The Jackery is a nice little unit that is very very over-hyped by it's advertisers.
You have Two Marine/deep cycle (note the change of case there)
A pair of GC-2 REAL deep cycle might be better (NOTE: Not enough better to warrant replacement untill the existing batteries need replacement) IF that is, they fit..
LiFePO4 is better still.. though more expensive and there are a couple of other considerations if you "Cold Camp" (They do not like to be recharged below freezing.)
Frankly.. If i get another Trailer.. I'll got with LiFePO4 batteries
(Check Battle Born web site.. NOTE. there are cheaper.. There are as good (Bioenno Power) but there are none better that I've found. (I have a small Bioenno Power) You do need a proper charge controller for LIFePo4 however (I have one of those too)
