WR450 dead battery


10 replies to this topic
  • WRLuisSa

Posted January 15, 2014 - 12:04 PM

#1

Hi everyone,

 

I must have forgotten to switch off the ignition last time (one week ago) I rode the bike and the battery went dead since the lights stayed on probably.

I had to kick start the bike to run it but after five minutes I switched it off, but still not enough charge to start the bike with electric start.

 

My bike is a 2013 WR450, it has only 500 miles and the battery never went dead before (always started great first time with electric start).

 

Do you think I need to ride it for a while for it to charge properly?

Do you think the battery is completely dead as in, will I need a new one?

 

 

Thanks

 



  • woods-rider

Posted January 15, 2014 - 01:01 PM

#2

It will need to be run for more than 5 min to charge the battery, that's for sure, or hook it up to a battery charger.

 

Completely draining a battery isn't good for it, but I drained the stock battery on my 2006 WR450 a dozen or more times over the course of 5+ years before it eventually bit the dust so yours should come back after it gets a full charge.


Edited by woods-rider, January 15, 2014 - 01:03 PM.


  • Krannie McKranface

Posted January 15, 2014 - 04:26 PM

#3

It won't start charging till 20+ mph.



  • woods-rider

Posted January 16, 2014 - 08:41 AM

#4

It won't start charging till 20+ mph.

 

What makes you say that? I doubt the charging system is connected to the wheel sensor or the trans.



  • ftl900

Posted January 16, 2014 - 08:49 AM

#5

When the bike is idling, it isn't producing enough electricity to run the bike and charge the battery at the same time.  

Once the engine is at a higher RPM, it turns faster and produces more electricity, thus charging the battery more effectively. 



Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • woods-rider

Posted January 16, 2014 - 09:22 AM

#6

When the bike is idling, it isn't producing enough electricity to run the bike and charge the battery at the same time.  

Once the engine is at a higher RPM, it turns faster and produces more electricity, thus charging the battery more effectively. 

 

Right, but RPM has little to do with speed.



  • funt

Posted January 17, 2014 - 06:02 AM

#7

Could I bounce it off the rev limiter in neutral for 10 minutes or so if I don't feel like going 20+ mph?



  • beezer

Posted January 17, 2014 - 06:17 AM

#8

Could I bounce it off the rev limiter in neutral for 10 minutes or so if I don't feel like going 20+ mph?

 

My wife does that in the new SUV I got her.  She says it gets the heat going sooner.



  • Krannie McKranface

Posted January 17, 2014 - 06:30 AM

#9

Could I bounce it off the rev limiter in neutral for 10 minutes or so if I don't feel like going 20+ mph?

 

Yeah, if you don't mind boiling over and floating a valve.....

 

Hence, the minimum of 20 mph, a approx speed number to reach the minimum speed required to both charge the battery and not overheat. 



  • Grover9876

Posted January 17, 2014 - 01:16 PM

#10

While troubleshooting my dead regulator/rectifier I was checking the stator to see if it was putting out voltage. At idle I was getting 35 volts ac. At ~5000 rpm it was putting out 79 volts ac. Manual says the regulator/rectifier should put out 14.0 volts dc. I am not an electrical engineer so I have no idea how many volts ac it takes to produce an output from the recg/rect of 14.0 volts dc.



  • WRLuisSa

Posted January 28, 2014 - 06:30 AM

#11

Hello gents,

 

Just to update, I had to remove the battery from the bike and use a batt charger to charge it properly. Now it is working fine again.

 

I tried to ride the bike for more than 25 minutes and still when I got back home, tried to start it with electric start but no luck.






 
x

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.