Please charge the battery with 5V/3A or 5V/2A wall charger.
Don't use the battery in rain or in a humid environment, as this might cause the battery to self-ignite or even explode.
It's forbidden to use it again if the battery is squeezed.
It's forbidden to charge the battery with a USB port, such as a computer, car charger, etc. Because these power sources are not stable enough, they might damage the battery.
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