I like a minimum 2 R28 or bigger for a 14ft per day- 2 Mini Kota 55#
so if I am going for 4 nights 5 days I take 10 batteries
if you have good weather you will have 3 good for way home
I will use the first battery to go low for fish finder
I have fish Maligne and Medicine for 50 years
on using solar power .. we tried not good results as mountains
don't go over 75% speed and only in spurts ..all of my travel I am fishing
Last 6 years we take 2 boats and ty them together with rope and buoys
here are a few pic's .. weight in boat each is less ..wood/batterys & gear
7n a half mile picnic site coming home .. 2 boats 12' n 14' Misty River
12 mile picnic site
give yourself time to fish and enjoy
David