[Andybaby]

this is something i learned with my cell phone, charge whenever you need it (i need it almost every night, or if i dont use it much, once every 2 days)

dont leave it in the charger for more than over night....THIS IS VERY IMPORTANT WITH LAPTOP BATTERIES. if you want the laptop to last, dont leave it plugged in. NEVER leave it pluged in while your using it one your lap, the cords in laptops are very sensitive (comparitivly) and the wires inside get frayed/broken and this can lead to you not being able to use your laptop while you wait from the Warrenty, or you have to spend 40-80 bucks on a new charger. with certain 3 pin chargers (dells mostly ive noticed) there is this little pin on the inside that says, Hey im a Dell Charger, if the wire gets frayed (its very small, maybe 22-24 guage on the inside of a 10-14 guage charger) or that pin gets pushed into the charger head (happened 6 times to my brother and friends with dell laptops, 4 frays and 2 pushins, ive only recently been fixing the frays by soldering cause their warrenty expired) the laptop will turn on, but not charge the battery


as for my PRS 700, if i have 2 bars or less, and if im going to sleep. i throw it on the chrager. if i have 3-4 bars i leave it off.