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Thank you sir! I learn from y'all and Will, so yeah - share the knowledge.

Necessary / helpful to keep battery compartment cool if ambient is 100 F but low C-rates on charge/discharge on the LiFePO4 batteries? This would be for an off-grid solar install in South Georgia, USA, where it is hot and humid. It seems I could double or triple the life by not letting the...

I agree - convection and conduction rate of heat transfer with heat sinks is zero if no difference in temperatures. So can't cool below ambient.

12V minifridges - yes, some of them use peltier. The fancy / good 12V/24V fridges that Will P. recommends on his other website are NOT peltier coolers to my understanding. They I think actually have vapor-compression kind of technology - just as a traditional fridge would - and I think the...

I think if dry heat (out west), look into "evaporative cooling" / swamp coolers. I think if humid, like where I and Florida guy live, evaporative cooling is a no-go. Then I think vapor compression/expansion like mini-fridge and traditional A/C technology is a more energy-efficient solution...

"dry stored boat" - so you want to keep the batteries cool while in storage and when the boat is in the water? I agree with another that heat sinks / fans will not actively cool (cool below ambient temps) in this environment. Using the sea as a heat sink I like, but if you want to cool while...