Many of us have encountered or at least heard about the “presence effect” – when non-working equipment/programs start to work at one approximation of the “offset”.
A girl brought a power bank (washed in a cage and dried on the battery for a couple of days), I ticked - is expected to not work. I understand and not badly cut about the metal body. The batteries and payload are sadly oxidized a little more than entirely. Sitting the bleeding finger, I tick again. The LCD screen of the bank joyfully shows full working capacity. A week without complaints. Now he has the nickname "Zombie", well, and I have no other than "Necromancer with a drum".