Charger charging lead acid 12v battery?

[BrianG]

Of course, the battery you use to power the charger will have to have more Ah capacity than whatever battery you are charging, depending on the pack voltage too.

You can use a cheap modded PC power supply if AC is available, or use your car battery as long as you're not charging packs all day.

[Superbasher]

I forgot about that MAH thing! As the ansmann has a 5amp charge limit. I may end up not bothering, as most bashes I got to there is a power supply there.