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I have been looking at a LifePO4 too. This will be for my permanent setup and would be charged via a 200w solar panel via an ePever MPPT 30A charge controller which can be setup for lithium charge parameters.
What I like is that lithium voltage stays more level than my Gel cell battery (better for running electronics) also with my gel cell you can only really use about 50% or less of the capacity while lithium I think you can use up to about 80% of the capacity.
Still a bit hit up front $$$ wise though. I been looking at buyinh local here in NZ from AASolar.
Dave
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