battery discharge

[(RIP) pastyman]

When I got my g/s the battery was knackered so I put a new one on it from Motorworks, everything works fine except that it does not seem to hold its charge, either that or somehow it is discharging whilst sitting in the garage. Not being partcularly well up on electrics, I cant see a way to check where the " leak" could be. It has got a clock on it but I have tried disconnecting that with no improvement.My 100 will still start fine after leaving it for weeks but the g/s is dead within a couple of days. Any ideas please

 

[John Armstrong]

Tried charging the battery up and then pulling fuses out one by one. Doing it day by day and replacing the previous fuse.

Or if you're up to using a multimeter, connecting the meter in series by disconnecting one battery lead, and then pull a fuse out one by one. PS don't hit the starter button as it'll probably fry your multimeter

 

[nud1e]

Had the same problem with my R75/6, and took to disconnecting the battery. Found that one of the diodes in the rectifier had gone short. I think that this fried the starter solenoid as well. Replaced the diode board and no further problems.

 

[(RIP) pastyman]

Tried charging the battery up and then pulling fuses out one by one. Doing it day by day and replacing the previous fuse.

Or if you're up to using a multimeter, connecting the meter in series by disconnecting one battery lead, and then pull a fuse out one by one. PS don't hit the starter button as it'll probably fry your multimeter

Hmmm , There are only two fuses on the g/s, Im not sure what this will show up. I do have a multimeter, so let me get this right, If I connect up as you suggest, then presumably if the ignition is off, the meter should read zero. If it doesnt then I pull out a fuse to identify which circuit may be at fault, Right.. Ill give it a try.

 

[(RIP) pastyman]

Had the same problem with my R75/6, and took to disconnecting the battery. Found that one of the diodes in the rectifier had gone short. I think that this fried the starter solenoid as well. Replaced the diode board and no further problems.

wouldnt this affect the charging . Mine seems to be OK and starts just fine when the battery is charged.

 

[John Armstrong]

And if the fuse removal doesn't stop the discharge, then disconnecting the power lead on the "service" unit will do the same. IIRC though the problem with older electrical systems can be bad earths, causing all sorts of electrical malarky