It's been asked here, but looking for clarity. How bad is it to undervoltage a 12-volt lead-acid battery?
SLI automotive starter batteries list RC (reserve capacity), but I think this a usable amperage that does not take battery life into account.
Since Starter batteries are not intended for deep cycle, what's a safe low voltage disconnect that preserves my batteries full life?
12v, 11v or 10v?
My battery is rated 70AH, 900CCA, 120RC.