I have a 94 max with a 16hp Vanguard engine. I was wanting to add 4 of the off road lights and 2 power outlets. I was going to upgrade to the small optima battery or a similar high end battery. Will running this much be too much for the alternator on this small engine? Additionally, if I decide to also run a trolling motor, occasionally, will I need a separate battery for this, I would like to avoid the additional weight of another battery if possible? thanks.