Yup, you can.
I store mine for the winter months in our barn, and I disconnect the hot (+) lead on the chassis AND coach batteries and use a battery tender on each set.
I do check the water level in each battery once a month, and that's it.
Come back in the spring and all is well.
Mike in Colorado
2004 Fleetwood Pace Arrow 37c, 8.1 gasser, (Jezebel) Ultra RV ECM / TCM and rear track bar, PPE deep Tx pan, Bilstein's, Sailun's & Sumo's all round, pushed by a 2002 Grand Caravan, on a Master Tow Dolly.