I have an advent 7083 and the power supply went,,So i bought a new charger it booted the laptop up but was not charging the battrey,, So i thought it was that the charger was powerfull enough to power up the laptop but not to charge the battrey ? So i took it to the pc workshop were i took bought the charger and they tested a few other chargers init and said it was the battrey,,,So i bought a battrey off the internet and it is doin exaclay the same thing as before but when i first put it in it shown it as 99% charged,,, could it be the the cuircit thing inside the lappy that has gone as when the old charger went it did blow i think....