Hi, can I connect two 12v batteries in series to get 24v and also each battery has individual connectors connected to 12v alternator from engine for charging? Would this cause problem? Or what type of converter (if there is one) that can do 12v to 24v with max. 50amp. Another option I just thought of is maybe a 24v battery but with a 12 to 24v 20amp converter to connect the 12v alternator to charge 24v battery. Which option would work better? Thank you.