The capacity of the purchased Xiaomi BM21 battery shows 0% and can’t be charged?
Check the Xiaomi BM21 replacement battery to see if the wiring is loose or the connection is not firm.
If the circuit is normal, please check whether the battery adapter can work normally or not.
If the circuit is normal and the charger is good, the issue may be that the circuit board inside the computer is faulty, check the method: replace the original battery to confirm whether it can work normally or check it in the local laptop repair shop.
If the situation above has been checked while the battery still can not charge, the issue may be caused by the Xiaomi BM21 battery. Please contact us and we will solve it for you.
What's the difference between a 3-cell, 6-cell, 9-cell Acer battery?
The difference between those batteries is the duration. The more the cell is, the longer duration the battery will last. Meanwhile, the size of the battery will be larger. If you consider the duration of the battery most, you can choose a battery with more cells, but the bottom will protrude and the weight of the laptop will increase under these circumstances.
How to maintain the Xiaomi BM21 battery?
It is recommended that you fully charge and discharge the Xiaomi BM21 replacement battery at least once a month to keep the electrons flowing inside the battery, especially for those who use laptops frequently for a long time. You can also optimize battery performance by changing certain settings on your notebook. For example, turn off unnecessary devices and unused functions, such as Bluetooth and Wi-Fi, and dim the screen brightness to a comfortable level when using the notebook.