Please help!

[guru]

If it takes a few minutes you're probably not using the right leads or a beefy enough power supply
Obviously with thin jump leads be very careful about leaving them connected for any length of time as they will get pretty hot and at worse could cause a fire or other bad things.

[Ritchy]

Originally Posted by guru

If it takes a few minutes you're probably not using the right leads or a beefy enough power supply
Obviously with thin jump leads be very careful about leaving them connected for any length of time as they will get pretty hot and at worse could cause a fire or other bad things.

Depends how flat the battery is, if its mega flat will take a minute to cgarge up, better to let it vharge first then try it otherwise your drawing probably over 60Amp through the leads and your own alt/battery

[guru]

Originally Posted by Ritchy

Depends how flat the battery is, if its mega flat will take a minute to cgarge up, better to let it vharge first then try it otherwise your drawing probably over 60Amp through the leads and your own alt/battery

That maybe true, but most people will use poundland jump leads which after a minute will be cooking, so may be a little dangerous to advise that. With my big leads I'm yet to find anything that wouldn't start first time and that includes my Rover Sterling which started first hit after being sat for over 3 years and so way very flat! I do follow the old advice though of turning on the lights, fans, demister etc in the source car to mop up the additional current when you disconnect the cars.