Nowhere could I find a graph for this battery for discharge vs cycle life, but I think 60% discharge is playing it pretty safe for a battery labeled deep-cycle. This powers everything in the tent: Cell phone booster, laptop, 12″ 3amp fan, charges multiple phones, marine radio, air compressor, lights, Bose SoundLink, and runs my CPAP at night.
https://www.amazon.com/Mighty-Max-Battery-ML35-12-Replaces/dp/B00K8E0WAG

