battery not holding a charge??

ianzxr400L3 · Post by **ianzxr400L3** » Tue Feb 10, 2015 7:42 pm

during the day it starts fine! Put my lights on at night and turn engine off and battery totally dead?
new battery didn't cure problem?
Could it be alternator?? Or reg?

ianzxr400L3 · Post by **ianzxr400L3** » Tue Feb 10, 2015 9:05 pm

New battery and still not holding a charge??
Could it be the reg or alternator??

Post by **Miles** » Tue Feb 10, 2015 9:56 pm

Measure the voltage across the battery with the bike running, can't remember what rpm, should tell you if the alternator's producing current

ianzxr400L3 · Post by **ianzxr400L3** » Tue Feb 10, 2015 10:01 pm

Do I just put a volt meter on the + and - and take the readings??

CaNsA · Post by **CaNsA** » Wed Feb 11, 2015 1:18 am

Yup.

Let us know what the reading it @ idle and @ 6k rpm.

ianzxr400L3 · Post by **ianzxr400L3** » Wed Feb 11, 2015 7:00 am

Will do I get home at 6 pm I'll try it then

RedexRobB · Post by **RedexRobB** » Wed Feb 11, 2015 7:04 am

Get a volt meter out and stick your leads across the battery and see what it reads across the terminals. More than likely the reg/rec.

Full test is in the manuals.

Post by **banner001** » Wed Feb 11, 2015 12:54 pm

Do the test above, then test the alternator.

Set a multimeter to AC and range it for 50V, disconnect the alternator from the loom and you will have 3 pins in a black connector block, test the voltage between pairs of pins at 3k rpm, the voltage should be around 45V AC on all three pairs of pins, if this is ok but your bike won't charge then either your reg rec is dead or you have a damaged wire going from the reg rec to the battery.

ianzxr400L3 · Post by **ianzxr400L3** » Wed Feb 11, 2015 6:39 pm

Cheers guys will let u know

ianzxr400L3 · Post by **ianzxr400L3** » Thu Feb 12, 2015 3:15 pm

across battery it's 14.4 volts? So does the mean tbealternator is ok??

Post by **banner001** » Thu Feb 12, 2015 10:23 pm

Looks ok to me, I would make sure to check that the battery charges to 14V with the engine running and the lights on.

I would also check voltage in the morning, and after not using the bike check it in the following morning to check the voltage drop if there is a small drain somewhere.

You're not leaving your parking lights on are you?

ianzxr400L3 · Post by **ianzxr400L3** » Fri Feb 13, 2015 6:56 am

No parking light lol I'll take readings in morning.
it seems fine for few days then it's doesn't even want to start totally dead

this has only happened 3 Times in 4 weeks???
Thanks for advice

ianzxr400L3 · Post by **ianzxr400L3** » Fri Feb 13, 2015 7:04 am

Bbattery over night with engine off is 12.75 volts with lights and engine on 14.7 volts??
Seems good to me and that's with alarm on over night as been switching it off just incase it was taking a drain?

Post by **banner001** » Fri Feb 13, 2015 2:07 pm

so your battery is charging, and is holding a charge...so im not sure what you ment now in your initial post?

ianzxr400L3 · Post by **ianzxr400L3** » Fri Feb 13, 2015 5:48 pm

Not every ttime now and again it is totally dead?

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