Ducati Sporting Club UK > Model Specific - Discussion, Technical Problems and Help > 998 / 996 / 916 / 748 > Help overvoltage?

[fatduke11111]

The Bip has been really slow in turning over so I thought I check the normal stuff like voltages (to see if the regulator has not gone awol) - I've got some very strange readings from the digi voltmeter.

Across the Battery getting 12.9 - 13.0 v no engine running
At tickover I was getting 16.5 - 16.7v and above 3k rises to around 17.4v?

This sounds a bit odd to me - the starter still turns over like a dog though and after a spins won't turn the engine over at all - any thoughts, anyone?

P.S. the connectors look good from the regulator i.e. no burning or crap....

FD

[Felix]

If you're measuring this across the actual battery posts/terminals, then I would think the battery's had it. A good battery would allow the voltage to rise that far. It would absorb it as a charge.

[fatduke11111]

Felix:-

Yep, across the terminals...good point I'll nick the batt off me ST and try it out.

I noticed that the +ve to the starter solenoid was a bit warm as well! I've also just changed +ve, -ve leads as well so I'll see what happens....ta...

Seems to spin a bit better.

FD

[fatduke11111]

...I changed them to a higher guage not swapped them over......

[rockhopper]

Knackered regulator putting out 17 volts has wrecked the battery. Swapping batteries will just wreck the new battery as well.