 10-45 ℃.

　　(3) The widespread use of trickle charging requires the battery to remain fully charged. In order to compensate for the power loss caused by battery self discharge, it is recommended to use a current of 0.01-0.03C for trickle charging. The suitable temperature range for trickle charging is 10-35 ℃. Trickle charging can be used for subsequent charging using the above charging methods.

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