Looking to put together a couple solar systems; one mobile, and one stationary. The biggest expense is batteries. I looked at Lithium, but the recommendations were to not use them in high temps. I'm regularly in temps over 100 degrees, ...
If you will be easily able to get replacement batteries, then a Sam's Club, Costco, or BJ's membership might be worth it just for access to the batteries, especially with 2 solar systems.
If replacing the batteries will be difficult due to location, stationary and/or mobile, then you might want to invest in the Trojan batteries mentioned above.
What voltage systems?
Will the mobile system be a copy of the stationary system for simplicity, or will the systems have different needs?
Is the stationary system at the top of a mountain only accessed by a steep hike followed by a technical climb? If so, you might want to look at Lithium batteries.
Will you need to be very careful of weight with the mobile system? Will you be mounting the batteries inside a temperature controlled living compartment, on a heavy duty trailer, on a horse-dragged travois, ...?
a simple vehicle used by Plains Indians consisting of two trailing poles serving as shafts and bearing a platform or net for the load… See the full definition
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