Has anyone tried recharging their bass boat batteries by plugging the onboard charger Into a rechargeable lithium ion power pack? I was thinking about going to something like the Westinghouse igen 300 which has rechargeable lithium ion battery- no gas engine. My battery setup is Trojan SC220 (2) and Trojan SC200 (1). I have a Minn Kota 3 bank on board charger which draws 10-15 amps for 4-5 amps per bank. I leave it plugged in overnight 10-12 hours.