charging system nfg ; battery takes charge but dies after riding

Randy Grein rgrein at
Sun Feb 12 13:13:33 PST 2012

No, you are correct to suspect the charging system. Start by checking charging voltage; should be between 13.6 and 14.25v. it is it's time to clean the battery posts (rare). If not use the checklist in the manual; stator resistance, etc. Not uncommon for excessive charging from a dying battery to take out the charging system.

On Feb 12, 2012, at 10:52 AM, Jo Rhett wrote:

> So I replaced the battery in my street bike about 5 months ago.  It's died on me three times in the last 2 weeks.  After doing some careful testing it's clear what's happening -- I can put it on a battery tender and get 4-5 (errand/trip) rides from it, but the battery is dead after that.  But it does accept a charge and does run quite well.
> I think that the charging system is screwed, rather than the battery being already dead. Am I wrong? What should I replace?
> -- 
> Jo Rhett /  velociRaptor Racing
> #553 WERA

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