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Old 10-15-2013, 10:53 AM   #1
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Battery tender?

Is it a good idea to put battery tender on camper battery for the winter? If so a 12v one right
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Old 10-15-2013, 10:59 AM   #2
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I keep a tender on my trailer all time not in use. Also keep one on my farm tractor lawn mower and motorcycle. I have greatly extended battery life on all of these.
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Old 10-15-2013, 11:04 AM   #3
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Quote:
Originally Posted by Ray01 View Post
I keep a tender on my trailer all time not in use. Also keep one on my farm tractor lawn mower and motorcycle. I have greatly extended battery life on all of these.
After considerable research, I have concluded that they are unnecessary as long as you monitor the battery voltage and put a charge on them once a month or so. There are lots of people that swear by them and lots of beneficial claims, but I have not seen ANY hard data by independent tester's that can back up these claims. So do what you want.

They probably do not hurt, maybe.
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Old 10-15-2013, 11:14 AM   #4
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Well I am on the other side of the fence. I had a battery tender on my motorcycles and have lost 3 batteries in 3 years. They were good quality tenders so am not sure what happened.
I am going to pull on my fathers advice and history....before battery tenders he would pull the battery out of our boat or RV, charge them up, then put them in the garage or his work shop (placed on a piece of wood on the concrete floor...not directly on the floor). They were left all winter long then before using again in the spring he charged up again to make sure they were full and then placed back into the boat or RV...my father had batteries and has batteries that are 10 plus years old and work just fine.
Something to be said for a tried and true...!
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Old 10-15-2013, 11:19 AM   #5
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I've had them in my bikes and four wheelers and worked fine had batteries for appx 3-4 years each time so I don't know...
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Old 10-15-2013, 06:44 PM   #6
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I use a battery tender on my motorcycle and the last battery lasted nearly 10 years.

Having said that with the motorcycle, I do it differently with my 6-volt batteries on the camper. I'm a fully charge-disconnect-and-check with my multimeter every 6 weeks kind of guy. Note that I store outside and live in WI so the biggest concern is to make sure the batteries won't freeze. I recharge at about 70% SOC.
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Old 10-15-2013, 06:51 PM   #7
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So will I need a 6v battery tender or 12v. It has one stock battery on it ?
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Old 10-15-2013, 06:54 PM   #8
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Triguy - What voltage would you consider low enough to then attach a charger/Tender? Thx.
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Old 10-15-2013, 06:55 PM   #9
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12v Battery Charger, Battery Desulfator, Battery Maintainer, Charger
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Old 10-15-2013, 07:18 PM   #10
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Battery Tender (the brand) goes on our Harley over winter; commercial lawn mower, Super Duty tow vehicle, deep cycle marine battery on boat, travel trailer battery, and farm tractor. Those six batteries are idle for months, and five Tenders keep them in top condition.

The first Harley battery was replaced in 6th year; mower battery in the 8th year, and now on 5th year with boat battery. It's frequently sub-zero during winter where I live, and I feel this product has extended the life of each battery. In fact, the Tenders are attached whenever the machines are not in use. I use the ends that attach directly to the terminal posts, and have the male/female plug on the end. Hook-up and disconnect is quick and simple.

Maybe I've just been lucky, but I feel the Tenders paid for themselves several times over. And, I lack the ambition to haul all the batteries inside during winter!
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