Problem Li-Po battery

[tiago1986]

I have a handheld handheld console but something strange happened to me twice, I kept the device turned off with the xiaomi BM20 battery inserted and both times after a period of non-use (maximum 2 months) when I went to use the device the battery was swollen swollen, what could be happening? if I store the BM20 outside the device it does not swell in the stove but it is very annoying to keep putting and removing the battery from the device

[tiago1986]

I bought several BM20 batteries on Aliexpress the same from the same seller but they only swell if they are inserted in the device for a long time without use he said they are original and their value is high, they had a voltage of 4.1v

[tiago1986]

device is handheld Powkiddy Q80

[Siwastaja]

The aliexpress cells are just crap and possibly dangerous. Don't waste your money on them.

[tiago1986]

Where can I buy the original BM20?

the strange thing is that this battery swells only inside the device turned off and not plugged into electrical power

[tiago1986]

I do not know the protection circuit of the device is a handheld handheld Powkiddy Q80 console but it was purchased with the battery already installed and it did not swell but the original batteries I bought both bulged inside the console with it turned off

I just updated the console firmware

[tiago1986]

I'm thinking about purchasing an imax B6 mini universal charger to charge/discharge/storage mode some Li-Po mobile phone batteries BM20 and BP-5L models but I don't know which adapter I can buy to make this operation possible, there is an adapter for do that? I think about buying on Aliexpress