My battery looks fairly old... For a while now I have noticed that when I have my lights on, or the more eletrical things I run in my car tends to drop the idle a little more... For example, I start my car in the morning, when the idle drops to normal, It usualy hovers around 800-900 RPM's... but when I turn my lights on... it drops 100 rpm's... then if I turn on the rear defroster.. it drops another 100 rpm's... Putting the idle around 600 RPM's... So a really shakey idle... I have found that when I charge the battery for a couple of hours on a trickle charge it doesnt do it... but only for a day... Do I need to get a new battery sometime soon? Or is this something else?
