How to charge the Ni-MH battery pack for the first time?

The first charging method of nickel-hydrogen battery pack 1. Ni-MH battery and nickel-cadmium battery have the same memory effect, but it is much smaller than nickel-cadmium battery. Therefore, it is not necessary to perform a discharge operation every time it is charged (because improper operation will damage the battery), it only needs to be fully charged and discharged once every three months to alleviate the memory effect. 2. Neither the Ni-MH battery pack nor the lithium battery can withstand overcharge. Therefore, the PICKCUT control method of constant current charging of nickel-metal hydride storage batteries is the best charging method when the charging voltage reaches the maximum, stopping to continue charging. 3. Under normal circumstances, a new Ni-MH battery pack has only a small amount of power, so you must charge it before using it after purchase. If the lithium battery leaves the factory for a short time and has sufficient power, it is recommended to use it before charging. New nickel-hydrogen storage batteries generally need to be charged and used 3-4 times before their performance can reach their best state. 4. Although the memory effect of the Ni-MH battery is small, it is best to recharge it after each use, and to charge it all at once. Do not charge it for a while and then use it for a while. This is an important point for longevity. 5. When charging, pay attention to the heat dissipation around the charger. Keep the battery clean when not in use, especially the contacts at both ends, and wipe gently with a soft dry cloth if necessary. If the battery is not used for a long time, take the battery out of the battery compartment and place it in a dry environment. 6. After a few months of storage, the Ni-MH battery pack will enter a dormant state, and the battery life will be greatly reduced. If the Ni-MH battery has been stored for a long time, it is advisable to charge it with a slow charge first. Generally, the voltage of the Ni-MH battery is below 1.2V before charging, and the normal voltage is around 1.4V after being fully charged. Therefore, the Ni-MH battery pack can be used before the first charge. Once the nickel-metal hydride battery charging starts, it is necessary to choose what method to charge. It is generally believed that the power of the nickel-metal hydride battery before the first charge is very small. Therefore, the low-current constant-current charging method should be adopted. Most of them are charged at a rate of 0.1C for 12 to 14 hours. Low-current charging has no negative impact on the battery. Even if there may be a little overcharging, it doesn't matter much. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: How to estimate the remaining UPS battery capacity?