The Advent Air RV Air Conditioner - 13,500 Btu - White # ACM135 has a power draw of 40 amps at startup and 12.5 amps roughly running. The 15,000 Btu # ACM150 has a power draw of 45 amps at startup and 15 amps running.
The Start Capacitor for Advent Air RV Air Conditioners # ACMSCKIT is highly recommended for making that power draw less of an issue. view full answer...
According to the folks at TorkLift, the # TLA7700L battery box would be considered water resistant, not waterproof, as all batteries need to be able to vent. The don't offer a battery box that's 100% waterproof for that reason. My TorkLift rep tells me that they've received feedback from customers that have used self-stick weatherstripping on the lid of the box to help seal it which works well to keep water away from the wiring connections at the terminal. I've linked to a product description... view full answer...