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Old 09-08-2022, 02:24 PM   #7
Daryles
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Join Date: May 2019
Location: Alton
Posts: 2,654
M.O.C. #24086
Quote:
Originally Posted by Sid View Post
Thanks Scott.

I have to leave my trailer outside. My concern is if I switch off the battery, and the solar panels keep charging it, the battery could be dead soon by overcharging as it will not have a minimum source to discharged it (like the smoke detectors...).
Your MPPT controls the charging of the battery from the solar panels.
No worries about over charging as long as the MPPT is setup correctly.
HOWEVER...
Lithium batteries do not like to be charged in FREEZEING temperatures..

Here is a very good article about it

How to find happiness with lithium batteries
https://www.solacity.com/how-to-keep...tteries-happy/

If you do any boondocking at all I would add more batteries, panels and upgrade the MPPT to a 100/50 or better depending on how many panels you add.
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