What's wrong here, battery or alternator?

DrFarkoff · Jul 29, 2013

You will have voltage surges etc with bad batteries plus your meter probably isn't calibrated?

If you have any fear fit one of these little jobbies

http://www.ebay.co.uk/itm/200627678428?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649

(RIP) Miff · Jul 29, 2013

muppix said:
Long story short:

Feck me. I'd hate to see you cut a short story long

muppix said:
Time for the multi tester. Before starting the battery reads 12.5V (connected to bike), dropping to a measly 6V once the ignition is on.

I think this is a clue :thumby:

Sot1200 · Jul 29, 2013

Beemerman59 said:
If you're getting +14v across the battery with the engine running the alternator's good.

My opinion=battery.

I agree. Battery. It will start after removing from charger but that does not mean it holds on to charge for long.

Ian J Hartley · Jul 29, 2013

muppix said:
It's had one battery from new, nearly 6 years old

Mup

Edited to the important bit.

Says it all :thumb2