Charging a jump starter

Submitted: Tuesday, Feb 09, 2010 at 11:37
ThreadID: 75897 Views:11129 Replies:3 FollowUps:2
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Hi folks
I have a Projecta battery pack/jump starter. I've had it for a few years and have found it very handy when camping and 4wd'ing. I use it to power the 12 volt light in the tent, the portable compressor and various other uses. The tiny 240 and 12 volt chargers supplied with it gave up the ghost some time ago. Since then I have been charging it with a 4amp projecta charger(240 obviously). I simply connect the alligator clips on the charger to the corresponding alligator clips on the battery pack. This is a bit of hit and miss and I usually just give it about 12 hours, take it off, leave it for a while and the check the voltage on a meter. If it's somewhere around 13.4 that will do. Not great I know - but it works for me.
My problem is this. We are going on an extended offroad trip this year and I expect that the more frequent use involved will probably mean that the pack needs recharging at some stage before we get back to civilisation. I am running a vehicle with one of Derek's Flyer setup's as a second battery(120ahAGM). Can I just connect the alligator clips on the battery pack to the corresponding poles on the Flyer and effectively make the pack a third battery in line and charge it up that way. It seems a much more appropriate way of charging than running my charger through the inverter and then connecting the pack to that.

thanks in anticipation

teege
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