Since I already have an Amp-L-Start I plan to use it to charge a dedicated generator starting battery if I need it. We haven't spent a summer out in our Lexington yet so I'm not sure I will need the extra weight.
In case you are not familiar with the Amp-L-Start it is a 15amp charger that connects from the starter battery to the house battery bank. Whenever the house battery is being charged the A-L-S charges the start battery. Does not draw down house battery when not being charged.
2010 Lexington 255 GTS
2006 Allegro Bay 34XB FRED sold
2000 Jeep Cherokee Toad