I remove these cables on a regular basis when I install solar charging systems with new AGM or lithium batteries.
Airstream generally uses 6 AWG cables from the batteries to the bus bars and then back to the DC fuse panel and converter.
If you have the factory WFCO inverter, there will be a second set of cables from the batteries to the inverter that are generally 4AWG.
RVIA/RVDA Nationally Certified Master Tech
Master Tech Energy Systems, Inc.
AM Solar Certified Installation Center
Lifeline Batteries**Magnum Inverters
Lew Farber...RVIA Certified Master Tech...ABYC Certified Master Marine Electrician
SOLAR TECH ENERGY SYSTEMS, INC.
AM SOLAR ...MAGNUM…VICTRON ENERGY...LITHIUM & LIFELINE BATTERIES…MARINE REFRIGERATION