Flat battery

[Ford99]

Hello guys,
My son's away in training and has left his XR8 with me to care for. I've had it sitting for almost 5 weeks, tried starting it up but went...click click click click. Seems like the battery is flat. I'm not to familiar with V8. Should I simply jump it up? Should I remove battery and get it charged for few hours?

[GT450]

It needs to be charged, I use a trickle charger permanently connected so I don't have this occur as I use it infrequently at times. These cars are sensitive to low voltage so once you charge it try and un it once a week. Good luck.
GT450

[Ford99]

Thanks for your advice GT450...got the battery on charge since morning and will put it back on bout 4ish...it's looking good.

[GT450]

Oh I should have mentioned , never ever leave the keys in the ignition, even when off, as it's a sure way of flattening the battery to a level where you will need a jump battery to even get it to take a charge.
I forgot to remove them at one time and flattened a nearly new battery, hence why i now leave the trickle charger permanently connected.
GT450

[DJR MAN]

Originally Posted by GT450

Oh I should have mentioned , never ever leave the keys in the ignition, even when off, as it's a sure way of flattening the battery to a level where you will need a jump battery to even get it to take a charge.
I forgot to remove them at one time and flattened a nearly new battery, hence why i now leave the trickle charger permanently connected.
GT450

I was not aware of that - how can leaving the key in flatten the battery?

[GT450]

If you don't remove the key completely it will keep some of the modules alive which I can assure will drain your battery if you do not use it for some time. the key needs to be removed to shut down entirely.
GT450

[Ford99]

Thanks...had the battery on charge for approx. 8 hours (was a new battery that when flat) and it's back on all systems working ok.