100ah LifePO4 for LED Nav and Spot lights, trolling motor, and Lowrance Hook 5

[Bantou]

Do you think a 100ah LifePO4 would be enough to run basic lights and and the trolling motor? Spots run on approx. 1.5ah, not sure on the trolling motor draw (I'll have to look at the thrust rating), Nav lights will draw next to nothing, and the Hook should draw about .9amps. Motor is pull start only for now but that may change. If it does, I'll add a dedicated deep cycle for the starter.

 

[FuzzyGrub]

Its going to be gated by your trolling motor and how you typically use it and how long your outings are for. What size battery are you using now? Without the trolling motor, running the spot, navigation, and DF, it will be 40 hours before the BMS kicks off. So 30 hours would be realistic.

 

[Bantou]

It’s going to be gated by your trolling motor and how you typically use it and how long your outings are for. What size battery are you using now? Without the trolling motor, running the spot, navigation, and DF, it will be 40 hours before the BMS kicks off. So 30 hours would be realistic.

I don’t have a battery yet. Now that I have the new transom for the 16’ monark, I’m working on getting it rigged out for crappie and catfish jugs. Trolling motor will be mostly used for moving short distances between spots.

 

[FuzzyGrub]

I don’t have a battery yet. Now that I have the new transom for the 16’ monark, I’m working on getting it rigged out for crappie and catfish jugs. Trolling motor will be mostly used for moving short distances between spots.

I suspect that the 100Ah will be plenty given the intermittent use for a full day or night outing.

 

[OldSailor85]

Do you think a 100ah LifePO4 would be enough to run basic lights and and the trolling motor? Spots run on approx. 1.5ah, not sure on the trolling motor draw (I'll have to look at the thrust rating), Nav lights will draw next to nothing, and the Hook should draw about .9amps. Motor is pull start only for now but that may change. If it does, I'll add a dedicated deep cycle for the starter.

That's what I did. 100ah LiFePO4 for the trolling motor and a small cranking battery. The cranking battery is larger than for a motorcycle or tractor, but smaller than a typical automotive battery. Nav lights, sonar, and bilge pump can be moved to either battery.

15hp 2-stroke, so it cranks pretty easy. The pair lasts all day, but I don't stand up front and run the trolling motor all day, either.

Have to drag two chargers around for over-night trips.

 

[thill]

It should be fine if you are in a lake, and you aren't fighting strong winds all day. In a river or anywhere you are using the TM all day to fight currents or make headway, it might be done by the end of the day.

My TimeUSB runs my MK Terrova 55 trolling motor and Garmin 103SV all day long with no issue, even in strong currents, pushing a 16' deep-V bottom on a single 100AH battery.

 

[MattA]

Do you think a 100ah LifePO4 would be enough to run basic lights and and the trolling motor? Spots run on approx. 1.5ah, not sure on the trolling motor draw (I'll have to look at the thrust rating), Nav lights will draw next to nothing, and the Hook should draw about .9amps. Motor is pull start only for now but that may change. If it does, I'll add a dedicated deep cycle for the starter.

What size trolling motor? I run a 45lbs trust,basic lights and my helix 7 and run couple days using 100ah agm battery. But I only run my trolling moter on 1 or 2 trolling . Running max it draws about 45 amps. Max thrust is max amp it draws.