Topic: Battery Drain (Read 3361 times)

STUARTF · « **on:** April 14, 2013, 09:11:17 AM »

Morning has anyone had a problem with battery drain on a WJ. Ive had the starter,battery and alternator checked all ok. Leave it a few days and then need to jump start it. If I have to I will but an isolator switch on the battery but would really like to solve the hiccup. So if anyone has had an identical problem would really like to hear please

Stuart

Cockney Boy · « **Reply #1 on:** April 14, 2013, 09:16:59 AM »

What's the battery draining when standing still? If its drawing Anymore than 700ma then you've got something like a faulty radio/immobiliser or could be engine management related.

Get a multi meter and do an amps test before you do anything else. Also even tho the battery checked out you might want to try a different one

Dutch · « **Reply #2 on:** April 14, 2013, 09:25:04 AM »

Interior light set/dim switch ? one notch too high and it drains the whole show.

STUARTF · « **Reply #3 on:** April 14, 2013, 09:26:14 AM »

Took the truck to a good garage who works on my cars (reputable) yday and he says battery (4 months old) alternator and starter A1.

STUARTF · « **Reply #4 on:** April 14, 2013, 09:27:26 AM »

Nice one Dutch will try that tonight

STUARTF · « **Reply #5 on:** April 14, 2013, 10:12:15 AM »

Battery Test information slip
VOLTS 12,26V
MEASURED 501A EN
RATING 5704 EN

STARTER 10.56V

CHARGING TEST 14.12V

Cockney Boy · « **Reply #6 on:** April 14, 2013, 01:27:02 PM »

That's all great but what is the truck drawing when at rest? Report back please

STUARTF · « **Reply #7 on:** April 14, 2013, 01:28:59 PM »

Will have to go back to garage for that figure !

Cockney Boy · « **Reply #8 on:** April 14, 2013, 03:12:14 PM »

If you've got a multi meter then you can do it yourself

bigjeepzj · « **Reply #9 on:** April 14, 2013, 04:04:02 PM »

put an ammeter in series with the poss terminal of the battery and see what you get

STUARTF · « **Reply #10 on:** April 14, 2013, 04:28:26 PM »

Spanners and hammers yes, electrikery nowt.

bluevanman · « **Reply #11 on:** April 14, 2013, 10:21:34 PM »

it could be the alternator diode it'll still show a charge. failing that check the silly stuff like glovebox/underbonnet light staying on you'll be amazed how many times they've been at fault.

STUARTF · « **Reply #12 on:** April 15, 2013, 08:19:38 AM »

Hi BVM ive cheched all lighting and nothing on when car stationary. Cheers though.

bgbazz · « **Reply #13 on:** April 15, 2013, 08:28:07 AM »

Just a thought..I had a similar problem a while ago. It turned out to be a cd changer, under the back seat, had been wired in wrong..radio could be turned off, but changer still had power going to it...flat battery after three days!!

STUARTF · « **Reply #14 on:** April 15, 2013, 11:57:29 AM »

Dont have one of those

bgbazz · « **Reply #15 on:** April 15, 2013, 12:10:24 PM »

Ok..cross that idea off the list.

daggie · « **Reply #16 on:** April 15, 2013, 06:31:43 PM »

had this with mine, twas the battery

put a new battery on it, been fine ever since !
I still have the old battery here still got 12/13 volts still won't start the jeep,

go figure

MOCAJ · « **Reply #17 on:** April 15, 2013, 07:17:56 PM »

its the current the battery will supply when loaded, volts at rest means nowt

daggie · « **Reply #18 on:** April 15, 2013, 07:29:18 PM »

I know that

but does stuart

and his tester mate

bluevanman · « **Reply #19 on:** April 15, 2013, 09:44:33 PM »

i'd get the battery "load tested" then if that's ok get a reading of the battery then reconnect the leads then take another next step remove the fuses one at a time till you find the faulty circuit

Eclipsed4ever · « **Reply #20 on:** April 15, 2013, 09:46:26 PM »

My uncle had a very similar problem. Been looking for the problem for ages.

You could try pulling one fuse at a time until you narrow it down to the culprit. Time consuming but you'll get there in the end.

bigjeepzj · « **Reply #21 on:** April 15, 2013, 10:21:54 PM »

a battery can get memory effect if your just doing short runs a then not using the car
the battery only remembers that it has a short charge capacity

Author Topic: Battery Drain (Read 3361 times)

Cockney Boy

Cockney Boy

Cockney Boy

bluevanman

bluevanman

Eclipsed4ever