Check out this thread: FS on Ebay 12VDC 5.1Ah Ignition Backup Battery
I just bought 3 of them.
So Circuits then........ does anyone have a suitable charging circuit to recharge my dry cell motorcycle batteries in the back of my car which will power my carputer and which I also plan to power my coolbox in the summer...
I have already run a cable from the alternator (with a relay in so as not to draing off main battery when parked up)
if I was using a regular leisure battery I could just connect it right up but I am told this is not the case with the sealled type...
All ideas welcome -
Audi A6 1.9Tdi
Pioneer AVH-P6500 DVD HeadUnit
Pioneer AVIC 800 DVD Navigation