Batteries

[StOjA]

wondering if anyone has had this problem or could fix my problem.

on a few occasions my battery has mysteriously died... my alternator is brand new and i dont leavemy lights on or anything.

it doesnt happend consistantly that is why i am a little confused.....

the batery may be a little small for the car cos i have a pretty powerfull system in it

could this be the reason for my problem?

also could anyone recomend a certain type of batery to buy for my r32 preferably a big one

[StOjA]

cant anybody help me??

have i posted this in the wrong place?

[cowie165]

Well guys need a chance to reply

You may have better luck in the car audio forum. The smallest battery for a standard audio setup would be around 400CCA's.

Have you tested the car on the multimeter to see when it is draining? That might answer whether you have an odd light staying on whilst its parked or whether the audio is draining the battery faster than it can charge?

[Busky2k]

You need to get a parasitic load test on your car whilst its switched off. Anything over 100mA will drain your battery quite fast. Also short trips won't give your battery a chance to fully charge. I suggest buying a "battery fighter" unit from Jaycar and leaving the car on that overnight to keep the battery fully charged.