Battery Charging Mystry
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Tourer
Joined: Apr 2008
Posts: 455
Likes: 1
From: Deep River ON
Battery Charging Mystry
I managed to leave my ignition switch on and completely drained the 3 year old battery on my 2003 FLHTCi. When I tried to charge it up using the Battery Tender, I got the flashing red light saying it was not connected correctly. So I put on a traditional charger for a couple of hours after which the Battery Tender appeared to be OK. However, after about 16 hours of charging with the Battery Tender the flashing green light indicating 80% charge does not come on. I have successfully started the mike several times and done a short run. However, I am a bit nervous about doing a long run because I am not sure what is happening with the battery. Is my battery shot? Any thought would be appreciated.
Outstanding HDF Member
Joined: Dec 2009
Posts: 2,502
Likes: 6
From: Lapeer , Mich
the battery tenders are just that , a tender and not ment to charge a dead bat , allso they will cycle , some times I worry bout mine, it will show a low bat but go back latter and will show just fine , should be just fine , what is your volt meter showing on your bike
Should be ok, I'd think if it seems to be starting/running ok. you can always have a car parts place test it for you for free. But what I really want solved, is where the "e" in mystery went from the title. lol. Just kidding. I had to.
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Cruiser
Joined: Nov 2006
Posts: 226
Likes: 0
From: Plantation, FL
My experience with lead-acid batteries is that once they are completely dead they are never the same. That battery is probably going to let you down in the near future. My advice along with everyone else who answered this thread is to replace the battery before it before it lets you down.
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HDF Community Team
Joined: Mar 2008
Posts: 1,893
Likes: 552
From: NH
How long was the battery left in a discharged state? You might try leaving the battery tender on it charging for 3 days or more...It may still charge up over time...
On the other hand, if left in a discharged state too long, internal plates may have developed sulphate coating on them which will prevent battery from taking a full charge.
You can't go wrong with a new battery, maybe its time...
On the other hand, if left in a discharged state too long, internal plates may have developed sulphate coating on them which will prevent battery from taking a full charge.
You can't go wrong with a new battery, maybe its time...
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