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Old 03-14-2016, 12:04 PM   #1
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How to keep battery charged in park lot

I do not have solar panel installed yet. I park my AS in a paid parking lot. There is no electric outlet so I have no way to charge the battery. If I do not use my trailer for long time how can I can keep the battery charged? Any suggestion is appreciated!
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Old 03-14-2016, 12:21 PM   #2
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Absent solar panels, you're probably down to (a) disconnect the positive lead from the battery, and (b) go by periodically with a small generator (or its equivalent) and top off the TT batteries.
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Old 03-14-2016, 12:21 PM   #3
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I don't know if this would work in your situation, but I use one of these, since I also park mine in a storage lot with no electricity. In my case it's in a locked storage area in our development.

http://www.amazon.com/gp/product/B00...ilpage_o01_s00
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Old 03-14-2016, 12:34 PM   #4
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Or remove the battery and take it home to charge.
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Old 03-15-2016, 01:23 PM   #5
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We had a 7 watt solar panel with cheap charge controller that I placed in a sunny window and plugged the thing into the 12V outlet. It kept the batteries up to full charge all summer.
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Old 03-15-2016, 01:48 PM   #6
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I had the same problem. I recently installed a battery disconnect switch ($5 at any auto parts store and 10 min of work) and a solar panel and 15 Watt "BatteryMinder". So far it seems to work well. It also desulphates the battery. It cost meabout $163. http://www.amazon.com/BatteryMINDer/...=BatteryMINDer
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Old 03-15-2016, 01:51 PM   #7
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Disconnect it
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Old 03-15-2016, 02:23 PM   #8
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Quote:
Originally Posted by BambiTex View Post
Or remove the battery and take it home to charge.
This is what we do, especially over the winter months when Bambi II is in storage. We have a battery testing device and electrical charger, as it's a good idea to keep the batteries well charged at all times.
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Old 03-15-2016, 06:20 PM   #9
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Quote:
Originally Posted by WestieHouse View Post
I had the same problem. I recently installed a battery disconnect switch ($5 at any auto parts store and 10 min of work) and a solar panel and 15 Watt "BatteryMinder". So far it seems to work well. It also desulphates the battery. It cost meabout $163. http://www.amazon.com/BatteryMINDer/...=BatteryMINDer
Okay now I am puzzled...

How do you use a battery disconnect switch with a solar panel? I am assuming you have 2 deep cycle 12 volt batteries but with a disconnect switch you do not have a complete circuit to both batteries using the solar charger.. Do you charge one battery at a time?
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Old 03-15-2016, 06:41 PM   #10
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I disconnect the -battery post. My AS has been sitting for 6 months & at last check I still had 12.2 volts
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Old 03-15-2016, 07:00 PM   #11
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Here's how to connect a BatteryMINDER to a set of batteries with a disconnect switch....

Click image for larger version

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Old 03-15-2016, 07:09 PM   #12
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Oh that made me feel stupid
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Old 03-15-2016, 07:17 PM   #13
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I kept a trailer on an outdoor storage lot for a year. I bought a cheap 80 watt solar kit from Northern Tools. The panel was cabled and locked to the trailer. It kept the batteries happy and fully charged. No worries. I use it now when boondocking.
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Old 03-15-2016, 07:17 PM   #14
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What is recommend as a good battery disconnect switch that can be used with a solar battery tinder?
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