[quote=Osky]Hopefully a fish finder. I want one that can be portable and also has GPS. The big factor is power draw. I use them so much on flyins that recharging batteries in remote locations becomes an issue.
Show me fish down below, mapping on the side, hold all the other bells and whistles please.
Please post your data on how to save battery life I am very interested I assume the first and largest factor would be screen size
I am very curious
So here we go..
I use 7.5ah batteries made by Dakota for remote fly in guiding. Chosen for weight concerns.
A Garmin striker 4 or similar will run 14hrs per charge. The striker 5 drops that number to 11 hours or 10 if you are using all the mapping functions. The same size units in Humminbird models were nearly the same except the Helix 5 with mapping and all will run around 7-8 hours to that battery charged.
I broke it down to the “4” models use about .4 amps per hour, the 5” screens .5 amps per hour and the 7” screens Nearly 1 amp per hour. Color screens, Bells and whistles add to the draw.
I did not search larger screens as I don’t use them.
By comparison I have an older Lawrence black and white 5”, no other bells and whistles on it to speak of and it runs 4 solid days of at least 8 hours per before the battery is down.