Due to loosing the batteries in the 20' I finally decided to get the NOCO 5 installed permanently in the RAM. Now I would like to replace some of my old tenders with NOCO units as they seem to be decent quality (I have had Deltran Battery Tenders that are starting to get flaky after almost 2 decades of use). I was looking at the wall mount unit that would work in a parking bay I have, anyone have experience with the 2A units? I can get a 2A 4 channel for the same as a 5A 3 channel, or 2, units to put in the ends of each bay?? Anyway they would be used on vehicles that sit more than drive. My Boat, Chevelle, Camaro, and Bronco are not driven frequently so would like to get them all on units vs moving them around weekly like I do now. Bonus is I could top off my CanAM or Pioneer also. Still need to get a solution for the dump trailer and tractor also... Geesh too darn many batteries...... Probably will buy another Genius 5 or maybe 10 as a portable unit now that the 5 I have will be off the shelf.