DIY: How to revive a dead 18650 (or any) Li-ion battery cell

today we'll show you how to revive net 18 650 lithium-ion battery cells or any little embarrassing for that matter let's get started so I have these 18 650 cells and our way over this just the voltage of the sale smell only half a volt and if I put in my charger it doesn't want to charge for good sales usually when they put in the charger light will turn red indicating it is charging the battery this sale just doesn't want to charge stays green the light stays green I even tried it with my eternity I'll see charger and it still doesn't wanna charge sighs low voltage so basically the very voltage here is way too low for this charger to recognize the Barry and charge the battery so what I'm gonna do is I'm gonna use another good sale here this sale is fully charged see there for pond owner involved and I'm gonna connect the sales in parallel positive hook up to the positive I'm using the magnet so stick on to my alligator clip and the negative terminal connecting to the negative terminal right this is parallel charging well let it just for a few moments maybe about 20 seconds or so 20 or 30 seconds until it gets to see it's already getting to three point two volts quickly and it quickly rise and I'm not just gonna let it charge for like another 10 seconds or so let's see what we got right now and you don't have to do this long at all the point is to raise the voltage just enough fully for the charger to recognize your battery and I thing is should being good right now so let's unplug this in this thing you wants the voltage right now three point two six volts okay should be good and get the magnet out and try and put in my charger the battery does get a bit one it's just normal you don't want to do this for too long I think on average thirty seconds should be good enough there we go charging the light turns red so indicating it's charging now let me try it on my Tony G charger see if it makes a difference here stop there we go it's charging said 3 over 3 volts now so it's charging and this method is not just limited to 18 650 lithium-ion cells it works with any lithium-ion cells like other kinds of leading my own sounds like Oh RC car batteries lipo batteries cell phone battery and helium ion cells and so I have for now next video I will show you how to salvage these cells from Makita power tool berries and these are really good sail high discharge sail until next time thanks watching

Channel: vuaeco

Views: 2,437,509

Keywords: repair, fix

Id: tbEfhPbqTDE

Length: 4min 36sec (276 seconds)

Published: Thu Nov 02 2017