Battery boost/charger for lorry

[comet!]

Can anyone recommend a battery boos/charger that I could use on my lorry without having to remove the battery? I cannot jump it from my car as my car battery doesn't have enough room for the large jump leads to attach.

Battery has previously been taken off and charged, replaced and I have an isolator so I think it is just objecting to this cold weather!

Thanks

 

[case895]

Is it 12V or 24V? I have a heavy duty RAC charger which does both. Don't forget to isolate when charging and to put the charger in a waterproof container (e.g. under a bucket).

 

[comet!]

Is it 12V or 24V? I have a heavy duty RAC charger which does both. Don't forget to isolate when charging and to put the charger in a waterproof container (e.g. under a bucket).

Thank you. I think its a 12V but I'll have to get underneath it later and check. It used to have a sticker on saying the V but this fell off last time it was charged

 

[case895]

If there is a single battery, it is 12V. Two batteries = 24V.

Isolate the lorry battery, then plug the charger in to the mains (that earths everything), but do not turn the charger on. Connect the negative (black) to the battery, then the positive (red). Finally switch the charger on. The ammeter should jump to around 6A and stay there for about an hour. It then drops to around 2-3A for several hours. Leave it charging for at least 12 hours.

If it fails to start again within a week or 2, it may the battery is dead, or the alternator is not charging. I had to replace the battery on my tractor yesterday as it failed to start after being trickle charged 2 weeks ago.

 

[comet!]

If there is a single battery, it is 12V. Two batteries = 24V.

Isolate the lorry battery, then plug the charger in to the mains (that earths everything), but do not turn the charger on. Connect the negative (black) to the battery, then the positive (red). Finally switch the charger on. The ammeter should jump to around 6A and stay there for about an hour. It then drops to around 2-3A for several hours. Leave it charging for at least 12 hours.

If it fails to start again within a week or 2, it may the battery is dead, or the alternator is not charging. I had to replace the battery on my tractor yesterday as it failed to start after being trickle charged 2 weeks ago.

Thank you, that's really helpful.