The new Molecula PB-10-03 Powerbank is not charging, what should I do?

Question

Electronics

Guys, such a problem, I bought a Powerbank PB-10-03 at Ulmart, but since they stole 1 billion from the savings bank, they now have some kind of garbage and you can only hand it over at the other end of the city, I bought it for a penny (900 r. ) to get to the warranty point costs 900 rubles. so it was customary to take it apart and see what was inside. Who thinks what? Why can't the Powerbank be charged? when I connect to the outlet, the percentages start to go very quickly 1-2-3-4-5, etc., after 10 minutes the battery with a capacity of 10k is charged, I disconnect it from charging - I try to start - reactions 0.
I think maybe where, what has soldered ?

Answer 1

Most likely, the battery is kirdyk, or it was originally 90% sand. You can check by unsoldering the battery from the board and trying to charge and discharge it with a separate charger. You can check the electronics by connecting a known working battery. Carefully! This can kill him too if the board is faulty.