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  1. #1
    Member Meleagris1's Avatar
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    Generator size for 4 bank charger

    I would prefer to pick up a Honda EU1000 generator due to its handy size but wondering if I really need the EU2000 for a MK 460PC. Its only function would be charging batts when away from power. Obviously bigger is better, but specifically wondering about guys who have used the 1000 and their experiences with it. Thanks!
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  2. Joe4d
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    #2
    well ur getting close, figure 4X15amps, times 13 volts is 780 Watts, so the 1k should run it no problem. However, if u go for the 2 K you could also make coffee or run a small george foreman grill.

  3. Member DrewFlu33's Avatar
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    #3
    Charging voltage is also likely closer to 14.5 and 60*14.5 is 870, putting you closer to the limits of that 1,000 watt machine. They are rated for 1000 watts max with a "rated" wattage of 900 as well, so even closer than it might otherwise seem. I'd go with the 2000. Having been around a bunch of them while ice fishing, the 2000 is still very easy to tote around. Bet the 2000 would do better on fuel as well.

    Actually just looked up the specs for that charger...it sounds like equalization in lead acid mode is 15.5 volts (see top of page 6 here) which would put max wattage at 930. Closer still to maxing out the 1,000....
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  4. Member Meleagris1's Avatar
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    #4
    Thanks for checking those numbers - makes sense. I know guys get by with the Honda 1000 but for just a little more weight I will probably opt for the 2000.
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  5. Member DrewFlu33's Avatar
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    #5
    I think the really nice thing is that the 2000 should be able to handle it in Eco mode while the 1000 would be running full bore, at least until the batteries are up to 90% or so. Fuel consumption would maybe be one advantage as I mentioned, but the noise level would be another. The 2000 should just purr.
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  6. Member LTZ25's Avatar
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    #6
    The 1000 will easily run it , I've run a 4 bank 15 amp MK PC with mine .

  7. Member Nightmare's Avatar
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    #7
    Numbers you're running are in the 12v realm. The charger consumes and the generator makes 110v. Charger consumes much fewer amps in 110v than what it produces in 12v. Figure the conversion. The 1000 will do fine.

    You're mixing apples and strawberries.

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    #8
    I run a 2000 watt Powerhorse portable invertor generator from Northern Tool. It works well and you can save a lot of money compared to a Honda.
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    #9
    I would go to Harbour Freight and by the Honda copy.....3500 ...https://www.harborfreight.com/engine...84.html....You can get it on sale for a little over 550. I have had one for over a year and it works great.

  10. Member LTZ25's Avatar
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    #10
    Quote Originally Posted by transdep1 View Post
    I would go to Harbour Freight and by the Honda copy.....3500 ...https://www.harborfreight.com/engine...84.html....You can get it on sale for a little over 550. I have had one for over a year and it works great.
    Good idea .

  11. Moderator Fishysam's Avatar
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    #11
    i have and use a 2000eu, i run a fan and light off it while charging, also the 2000 fits great between the wheel and seat so i can drive and charge
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  12. Electrical/Wiring/Trolling Motors Moderator CatFan's Avatar
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    #12
    Quote Originally Posted by Nightmare View Post
    Numbers you're running are in the 12v realm. The charger consumes and the generator makes 110v. Charger consumes much fewer amps in 110v than what it produces in 12v. Figure the conversion. The 1000 will do fine.

    You're mixing apples and strawberries.
    Fewer amps but more volts, so the power is the same. 1000W is 1000W regardless of voltage.

    A 460 charger provides 4X15X14.7=882W at maximum charge rate. Because the conversion process from AC to DC is not perfect, you have about a 15% loss in the conversion. That means you need 15% more power from the generator than the charger puts out, so you'd need 1014W from the generator to charge at maximum current on all 4 banks.

    If you don't have that much, it will likely still work, but not at full capacity.

    I'd go with a Honda EU2000 or the Yamaha equivalent. Much more versatile for other things and not a ton more expensive.
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  13. Member Nightmare's Avatar
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    #13
    Quote Originally Posted by CatFan View Post
    Fewer amps but more volts, so the power is the same. 1000W is 1000W regardless of voltage..... Because the conversion process from AC to DC is not perfect, you have about a 15% loss in the conversion.......
    I understand the wattage - no problem there. I didn't ponder the loss in ac/dc translation. Thanks for pointing that out.

  14. Member DrewFlu33's Avatar
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    #14
    Quote Originally Posted by Nightmare View Post
    Numbers you're running are in the 12v realm. The charger consumes and the generator makes 110v. Charger consumes much fewer amps in 110v than what it produces in 12v. Figure the conversion. The 1000 will do fine.

    You're mixing apples and strawberries.
    No. We'd be mixing apples and strawberries if we left it at amps which is what you seem to be implying was done. The math for the conversion has even been laid out (notwithstanding the loss that CatFan pointed out). Watts are watts.
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    #15
    The manual for the MK460PC states input power at 120vac is 900 watts.
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  16. Member Meleagris1's Avatar
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    #16
    Bought the Honda 2200 - the Honda tech said the 1000 was not enough for the MK460. Appreciate the help!
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