Powerbank — a time Bomb?

Good evening. On the Internet many videos as exploding lithium ion batteries, of course after watching these videos, now nervously glancing at your powerbank xiaomi v2 with caution. There are 20 thousand capacity, not a tiny little bomb. The essence of the question of how to determine the health of the battery? In loss of capacity? And what swell or lose their shape of the battery? I see a little inflation at the center of the body, a few 1-2mm, XS it was so or I'm paranoid)) long Charge normal charge-2A, from QC refused. To refuse to use poverbank can't convenient. What protective mechanisms should be present?) Thanks in advance for the answers.
April 19th 20 at 12:10
2 answers
April 19th 20 at 12:12
You can check with the tester. if you disassemble the powerbank. there are 20 thousand ma at 3.7 volts, that is at 5 volts, almost 15 thousand without regard to efficiency.
April 19th 20 at 12:14
If there is inflation should be abandoned. Have your own poverbank case metal perhaps? Even if it is swollen, everything is sad.
of plastic case is very tight. Ruler set, not exactly in short, the hill is small. - Quinton41 commented on April 19th 20 at 12:17
@Quinton41, I have on my phone so there was a small hill, but as Podkovyrov so immediately flew cover. The Bank does not understand? Look in the Internet. In my opinion it is very unpleasant if really swollen and can catch fire)
If the chances of this are quite meager, but I think better not to risk it) - catherine.Bail commented on April 19th 20 at 12:20

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