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Old 03-06-2018, 01:38 PM   #1
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Battery tender?

I just got new coach batteries and am looking for a maintenance device. I had a battery tender jr on the old batteries but am not sure it was powerful enough for a two battery system. Any suggestion on this? maybe a battery tender plus or battery minder? Thanks
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Old 03-08-2018, 08:22 AM   #2
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I run a battery tender junior on my diesel truck with two batteries and it does fine. It just takes a little longer to change from red to green (several hours) as compared to my gas truck with one battery also on a battery tender junior.
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Old 03-08-2018, 08:33 AM   #3
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I have a harness with the plug on each battery and switch them every couple of weeks.
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Old 03-08-2018, 12:58 PM   #4
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I think it's time for a new tender, had it on the batteries for a week and nothing happening. But the battery tender I have is about three years old so maybe that's the problem. Think I will go up to a battery tender plus this time.
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Old 03-08-2018, 08:00 PM   #5
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I use one of these...actually, my second one as I ran over my first...

https://smartercharger.com/battery-c...ti%20US%207002

It actually puts out enough amperage to charge a slightly larger battery bank. The battery tenders didn't do the trick for me. Never would completely float them.
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Old 03-08-2018, 08:10 PM   #6
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Well-reviewed and reasonably priced:

https://www.amazon.com/NOCO-G3500-Ul...attery+charger
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Old 03-08-2018, 08:29 PM   #7
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As my battery tenders died, I switched to the ones below. A little more money, but more functionality and current.

https://www.amazon.com/CTEK-56-158-A...ttery+chargers
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