battery/charging

rtmarengo59 · 05-05-2008, 12:29 PM

you guys did such a great job solving the carb fuel leak. Now I need a charging poblem fixed.

I charged the battery and holds the charge as long as I am riding. Once it sits overnight it's dead. I checked the charge voltage and it showed 11v on idle and stayed the same with increased rpm. I went to check it again a little later and it no voltage. Bad battery, bad rectifier or both?

culcune · 05-05-2008, 12:38 PM

These batteries (I am assuming stock) aren't the greatest--start there.

theENIGMATIC · 05-05-2008, 09:47 PM

You probably did but if not make sure you top up the battery to the fill line with distilled water before you charge...I cant think of any other reason you have that prob unless the battery is dead or leaking?

IronFist · 05-05-2008, 10:05 PM

11v across the battery terminals, as you increase rpms is not good. Well not if it was me. I'd be looking for 12.5. My old cb350 gets 14v at 4000rpm. Have you been blowing bulbs? If not, I'd be looking at my rectifier, if I were in your shoes. But other, better mechanics are sure to help you out.

ejcycles · 05-06-2008, 07:42 AM

Charging systems should put out at the battery posts 13.5-14.8 volts while the engine is running at 3000 rpm. If you have a fully charged battery {12.8 volts}, your charging system will be almost the same at idle.

If you filled and charged your battery correctly, this means filled it with acid, let it sit fore two hours, then charged it with a 2 amp or under Trickle charger for at least 8 hrs. before installation in the bike, the battery should be OK. If you didn't use this procedure to activate the battery... most likely it's junk, buy a new one and check the charging system.

Charging systems will not show the correct voltage output with a bad battery.

IronFist · 05-06-2008, 11:27 AM

That's what I meant to say. :roll:

theENIGMATIC · 05-07-2008, 10:31 PM

Is the elec starter giving you probs???
Is the charging system still running all your lights and stuff?

05-05-2008, 12:29 PM	#1
rtmarengo59 Join Date: May 2008 Posts: 4	battery/charging you guys did such a great job solving the carb fuel leak. Now I need a charging poblem fixed. I charged the battery and holds the charge as long as I am riding. Once it sits overnight it's dead. I checked the charge voltage and it showed 11v on idle and stayed the same with increased rpm. I went to check it again a little later and it no voltage. Bad battery, bad rectifier or both?
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05-05-2008, 12:38 PM	#2
culcune Join Date: May 2006 Location: Yuma, Arizona Posts: 9,035	These batteries (I am assuming stock) aren't the greatest--start there. __________________ "They say that life's a carousel, spinning fast you got to ride it well..." TGB Delivery Scooter 150 TMEC 200 Enduro--carcass is sadly rotting in the backyard
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05-05-2008, 10:05 PM	#4
IronFist Join Date: Apr 2007 Location: Toronto Ontario Canada Posts: 2,585	11v across the battery terminals, as you increase rpms is not good. Well not if it was me. I'd be looking for 12.5. My old cb350 gets 14v at 4000rpm. Have you been blowing bulbs? If not, I'd be looking at my rectifier, if I were in your shoes. But other, better mechanics are sure to help you out. __________________ IronFist ___________________________________ The "chain" of command is used for beating spammers. ___________________________________
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05-06-2008, 07:42 AM	#5
ejcycles Join Date: Oct 2006 Location: 11481 State Route 44 Mantua, Ohio 44255 Posts: 1,112	Charging systems should put out at the battery posts 13.5-14.8 volts while the engine is running at 3000 rpm. If you have a fully charged battery {12.8 volts}, your charging system will be almost the same at idle. If you filled and charged your battery correctly, this means filled it with acid, let it sit fore two hours, then charged it with a 2 amp or under Trickle charger for at least 8 hrs. before installation in the bike, the battery should be OK. If you didn't use this procedure to activate the battery... most likely it's junk, buy a new one and check the charging system. Charging systems will not show the correct voltage output with a bad battery. __________________ Thanks, Bruce @ Endless Journey Cycles "Phone Calls Only" ~330-274-0098~ Hours: Tue.-Fri. 10:00-6:00 Sat. 10:00-4:00 EST. Dealer for: Lifan, Crossrunner ATVs. http://www.endlessjourneycycles.net
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05-06-2008, 11:27 AM	#6
IronFist Join Date: Apr 2007 Location: Toronto Ontario Canada Posts: 2,585	That's what I meant to say. :roll: __________________ IronFist ___________________________________ The "chain" of command is used for beating spammers. ___________________________________
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05-05-2008, 09:47 PM	#3
theENIGMATIC Join Date: Feb 2008 Posts: 392	You probably did but if not make sure you top up the battery to the fill line with distilled water before you charge...I cant think of any other reason you have that prob unless the battery is dead or leaking?
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05-07-2008, 10:31 PM	#7
theENIGMATIC Join Date: Feb 2008 Posts: 392	Is the elec starter giving you probs??? Is the charging system still running all your lights and stuff?
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