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New trolling motor decision

7481 Views 40 Replies 20 Participants Last post by  MariettaMike
I am considering adding a TM to my Maverick 17 HPX-V. After speaking with several very reputable installers, most suggest the 24v system which I agree is the safe way to go but to keep all batteries in console I would need to reduce the Reserve min to 80-90 [email protected] Amps for the battery sizes to work.
A 12v system would be the easiest install and I have not ruled that out as I could install one grp 29 battery and get 210 RC min’s
Here’s where I could use help.
Different conditions require different amounts of thrust so to provide a simple comparison, the 55# MK draws 50 amps at max which will burn through a RC 120 battery in one hour. If I go 24v, the MK 80# using 55 lbs of thrust uses 38.5 amps based on 56 max amp draw x 69% of max thrust. In other words, if my math is good, the 80# motor requires roughly 75% of the amps to achieve the same thrust as the 55# motor. I am using terrova numbers here.
When I read comments like “if you fish in wind and current then go 24v” doesn’t that simply translate to more thrust for longer?
It would be great if anyone with my skiff would respond and/or anyone who would set me straight on what I am missing in my analysis.
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I had a 12v with a group 31 on my Ankona copperhead. The battery was mounted in a removable cooler. At the time I wasn’t using it much so 12v made sense and I was able to get it cheap.

Even in that light skiff it would be dead after 4-5 hours on the beachfront where as the 24v on my maverick 18 will last one full day of moderate use.

As an FYI I don’t use mine all day, just go get between dead areas and to get off the beach sandbar’s in a last minute scenario.
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