Have an 09 and this spring after several rides the battery went dead. had to replace it for $185.00. Dealer said that even though the battery tender was hooked up all winter, the CVO security system will drain the battery. He said to disconnect the battery in the winter, take it out, and then hook it to a BT. Anyone else heard of this?
I assume when you say the dealer, you mean the doofus behind the parts counter. Please be aware that many dealership parts guys are just as clueless as the sales people and the service writer's. Brains are not required to work there, much less a technical degree.
If you buy the service manuals for your bike you will find a chart that lists all the various current draws for the "always on" items like the radio memory, security system, etc. Add them all up (they are in milliamps), and you will find that the draw is much less than the output of a Battery Tender. What he told you is pure BS, meant to try to make you think the early failure of your battery was somehow your fault and not the fault of the part. Assuming your bike was purchased early in the 2009 model year, it can't be quite 3 years old yet. That is definitely on the low side of normal for an AGM battery, but it's not unheard of for them to fail at 3 years. Hopefully the replacement will go a lot longer and everything will average out.
When you park it for the winter, make sure the connections are all clean and tight and just hook up the BT. I've been doing it that way for more years than I care to remember, with an unheated garage, and my AGM batteries have lasted 6 years on average. Btw, if the bike was pulling more power than the BT could supply, the light would never turn green.
Jerry
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Topic: BATTERY - to disconnect or not? (Read 5165 times)