DIY: How to Revive a dead Li-ion power tool battery September 12, 2018 Leave a comment Fix your dead battery by using a DC power source to raise its voltage. Note: do NOT use a DC power source with more voltage than the maximum rated voltage … source Please follow and like us: Related Posts:Fixing 18V 2.4Ah Ryobi Lithium Power Tool BatteriesHow to revive Ryobi lithium battery P108 . Quick and easyPart1 - How to revive / rejuvenate / fix a bad rechargeable…Dead Battery Repair With Aspirin - Myth or RealityDEEP CYCLE BATTERY HACK?! Fix $400 battery for $20?! (Part…Apple iPhone 7 Battery Replacement || How to Remove iPhone 7…