Meh I guess I am stuck in quite a predicament here.

I have a carport which I park both my cars.

I park my work car up at front and my MR2 behind it.

The only way for my work car to get out is by moving my MR2 out of the way.

I was outside fixing the lights and foolishly forgot to switch the lights off.

I left it for around 3 hours MAX.

When I went down I noticed something weird and found out the problem.

The battery warning light is on and I can't start the car.

Strangely enough the alarm still works find just anything to do with the car doesn't.

Does this mean my battery is konked or my alternator not charging it properly? Batterry can't be dead with just lights on in 3 hours.

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Also, what should I do now? Since my work car's bonnet is facing the other way there's no way I can jump start it.

I am thinking of heading to Halfords to buy one of those recharging kits that plugs into mains and most probably a new battery.

Is that a good idea?