85# in mine. Bought a small harbor freight compressor to fill when needed. The air bag has very little volume so does not take much. Have a 12v outlet in the landing gear bay as well as the back end of the pickup bed to power the compressor.
Housted
2019 Forrest River Forrester 3051S 2014 Honda CRV toad.
1000 W Solar, converted to 50 amp
400 Amps of LiFePO4,3000 Watt Inverter, Refer converted with JC refrigeration unit, Sofa replaced with 2 swivel chairs, over cab bed converted to TV mount and storage