battery keeps going flat

Post Wed Sep 12, 2012 2:19 pm

Wondering if this is a common e30 issue? Its either the battery is buggered, theres somehow a drain ( possibly my amp/stereo have been zapping power? ) Any ideas?

Post Wed Sep 12, 2012 2:29 pm

Try searching the forum. This comes up regularly.

Ben

Post Wed Sep 12, 2012 3:01 pm

1) Why not in Tech section?

2) Why not check the Wiki? (http://www.e30zone.net/e30zonewiki/inde ... n_Problems)

3) Are you even driving the car yet?

Post Wed Sep 12, 2012 3:30 pm

I dont get this whole beef bah wrong section. If theres a section for every single thing WTF is the general section for. The car is turned over every few days theres no reason it should be going flat. And i didnt think the wiki would include that

Post Wed Sep 12, 2012 3:38 pm

lol always read the wiki verde and if you come on and ask a question before reading the wiki and the info is availible in there then you will be beaten.

my old one did it quite abit mate, have you tested the batts ok first of all?

Post Wed Sep 12, 2012 3:52 pm

Not yet thats my first assumption that the battery is just fucked

Post Wed Sep 12, 2012 3:55 pm

mine used to do that, it turns out the amp was draining it

Post Wed Sep 12, 2012 4:04 pm

If all you're doing is turning the engine over, then your battery will go flat quickly. It takes quite a while to charge a battery back up to replace the power you suck out when cranking.

Post Wed Sep 12, 2012 4:12 pm

Grrrmachine wrote:If all you're doing is turning the engine over, then your battery will go flat quickly. It takes quite a while to charge a battery back up to replace the power you suck out when cranking.

Ideally the car needs to be driven for a good few miles....I'm guessing the OP doesn't have his license yet though?

Post Wed Sep 12, 2012 4:19 pm

Correcto, test is on the 20th. It really does need taken for a food 50-100 mile blast to.blow the cobwebs out

Post Wed Sep 12, 2012 4:37 pm

I had this problem when i was building mine ;) battery is fine now just take it for a sesh!

Post Wed Sep 12, 2012 4:51 pm

its going for its mot next week so il make sure to ring its neck a bit and get it properly charged

Post Wed Sep 12, 2012 4:58 pm

Grrrmachine wrote:1) Why not in Tech section?

2) Why not check the Wiki? (http://www.e30zone.net/e30zonewiki/inde ... n_Problems)

3) Are you even driving the car yet?

Fook me, I forget it's a forum half the time

Get a multimeter across the terminals and see if you have any sort of drain

Post Wed Sep 12, 2012 6:33 pm

You've probably got a slight drain. Until you get it checked out/can be arsed to do it yourself - and you don't mind your alarm being unplugged - just disconnect the battery terminal at night. Chance your regulator has gone two, with the car being old sods law can be quite common. Check the wiki.

Post Wed Sep 12, 2012 7:10 pm

ross_jsy wrote:
Grrrmachine wrote:1) Why not in Tech section?

2) Why not check the Wiki? (http://www.e30zone.net/e30zonewiki/inde ... n_Problems)

3) Are you even driving the car yet?
Fook me, I forget it's a forum half the time

Get a multimeter across the terminals and see if you have any sort of drain

A multimeter across the terminals will not tell you if you've got a drain. You need an ammeter in series as you're looking for a few milliamps of current. A voltmeter across the terminals will not tell you this, but it can be used to show a volt drop if a large current (tens of amps) are being drawn.