FoxenTec
Senior Member
Inside I have two 105ah Lifeline AGM batteries wired in parallel and fed by 200 watts of solar through a MPPT Controller. This runs our Engel fridge, lights, fan and phone charging.
Today was in the low 100's and inside the truck cab it reached 118 while inside the aluminum shell was 109. I know we will see significantly hotter weather then today and I am wondering if I need to move some air in the shell for the batteries. I have a 3" vent to the outside for the batteries and I often leave the shell front slider open with a screen on it. Would it benefit having a fan run in the shell on these really hot days or am I worrying about nothing?
I have seen thermal runaway in huge -48V DC battery plants inside telecommunications offices and want to avoid any issues with my little truck shell batteries.
Thank you!