Hey Mark519
Long time no hear

We need some updates on your trailer & those lifts.
yea it's 100x over kill - just wanna make sure I will get every last drop of hydrogen gas.
I know how you guys worry about some stuff blowing up.
That fan is just for the battery when equalizing , just the hole alone is more then enough.
I'm gonna install some more fans, maybe 6- 8 - 10 more 120 mm computer fans, one can never have to many quiet fans.
Or for the same reason too much solar.
When not needed I can just seal them off
Last time the 12" under floor fan worked great - but was a pain to have such a large hole in the floor.
And not sure if road splash water would short it out - but sitting in my driveway it worked great.
It works much better blowing cold air up from the floor vs just sucking hot air off the ceiling,
Don't know why - but it does ? the floor fan did 1200 cfm
Cheers Jerry