(S13) Battery keeps going flat (24hrs) - power drain?

**Ripper** · 30-07-2006, 21:52

My S13 will retain the ability to start it's ignition only for about 24hrs after a full battery charging.

I have a new battery fitted as I thought my old one was the cause

I appreciate that auto-electrical problems can take some diagnosing so I am under no illusion as to the potential scale of the problem

However, any suggestions?

I have a Toad full closure system on the car - but why would that begin to start draining electric, if that is the cause?

As ever, any help is appreciated!

Ripper.

**james anderson** · 30-07-2006, 21:58

have you got an amp? mine kept going flat cause it was always powered

**nene** · 30-07-2006, 21:59

This is going to sound silly, but have you left the interior light on?

Also, check the radio isn't doing something silly, unplug it if you have to.

Lastly, check the alternator. If the diode is faulty then the battery could be discharging through it. (Edit - see EL-29)

**arry** · 30-07-2006, 22:01

check the 75A fuse thingy

**Ripper** · 30-07-2006, 22:22

Originally Posted by james anderson

have you got an amp? mine kept going flat cause it was always powered

I am over 25 and have a family.

Do you think I have an amp?

**Ripper** · 30-07-2006, 22:23

Thanks Nene and arry - I'll have a look

**james anderson** · 30-07-2006, 22:33

Originally Posted by Ripper

I am over 25 and have a family.

Do you think I have an amp?

maybe

**tim rome** · 30-07-2006, 23:01

that is some serious drain if its a new battery, but you wouldnt be the first person to buy a new battery that was fecked

**Matty2Fatty** · 30-07-2006, 23:46

Have you got eletric fans?

If so it might be that, mine drain the battery dead in a few minutes

(when the engine is off I mean

**Ripper** · 31-07-2006, 03:26

Originally Posted by james anderson

maybe

Maybe not!

**Ripper** · 31-07-2006, 03:29

Originally Posted by Matty2Fatty

Have you got eletric fans?

If so it might be that, mine drain the battery dead in a few minutes

(when the engine is off I mean

No change to the fan in the last 6 years

Perhaps the new battery is f*cked...

Any other ideas?

**Barryjdart** · 31-07-2006, 06:27

Very doubtful but brake light switch stuck on? Brake light circuit is not controlled by ignition.

**Grim** · 31-07-2006, 08:31

with everything off, disconnect the earth terminal on the battery. if you get a lot of sparks and arcing, then you have a drain.

only the clock, alarm, radio memory etc - low power circuits should be on.

**gomms13** · 31-07-2006, 09:00

disconnect for the 24 hrs then see if it's held charge,that'll tell if battery or not that'll leave a drain from car,good chance not alternator if it's fine after a run

**nene** · 31-07-2006, 11:33

Originally Posted by gomms13

good chance not alternator if it's fine after a run

If the alternator has a faulty diode then the battery will discharge through the alternator when it's not running.

**Prozac** · 31-07-2006, 20:24

My boot light used to stay on and flatten the battery !

**Ripper** · 23-08-2006, 13:46

The brand new Bosch battery was defective

Thanks for all of the advice

A big thankyou from me

**eddie_s13** · 23-08-2006, 15:21

Originally Posted by Prozac

My boot light used to stay on and flatten the battery !

same

**studioworks** · 23-08-2006, 20:46

If i had seen this sooner i would of said to check the new battery. i had the same problem with a cheap run about i bought. When i bought it they had just put a new battery on it yet it kept running flat. After checking everything i could think of i put on an old battery i had and its been fine ever since.

**Ripper** · 19-09-2006, 20:47

.....A brand new knackered battery!

And a Bosch as well.

Got it replaced no problem

As ever, thankyou all for the suggestions

Thread: (S13) Battery keeps going flat (24hrs) - power drain?

Thread Tools

(S13) Battery keeps going flat (24hrs) - power drain?

And the solution is.....

(A bit late) but the answer was (queue drum roll).....

Posting Permissions