I have a cheap Polatab tablet that was functioning well and I want to get my moneys worth out of, it started refusing to turn on, then died altogether, I unsoldered the battery and left 5 v USB connected overnight, re solderd but still no charge, the battery has its own little pcb should I bypass that and try to charge via the tabs on the battery ?
Or shall I buy a new cheap battery off eBay, I want to know wether it will work or the tablet will still refuse to charge it ?
Could I cobble together some kind of temporary power supply to check the tablet still functions before I buy a new battery ?
I booted the tablet up from the USB without the battery attached, then resoldered the battery to the PCB, its now back in operation and I can use it until I get a new battery. I will leave it switched on and charging permanently until then.