Hi, I have just bought the ac200max, b300 combination. The problem is that Solar and the b300 keep charging the max to 100%. Leaving the b300 partially charged. I’m losing out on 1.5 kw per hour of Solar. Also, it cannot be good to have the ac200max at 100% all the time.
I have the same combination and the same happens. The Ac200max gets to 100% while the b300 can be anything from 80% to 95% when the Solar charging stops. It would be helpful to have a setting so this can be adjusted as required.
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Use a smart phone to update the AC200Max’s firmware. This should fix the issue.