Flat Battery

[hukent]

tried to take the 3200 out for run today, but the battery was flat after 6 weeks of sitting in the garage?
Even though I turned off the battery at the isolater switch?

 

[mjheathcote]

Duff battery if can't hold its charge when disconnected.
Bosch silver S5 for less than £100, and keep the receipt for the 5 year guarantee!

 

[Tom4200]

Had the same buy a brand new battery if it's not being used as a daily!

 

[hukent]

Battery is BRAND new, must have some drain even when isolated?

 

[Contigo]

Battery should not got flat if properly disconnected imo unless faulty. What voltage does it measure? For me disconnecting is not the answer, it should be left on a conditioner/trickle charger.

 

[Trev Latter]

Battery is BRAND new, must have some drain even when isolated?

Easy way to check - disconnect earth cable and connect a low powered bulb between earth lead and battery negative. If if lights up with the battery isolator switched off, you have a drain somewhere. Have you got any cables connected to the battery positive terminal other than the cable that goes to the isolator switch? You "may" have some wiring for alarm/immobiliser/tracker that could be causing a discharge.

 

[voicey]

Usually there are circuits kept connected even though the isolating switch has been turned! The easiest way to check is with a clamp on DC ammeter round one of the battery cables.

 

[CatmanV2]

Usually there are circuits kept connected even though the isolating switch has been turned! The easiest way to check is with a clamp on DC ammeter round one of the battery cables.

I'm near as **** it 100% sure there aren't on a 4200. You can see the earth cable from battery to body via switch.

C

 

[alfatwo]

Easy way to check - disconnect earth cable and connect a low powered bulb between earth lead and battery negative. If if lights up with the battery isolator switched off, you have a drain somewhere. Have you got any cables connected to the battery positive terminal other than the cable that goes to the isolator switch? You "may" have some wiring for alarm/immobiliser/tracker that could be causing a discharge.

There is a constant 0.75 amp discharge on the 3200 immobiliser/alarm ECU as it always needs to be active for any circiut changes when you start pressing of the key flob!

These things were designed to be used every day, not parked up for weeks on end

Dave

 

[StuartW]

It could just be a bad battery though. It has happened to me before with a brand new Varta battery but I changed it for a Bosch S5 as suggested above and all was fine

 

[highlander]

Battery should not got flat if properly disconnected imo unless faulty. What voltage does it measure? For me disconnecting is not the answer, it should be left on a conditioner/trickle charger.

^^^what he said^^^
I also turned marci over weekly through out the winter for 20 min just to get the fluids moving........and a little Rev at end to put a smile on my face

 

[Contigo]

Just had my exhausts done! Smiling does not explain how I feel right now

 

[BennyD]

It that because it started?

 

[miket]

Steady!

 

[davy83]

My 3200 also goes flat when left for about 3-4 weeks even with the isolator off, i use a C-tek battery charger conditioner thingy to keep it charged. I think 3200's are not good for batteries i am on my third new battery in over 7 years, which on any other car would be a problem! Hey its Italian!

 

[davy83]

Well actually now i read that its the battery that goes flat, the car is the same size. i had a Citroen Zantia once that did collapse when left which was always a good party trick!!