Battery for HP Spare 746641-001 740715-001 746458-421 751906-541 OA04041 HSTNN-LB5Y HSTNN-LB5S J1U99AA HSTNN-PB5Y TPN-F113 TPN-F115 Battery - 12 Months Warranty(AC Doctor INC)

[Music] here I will show you how to repair your laptop battery for very cheap at home the laptop batteries consists of lithium cell when you see your laptop is charged fully but does not last even half an hour or less which means the cells inside the battery are dead use some tools to open the laptop battery without damaging the battery box because the box will be used later [Music] open the laptop battery case carefully [Music] [Music] [Music] there are four cells inside the laptop battery take out your multimeter and check the voltage generally 3 point 6 or above volt batteries are good below this voltage are the bad ones [Music] this cell are showing 1.89 bolt that means it's damaged cell on the laptop battery this cell are showing three point seven volt that means it's good cell [Music] it also good [Music] we have to replace the damaged cell by another good cell [Music] [Music] thr