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Old 01-08-2015, 07:19 PM   #1
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Battery tender -what would you recommend

Hello !
Looking for some help on purchasing a battery tender. I have a 2011 Itasca Sunova 37L. I keep the unit plugged into shore power when it is parked.
It has 1 engine battery and 2 house batteries. I'm looking for the best unit to keep my batteries in top shape. All 3 batteries have been replaced. I do not want to make that a habit !!! Lol.

I live in the north east in the cold temps. I start the coach on a regular basis to keep the engine battery charged.

I have looked at solar powered units as well as plug in units.
Really looking to the group for your expertise on this.

Thank you so much !
Janet Watson & the Great Danes !
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Old 01-08-2015, 08:40 PM   #2
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I'm a big fan of the Battery Minders. I use them for my airplane, cars and motorcycles. I don't have access to power at my RV but when my RV garage is built I will use one there too.
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Old 01-08-2015, 10:10 PM   #3
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Battery minder...but...

Be carefull.

We have battery banks that are pairs if 8D and they are the high cca type.sll starting batteries...did not use deep cycle for house but not point...

We picked up 2 of the 8 amp models as the manufacturer indicated they could support multiple batteries.

We also thought they would provide some power for parasitic loads which they will until they perform the maintenance mode.

Issue is they time out on the maintenance process and fault out.

The batteries are way to big at say 500 amp hours or so.

This requires reseting them multiple times over a week or 2 to get them happy.

The small unit we put on the gp31 generator battery is just plain happy.
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Old 01-09-2015, 08:05 AM   #4
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Battery Minder
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Old 01-09-2015, 09:13 AM   #5
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Good point - some models require the batteries be charged fully prior to them working. I believe the newer models will charge a battery that has a small charge to it. Do some research to get the best one (1510 model I think?).
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Old 01-09-2015, 12:24 PM   #6
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I'm curious, (sounds better than I'm a newbie) if the coach stays plugged in when not in use, why would a battery tender be necessary. I kept one on the Harley, especially when it wasn't ridden as much...
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Old 01-09-2015, 05:36 PM   #7
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Search for battery chargers and converters and overcharging.
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Old 01-10-2015, 11:40 AM   #8
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Quote:
Originally Posted by AUPOP View Post
I'm curious, (sounds better than I'm a newbie) if the coach stays plugged in when not in use, why would a battery tender be necessary. I kept one on the Harley, especially when it wasn't ridden as much...
The engine batteries on my RV do not charge when plugged in to shore power so having a minder (I don't have one yet) would I think keep the engine batteries topped off.
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Old 01-10-2015, 11:58 AM   #9
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I keep my mh plugged in all the time too. I installed the Ultra Trik L Start so that it keeps all the batteries charged. Ultra TRIK-L-START Starting Battery Charger/Maintainer
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Old 01-11-2015, 06:10 PM   #10
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I use this one
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