Deeppatel726,
I purchased a complete system from AltE in December of 2021, (installed/commissioned September of 2022) for my off grid cabin in northern Wisconsin, which included (4) kilovault plc 2100 12v batteries. I can DM you the sales order so you know my exact system if you wish, for the sake of conversation. Currently, everything is working as expected except for one issue. One of the batteries seems to be failing and maintains a much lower voltage rating than the other 3. I have received a few recommendations through this site as well as other sources but as for now, with good sun exposure through these summer months I am getting by. I am anticipating having to replace the entire bank at some point, likely early fall this year. Basically, looking for recommendations and/or options in the way of either the possibility of replacing the one failing battery (yes I realize not recommended) or what battery bank configuration would be a good fit for my current system.