inputs.text: versatile not charge hp laptop battery - several laptops occasionally repair computers including laptops friends family friend mine hp pavilion dv7 laptop kids using crusty viruses spyware finally stopped booting misplaced charger battery went flat could get everything cleaned went hunt universal laptop power adapter bought one based reviewsthe laptop operates great power adapter wont charge battery charging light laptop blinks times right plugging power adapter goes suspect hp using smart battery like apple charger doesnt pass \\authentic\\ check oh well least got laptop fixedit also didnt adapter fits old dell latitude c640 kicking around weird 3pin plug considering age circa 2002 thats not surprising