1. Newly purchased mobile power bank needs to be fully charged and discharged repeatedly to activate?

There are indeed some rechargeable batteries that require similar “activation” work. This is true for the previous nickel-cadmium rechargeable batteries and nickel-hydrogen rechargeable batteries, but now most of the batteries used in our mobile phone power banks are lithium-ion batteries. Lithium-ion batteries do not need to be activated through deep charge and discharge at the beginning of use.

2. Overcharging will cause the battery to explode?

It is true that there are many explosions in mobile phones and mobile power sources, but they are not caused by overcharging. Most of them are caused by unqualified quality. Because the actual use of lithium-ion batteries is composed of several batteries together with a set of safety protection circuits and A variety of safety devices are packaged together into a battery board. These safety designs can ensure that the circuit of the battery is automatically cut off in the event of overcharging, overdischarging and short circuit; too high internal pressure of the battery will also trigger the decompression of the exhaust device. Therefore, as long as it is not a battery of unreliable quality, the battery will not explode if the power bank is fully charged and not unplugged in time. To cool the battery “explosion-proof”, it is best not to charge the mobile phone while playing games, nor to charge the mobile phone while watching TV.

3. Reducing the number of recharges can extend battery life?

Generally, the lifespan of lithium-ion batteries can reach hundreds of charge and discharge cycles, and such expressions are often seen in the manuals of batteries and equipment. The 1 charge-discharge cycle here refers to the process of using up the battery and then recharging it, rather than plugging in the charger and unplugging it once.