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Anyone using a battery tender and do the pig tales mount ok on the battery terminals under the seat without a problem ?
 

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Lots of friends have them and the pigtails usually just bolt onto the battery terminals . Personally i Just have a 1 amp charger that i use . I don't mind taking the seat off to access the battery. But i guess i could add the pigtail and change the ends of the charger. Hey it was on sale at the local hardware store for $10. Through the winter I just charge it once a month for 8-10 hours and I'm good to go .
 

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I installed an automatic tender this winter. Bought it at harbor freight. It comes with the pigtail and also clamps.
It has an led that gives you the status of the charge.
Works good. Haven't had a problem and battery remains at full charge.
I did have to put a longer screw on the terminals because of the extra thickness of the of the rings.
Super convienient. Unplug, turn on the gas and hit the starter.
 

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A lot of motorcycles, like my '05 vstar 650, have no power drain when the key is turned off. There is no key fob or security system drawing power.

If your bike is simple like this, then you should be able to park the bike over the winter, and just check the battery voltage once a month like Mrdub said. If its low bump it up with a charger till it hits 13V and you are good for another month.

I was going to buy a battery tender, but they were $30, and I only paid $25 for my MC battery (got it online). I could make one with a 12V wall adapter (500mA) by putting a linear 12V regulator on the output, so it would never push the battery up over 12V, but then I have to plug it in, have a wire running across the garage all winter... Its easier to just leave the side cover off the 650 and spot check the voltage once a month.

If your bike has a bunch of stuff that is drawing power when the key is 'off', then yes, you definitely need a tender. Lead acid batteries MUST be recharged right after they are used, or the battery will quickly fail. If it slowly drains down over the winter, the battery is ruined.
 

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OEM battery on my wife's 650 decided to die last year. I replaced it and bought a tender and pigtail connector from Amazon ($25 for everything). Installed the pigtail, tucked it away under the seat, but in a way it can be pulled out. Been keeping it on the tender for last 3 months, no problems. Tender preserves the battery and makes it last longer.

Still need to redo the connector and add a fuse just in case...
 

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Anyone using a battery tender and do the pig tales mount ok on the battery terminals under the seat without a problem ?
Yes. Been set up like that for 6 years.
 
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