I carry my tool box with me and just use my extension, socket and ratchet to raise and lower during a malfunction.
I put a mark on the jack ram to avoid the problem. You can always back your truck up to the trailer to supply power to the jack if battery run down. I have a cut off on my trailer to avoid battery drain when not in use or I do not have the power cord connect to the house. Later RJD
2015 35 FT V-Lite 30WRLIKS Diamond Package
2015 Chevy 2500 6.0 4:10 gearing.
Days camped in 2015--46
Days booked for 2016--60
Days camped in 2016 so far 51