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  1. 05-18-2025, 06:53 PM #1
    boatpotato
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    Is 80ah lithium big enough ?

    What size lithium to comfortably run my entire boat all day. There will be zero electronics hooked to it. Just wondering what guys thoughts are. Example: Running live well pumps constantly for 7-8hrs, cranking engine, using tilt trim/Jack plate, nav lights, gauges, charging electronics /GoPros, talons cycled 50+ times, auto bilge on rainy days etc…
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  2. 21XDC
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    #2 05-18-2025, 07:18 PM
    What is the benefit over a standard 100AH? Personally I would want 125-150AH.

    Marks Props 317-398-9294, 1850 East 225 South, Shelbyville, Indiana 46176 propellerman59@gmail.com http://www.marksprops.com/index.html
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  3. boatpotato
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    #3 05-18-2025, 07:26 PM
    Currently having no issues with a 100ah with 3 graphs and mega 360 plus everything listed and then some. I’m just getting ready to switch things up and would like to save some money with a smaller AH battery as the 100ah I currently have will be dedicated to electronics only.
    2019 Nitro Z20 250 Pro XS 4S
    10s N 12in Birds 360 SeaClear BBTs
    EchoUltra 1222 Lvs34 LiveFoot amped out
    10ft Talons 112 Minn Kota Ultrex
    Atlas Hydraulic Mtech Lithiums

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  4. 21XDC
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    #4 05-18-2025, 08:11 PM
    How much savings is there?

    Marks Props 317-398-9294, 1850 East 225 South, Shelbyville, Indiana 46176 propellerman59@gmail.com http://www.marksprops.com/index.html
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  5. Impulse Lithium
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    #5 05-18-2025, 08:39 PM
    Yes. You will be fine

    check ours out. Comes with a Full 10yr warranty and 15% off BBC discounts

    https://impulselithium.com/product/i...thium-battery/
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  6. Rangerdeepv
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    #6 05-18-2025, 08:41 PM
    The smallest lithium cranking battery for the larger motors is 100A. I have not seen one that is less than that.
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  7. Impulse Lithium
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    #7 05-18-2025, 10:57 PM
    Quote Originally Posted by Rangerdeepv View Post
    The smallest lithium cranking battery for the larger motors is 100A. I have not seen one that is less than that.
    our 12v-80Ah All Purpose Batterty will work perfectly on the larger motors
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  8. Mahomee
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    #8 05-19-2025, 07:39 AM
    Quote Originally Posted by boatpotato View Post
    What size lithium to comfortably run my entire boat all day. There will be zero electronics hooked to it. Just wondering what guys thoughts are. Example: Running live well pumps constantly for 7-8hrs, cranking engine, using tilt trim/Jack plate, nav lights, gauges, charging electronics /GoPros, talons cycled 50+ times, auto bilge on rainy days etc…

    If your not running electronics off it.

    I would move your live well pumps to the electronics battery and I would use the Ionic 40ah lithium start battery.

    The start battery wont need charged by more than the engine and very very limited run time.

    This is how I set mine up.

    https://lithiumhub.com/product/lithi...arter-battery/
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  9. champ210
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    #9 05-22-2025, 11:13 AM
    I understand wanting to save money but the way i look at things. Having backup power available so you don't have to go home or not ruining a tour. or out of town trip if you happen to lose one battery. If you bought another 100ah or even larger if one failed you could easily switch a few wires over and continue fishing. Not gonna happen if you go to a 40ah or possibly even the 80ah just for starting battery. My buddy sets his boat up with 2-180 ah 12volts and 2 -80ah 36 volts. Hes always got back up power if he needs it
    2019 Ranger 522D , 250 Mercury Pro XS 4stroke, 60" Ultrex Mega Di, Mega 360, 12" HB Helix, 12" Lowrance live, AT2, 16" Lowrance Carbon, 8' Blades, 5 Deka Agm 31 series
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  10. billnorman1
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    #10 05-26-2025, 08:46 AM
    If big is good bigger isn't always better, we used to say when drag racing. In battery terms, however I fail to see why one shouldn't have all the reserve that is practical.
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