Thank you for the prompt answer. I have learned a lot over the last 2 days. Definitely need a bigger boat (battery) so that the system can handle a bigger power draw and not drain my battery.Multiple 12V in parallel adds capacity, so 100Ah per 12V battery.
Multiple 12V in series adds voltage, same capacity, so two 12V in series for 24V is still only 100Ah.
The energy stored is the same:
12V * 2 * 100Ah = 2400Wh
24V * 1 * 100Ah = 2400Wh