i just got a 12v 20ah battery for my sonar, my question is how do i charge it. the 7ah ones i had from cabelas came with trickle charges but that doesnt seem ideal with a 20ah battery. have two bigger chargers that im curious if i can use. one is a vector that can charge wet, gel, agm at 2a, 10a,30a. and a schumacher that does standard, gel, agm at 2a, 6a,10a. can i do it with these chargers and if so what settings for each?