MEXICOWANDERER wrote:
"Best" route when a microwave oven is not involved
exactly. What is great for one application may be a disaster for another. GC advantage is ability for 100's of deep discharges to 25%SOC, excellent life when current draw is limited to say 50A or even 25A or less. Big disadvantage is very high cell resistance = voltage drop on high draw >50-75A and coupled with no ability to load share between batteries when comparing 2 GC to 2 marine 12V jugs.
My past experience is that a pair of GC would run my true inverter panasonic microwave at 500W output as long as battery was at 85% SOC or more. Otherwise the inverter would cut out due to low battery voltage. Others had similar experience. With 4GC I can go down to about 50% SOC.