idk bout chargers. But def spend the lil extra and go with a dls45 cnverter and it will keep up with ur troller all night and ur battery should be full at the end. If you wanna run day without it on then get it charged while out at night then u want the 55. But you do have to run them off your genny and i believe they take between 1000-1200 w to run at full draw