What year is the Cherokee, do you have / need the anti-death wobble kit which powers the EPS when in tow mode? If you have EPS powered in tow mode then you need a charge line as the EPS system will drain the battery within a couple of hours without one. If you get one, get one that can handle a fairly high amp draw, not a trickle charge as you might need if you were only powering brake lights.
oops sorry missed the model year, you should check to see if EPS is powered in tow mode on the 2019, I am not sure what the fix was for 2019, if it powers the EPS by default when the transfer case in neutral, etc?
2002 Safari Trek 2830 on P32 Chassis with 8.1L w/ 400 watts solar
2017 Jeep Cherokee Overland & 2007 Toyota Yaris TOADs with Even Brake,
Demco Commander tow bar and Blue Ox / Roadmaster base plates