Dual Batteries, Marine Switch and solar tender
We do a lot of dry camping where we depend on battery power. Some camp sites do not allow generators to run during nighttime hours even if they are ultra quiet units. So I fitted my Passport with dual battery boxes housing group 31 deep cycle batts. I used a Marine battery switch for easy selection or disconnecting. You can switch from all off, batt 1, batt 2 or both batteries...
I like the easy disconnecting switch for storage.
I also attached a 3 watt solar tender to the lid of one battery box. It has worked well for keeping the battery topped off during storage.
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