Persistant Battery Flattening Problem

[mark_rushforth]

Hello peeps, can anyone shed any light on this.

If i don't run the car regularly ,leave the alarm armed(also 24hr tracker fitted)and leave it 4-5 days without starting, the battery runs flat.

Took it to Eden Subaru about 3 months ago and explained the situation, they checked it out(thanks russ)and couldn't find anything wrong so just charged it 4 me. They said that on post 03 cars they are equipped with smart-charge which only charges the battery a certain amount.

Is this the norm with the newer models or is it a new battery required.

Any help most appreciated as it's getting right on my tits! cheers.

[AlanG]

Could be the battery back-up in the alarm system which is draining the car battery. What is happening is the battery in the alarm, cause it isn't holding a charge, constantly tries to charge itself up on the main battery.

Only cure is a new battery for the alarm back-up.

Not sure if it's DIY or not but wouldn't think so, being a Cat 1 alarm.

Worth suggesting to your dealer.

[mark_rushforth]

Thanks for that, will let the garage know when i book it in for a service next month, get them to look into it.

[john_wilson5]

I am a newbie to this , so only seen your message tonight. Had the same problem. RAC Trakstar fitted to car was pulling too much power from main battery, I had to have the unit replaced via Trakstar. This was a fault found in the Trakstar unit. Eventually the car was taken to Halleys where RAC Trakstar replaced the unit free of charge. I have an 04 plate STI. Trakstar admitted to the fault. This may be the same problem you are having. Hope this helps.

[evobaz]

If you're not using the car regularly and have a garage with power in it invest in a Draper Battery Master (£20 from Halfords).

Open bonnet.

Attach 2 crocodile clips to battery.

Close bonnet.

Plug in Battery Master.

Job done. Car will start first time no matter how long you leave it.