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Post Info TOPIC: AGM batteries
Trevor law


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AGM batteries
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Just a quick question,we have put our van in storage,it as 480watts of solar on the roof and 2 X 120 amphr batteries.Do I just leave the batteries ticking over or should I leave say the radio on all the time .Thanks in advance 

Safe travels everyone 

Trevor 



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Peter_n_Margaret


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If the van will get some sun, just let the solar keep the batteries full.
No point in leaving anything turned on.
Cheers,
Peter

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OKA196, 4x4 'C' Class, DIY, self contained motorhome. 960W of solar, 400Ah of AGMs, 310L water, 280L fuel. https://www.oka4wd.com/forum/members-vehicles-public/569-oka196-xt-motorhome
 

 
Trevor law


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Thanks Peter for a quick reply,the van is in full sun ,when I checked the bmv was reading fully charged 100% .So I will check in a couple days and just keep an eye on it .Thanks again 

Keep safe everyone 

Trevor



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Tony LEE


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In fact you should make every effort to disconnect ALL possible loads and just leave the solar connected. Reason is if the solar fails, your batteries have a good chance of surviving. Leave a radio on and they will be flat in a week. In Cusco, I left the truck for 8 months with bidirectional split charging to keep all batteries full from the solar. A glass fuse inside the solar controller had failed because of a cold solder joint and when we returned, all 6 batteries were way lower than safe.

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Tony LEE


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Collyn Rivers used to recommend fully charging AGMs and then completely disconnecting them and said they would be fine for at least 6 months. If leaving them on charge, another recommendation was to reduce the float voltage by 0.4V

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Peter_n_Margaret


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I would support what Tony says.
Cheers,
Peter

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OKA196, 4x4 'C' Class, DIY, self contained motorhome. 960W of solar, 400Ah of AGMs, 310L water, 280L fuel. https://www.oka4wd.com/forum/members-vehicles-public/569-oka196-xt-motorhome
 

 
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