XPS M1330 Recharge Time

Hey all,

I have been wondering how long it takes everyone's M1330 to recharge. On High perfromance, mine seems to take like 2:30 hours. Is that normal? That is with the 65 watt adapter. I recently used my D600 power adapter, supplying 19.5 volts 4.62 amps and 90 watts but noticed no increase in time. I was wondering why, and can anybody suggest how I can increase it? (My friend's M1530 charges in 1 hour..)

Thanks,

Shonak

 

As long as the adapter supplies the same voltage, the same current(amps) will be drawn and you won't notice a charge time difference. Put another way, if you plug a device that draws 65W into a 90W adapter, given the 90W adapter doesn't supply more voltage then the device will only pull 65W from it. Inversely, if you plug a 90W device into a 65W adapter, the device will draw 90W from the adapter and possibly overheat/damage it, depending on the safety features built in to the adapter. V=I*R, and R is constant, the laptop circuit in this case. V*I=W

The size of the battery will obviously make a difference. If your friend is charging a 4 cell and you're charging a 9 cell, that's a big difference. If his power adapter is supplying 20.5 volts then that will also make a big difference (and possibly wear out the battery faster, depending on it's design)

 

ok both of our chargers have the same voltage, no. of amps and watts. Put simply, is there another way to decrease the recharge time? I was talking to an IT genius the other week and he said that it is the amps that matter.

My XPS 65 watt adapter is 3.3 amps, my D600 is 4.63. But the recharging times are the same. Surely the D600 charger should charge my 1330 faster?!

Thanks for the reply.

BTW: we both have 6 cell.