Quote:
Originally Posted by roland stockham
Quite often you may want to start the engine after a night or more at anchor when the house bank may be under 12v
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Absolutely not. If your house bank is ever getting that low then it is below 25% SOC and woefully inadequate. Your best bet then is not a starting
battery, it's to properly size your house bank. For example, by removing your starting bank and replacing it with more house capacity.
I get your point about having redundancy, but you can do that by having two house banks combined into one unless there is a problem with one of the banks. A low-voltage
alarm is much, much cheaper and easier than a dedicated starting bank and all the associated extras.