id agree with grey . recycle them get them outa the house and outside in safe fireproof place. inside a cinder block will do.. with pale of water on top.make Y splitter n go 2 x 2 cells...
Id check the balance plug 1st.. does it have a broken wire?. If you dont have alot of lipo repair behind you might be best to just buy another and start fresh. there are lipo repair vids on youtube.. that battery to me just looks way to outa balance for my task.id trash them call it a...