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The "activation" problem of lithium-ion batteries, and the method of activating nickel hydrogen rechargeable batteries. When using lithium-ion batteries, it should be noted that after a period of storage, the battery enters a sleep state, and at this time, the capacity is lower than the normal value, and the usage time is also shortened. However, lithium-ion batteries can be activated to restore normal capacity as long as they undergo 3-5 normal charging and discharging cycles; NiMH rechargeable batteries have a slight memory effect, and it is best to recharge each time the battery is depleted to extend battery life. This article analyzes the "activation" problem of lithium-ion batteries and the methods for activating nickel hydrogen rechargeable batteries.

The "activation" problem of lithium-ion batteries

High voltage cannot be used to activate lithium-ion batteries because the protection voltage of its protection board has upper and lower limits. High voltage will burn out the MOS transistor on the protection board. To activate lithium-ion batteries, the positive and negative poles of the charger should be charged directly to the positive and negative poles of the battery. When the voltage reaches the offline voltage of the protection board, the protection board will work normally and charge and discharge normally.

When using lithium-ion batteries for the first time, the activation work was already completed in front of the factory. In terms of technology, the activation process of lithium-ion batteries must be completed without the existence of an "overcharging" protection circuit. However, the lithium-ion batteries used today have their own internal protection circuits, and the charger also has an "overcharging" protection circuit, so it is impossible to activate lithium-ion batteries according to the charging method analyzed by the store.

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