Hoping to help folks out who dont drive their jeep a ton. Now I must admit my jeep is a garage queen, it used to come out 1x a week to keep the battery charged. I had issues with keeping my battery charged on the jeep ever since I put in the genesis dual battery system. Anyway, if I went away for a work trip etc it would struggle to start and several friends told me their trickle charges didnt work wit this setup. I did so research and found this guest dual battery charger for deep cycle marine batteries... works great, charges and conditions both batteries.... just saying if you dont drive the jeep much this will save you some $ on the gel cells. It's not cheap, but it's cheaper than the alternative.