i have a Acer 4520 and recently the battery life has gone to about 15 mins. I always leave it plugged in to the charger im thinking i smoked the battery.
False. It depends on the battery type. The newest Lithium Ion batteries do not show the 'memory' effect found in old batteries. The more likely cause is your battery is just old and unplugged or plugged in this entire time you would probably still have a vastly reduced battery life. Most laptop batteries (again depending on the type) only last about 1 to 2 years.
ah ok ive had it probably almost 2 years now. So i guess its time for a new one, where can i find a new one? Would newegg have them or do i need to go thru Acer?
Just make sure you get one that is rated for your laptop that is the same wattage. Generally speaking with laptop batteries I always go through the original manuf. (acer in your case). Doesn't mean you can't get it from other manf. or places, I just don't want risk getting an incompatible battery. Because if you get the wrong one you risk the battery exploding or possibly leaking corrosive acid - not worth the 20 dollar savings IMO.
If it's DDR2, then it's gonna be 200 pin DDR2. And, yes you can use 4GB RAM with XP, but assuming it's 32-Bit, it will only recognize +/-3.5GB of your RAM.
If it's DDR2, then it's gonna be 200 pin DDR2. And, yes you can use 4GB RAM with XP, but assuming it's 32-Bit, it will only recognize +/-3.5GB of your RAM.