>>722919825
Also, parallel chaining batteries is really an addiction of mine, I don't do it just with controllers, I do with everything.

My headset have three batteries. My street BT earphones have two batteries. My Joypad have 3 batteries. The only limitation to how many you can shove, is physical space. And if the capacitors can charge that many power without overheating, but that really ain't a problem when you're dealing with small stuff. But if you're doing experiences with things above 10k mAh, then you should think of ways to cool the capacitors too

>>722922295
Phones have no space, controllers do. And you should stop being a cuck and depending on the good will of companies. As long as you have the board from an old power bank, you can shove as much batteries on a self made one as you physically can

Literally, you can buy BAGS of batteries cheap for a few dollars online, and make anything you have get longer usage