Absolutely critical first step, @BayTim. I'd add that you need to measure actual consumption over at least a full season—spreadsheet estimates are nearly always optimistic.
Excellent to have you aboard, @PanelSteve. Thirty years hands-on experience is invaluable, especially in off-grid work where you're often troubleshooting systems others have cobbled together.
The...
Not quite — it's more nuanced than that. A BMS is essentially your battery's nervous system, constantly monitoring individual cell voltages, temperature, and current flow.
On the safety front,...
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