What should a good battery voltage be?

p.s cheers for all the help. i appreciate it.

I replaced my stator today and low and behold I now have 14V at 5k rpm!! Upon examination of the stator that came out it was clear what had happened. One of the coils was black and charred at the top, indicating that it was getting extremely hot and probably melted the wiring causing a short to earth. I added a picture as an attachment. Hope you can see it.

Thanks to all who helped in resolving this problem!! Now, what to do with the 2 rec/regs that turned out not to be the problem... Anyone out there need a good used rec/reg???

[yorkie_chris]

Thats a conclusively knackered stator...

Would you hold a reg/rec for dizzyblonde, hers is suspect at the minute.

Chris

Originally Posted by yorkie_chris

Would you hold a reg/rec for dizzyblonde, hers is suspect at the minute.

Sure. They'll be sitting around the garage for a while.

Well my new reg/rec turned up today. Just fitted it and now i am getting a reading of over 14V whith the lights on and running at 5000rpm.

: smt041:s mt041:sm t041

FINALY MY PROBLEM IS SOLVED.

: smt041:s mt041:sm t041


THANK YOU TO ALL THAT HAS HELPED ME THROUGH THIS TRAUMATIC TIME.

Originally Posted by andyharding

Well my new reg/rec turned up today. Just fitted it and now i am getting a reading of over 14V whith the lights on and running at 5000rpm.

: smt041:s mt041:sm t041

FINALY MY PROBLEM IS SOLVED.

: smt041:s mt041:sm t041


THANK YOU TO ALL THAT HAS HELPED ME THROUGH THIS TRAUMATIC TIME.

Yep and if you learnt that battery voltage means **** all. When checking a battery you need to see if it's internal resistance has gone up since new as this will show up how stuff a battery is.

Originally Posted by SVspeedr

I replaced my stator today and low and behold I now have 14V at 5k rpm!!

BUT WAIT!!! First day out and I get a dead battery again!! Out comes the multi-meter and the stator continuity test looks OK. 0.5 ohms between all 3 leads and infinite between any lead and earth. I can't test the "no load" voltage yet because I can't get it started but just barely cranking it I'm getting a volt or two. Now, the new stator is slightly smaller diameter than the factory unit but I can't see that having any effect. I've put the battery back on charge so I can retest the regulated voltage again with a fully charged battery, but somehow I suspect I'm not going to see 14V this time. What could have gone wrong???

[yorkie_chris]

Could be some other system overloading the stator

[Biker Biggles]

Are you saying your battery went flat between last night and this morning?If so you either have a shaggid battery or there is a system drain when everything is switched off.Like the parking light staying on?

Originally Posted by Biker Biggles

Are you saying your battery went flat between last night and this morning?If so you either have a shaggid battery or there is a system drain when everything is switched off.Like the parking light staying on?

There is definatly something drawing current from the battery. Is the bike alarmed (alarm could be faulty and drawing current), Is the battery faulty. Remove the battery and charge it till its full. Then unplug it and leave it off the bike. Keep checking the voltage. If it stays the same then the promblem is with the bike.