Dave
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SuzukiSavage.com Rocks!
Posts: 18099
Camp Springs, Kentucky
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I will tell you one thing I have learned about the AGM or glass matt sealed batteries.....they give you no warning when they are going to fail. I was riding my 2000 Honda ST1100 last year, I bought the bike used and the battery was working fine. About 6 months after buying the bike I rode up to the hardware store, it fired right up like usual and the ride was about 5 miles. I left the hardware store and rode about a mile down the street to fill up the fuel tank. When I went to start the bike...nothing. When I turned the key on you could just barely see the neutral light glow....barely. I took the Tupperware off and checked all the fuses and the battery connections and everything was fine. I got a jump to the battery from a car (make sure the car is never running when jumping a motorcycle from a car as it can ruin the charging circuit on the motorcycle). Then I rode for 30 minutes to try and charge the battery...and when I got home and shut the bike off...the battery was dead. I then tried to charge it without success.
It turned out that it was the original Yuasa battery from the Honda factory and was 14 years old! The dealer told me the replacement battery would never last as long as the original battery, and others have told me to be sure to get a Japanese made battery if I wanted to get the battery to last as long as possible.
So....never assume that just because the battery worked fine yesterday it should work today - the AGM batteries can go bad in a 1 mile trip between the hardware store and gas station...it did for me! There was absolutely no warning previously...the bike always started just fine.
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