18650 rechargeable battery lithium 3.7v 3500mah
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18650 rechargeable battery lithium 3.7v 3500mah
18650 rechargeable battery lithium 3.7v 3500mah
polymer lithium battery

Primary battery

Rechargeable Battery

LR03 alkaline battery

NiMH battery packs

release time:2024-12-25 Hits:     Popular:AG11 battery

What are the harms of overcharging and undercharging?

Overcharging means that the battery charging current is greater than the acceptable current of the battery. Overcharging mainly produces a side reaction of electrolyzing water. Since the oxygen generated by the positive electrode of the battery is transferred to the negative electrode for oxygen recombination reaction, heat is generated. Therefore, the overcharge amount is actually converted into heat to increase the battery temperature. If it is not controlled, it will cause a large amount of water loss, and in severe cases, deformation and other faults. Undercharging means that the battery is often undercharged. A coarse and hard lead sulfate will gradually form at the pole, which is almost insoluble, that is, "irreversible sulfation" will occur. It cannot be charged using ordinary methods, so the capacity will decay rapidly again and again.

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