is there anyway to extend the battery life other than getting a 9 cell batt which weights like a brick?

the most common thing to do is reduce screen brightness but is there any other solutions?

i heard Under clocking the processor also helps. but how to underclock the processor?

erm... 2day while i was on9, i saw in a website stating that u could switch from dedicated graphic card to integrated graphic card to save battery(it mentioned the laptop model but i 4get edi, oni remember it's frm dell).

dunno whether it's possible for all laptops.

dunno lea... maybe i got messed up between vaio and dell. =.=" so it's only possible wif certain vaio laptops ar?

i'm not sure bout heat reducing battery life span. i oni know not removing battery when ur not charging will reduce battery life span.

u can use Uninterruptible power supply (UPS) also known as an uninterruptible power source or a battery backup is a device which maintains a continuous supply of electric power to connected equipment by supplying power from a separate source when utility power is not available.

of course need more pow la...