Battery Power for Lawn equipment -- is it time?

Discussion in 'Fred's House of Pancakes' started by Stevewoods, Jan 24, 2018.

  1. farmecologist

    farmecologist Senior Member

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    I forgot to add that I also have the corded Oregon CS1500. Works great for my needs. However, if I was on a heavily wooded lot, or owned land in the woods, I would most certainly go with a hefty gas powered model, as you did.

    Anyway, my point is that electric chainsaws work perfectly fine for the average homeowner.
     
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  2. Salamander_King

    Salamander_King Senior Member

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    The heavy is in relation to the battery pack it comes with it. Most battery operated chainsaws I checked use 40-80v single pack. And total weight with battery is less than equivalent power gas engine models with fuel. But, yeah, if they can make powerful enough battery chainsaw as today's 80cc and above gas engine model chainsaw, they may have to have more than a single pack of battery, that would make it heavy. Or, maybe they can make it with external battery pack with a cord, like other battery powered yard equipment.
     
    #922 Salamander_King, Oct 15, 2024
    Last edited: Oct 15, 2024
  3. Salamander_King

    Salamander_King Senior Member

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    Agreed. Of course, I suspect most average homeowner probably can do without any chainsaw. If you have no three to cut... or only small shrubs, a hand saw will serve fine.
     
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  4. Trollbait

    Trollbait It's a D&D thing

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    Battery power supplies do exist. With a larger property, I'd look into getting one that would fit into an old backpack, and making a 3 foot extension cord. Doesn't help the power issue, as corded outdoor tools are limited by the 15a 120V outlet.
     
  5. hill

    hill High Fiber Member

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    A 12 gauge extension cord can handle a 20 amp draw. Why in the world contractors don't put more of these bad boys in is a mystery.

    Screenshot_2024-10-18-09-26-55-13_40deb401b9ffe8e1df2f1cc5ba480b12.jpg

    That will give you an extra 20% 25% greater power capability
    .
     
  6. John321

    John321 Senior Member

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    The answer is cost, 20 amp requires a larger wire gauge which will result in a little extra cost - but well worth it in a garage.

    In most cases a 15 amp circuit breaker and a 20 amp circuit breaker cost close to the same amount and so in most cases would the associated outlets
     
  7. Mendel Leisk

    Mendel Leisk Witness Leader

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    Is the outlet pictured in post #925 upside down? Just curious.
     
  8. ChapmanF

    ChapmanF Senior Member

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    Welp, now you've stirred it up ....

    "nema 5" upside down - Google Search

    Often, if you look at the factory printing on the receptacle, you'll find it oriented as if the picture above is right-side-up. But everybody's pretty much used to seeing them the other way.
     
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  9. Mendel Leisk

    Mendel Leisk Witness Leader

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  10. ETC(SS)

    ETC(SS) The OTHER One Percenter.....

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    I'm not an electrician, and I don't play one on TV, but most (probably NO) 12AWG extension cords are rated for 20 ampres.

    Blame lawyers, because the copper doesn't really care about people's 'feels.'
    The actual, real-world, lawyer-free ampacity for 12AWG wire is MORE than 25 ampres, but it's probably illegal to point that out in print without a paragraph of "you're gonna DIE HORRIBLY, SCREAMING IN AGONY" disclaimers.

    A 10-gauge wire is 26% larger than a 12-gauge wire in cross-sectional area according to the googles, and the resistance delta is something like 0.6 ohms in the first thousand feet. (solid, room temp, and DC for the budding EEs - and yes.....60 Hertz is close enough to DC)
    SO...
    Most of the additional costs for that fancy schmancy NEMA-5 stuff isn't for the copper.
    You know....the part that actually conducts the electricity!
    To be fair - the sheathing is pretty important too, which is where the additional money is probably spent, along with 8 figures of liability insurance

    If you need a 120v 20-ampre motor for a piece of lawn equipment then you might want to consider an ICE alternative.
    -just sayin
     
    #930 ETC(SS), Oct 18, 2024
    Last edited: Oct 18, 2024
  11. ChapmanF

    ChapmanF Senior Member

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    Strictly speaking, it's not the copper that has an ampacity, but the wire: the copper, the insulation around it (which has a certain temperature rating and a certain ability to conduct away heat), used in a particular setting (surrounding temperature and ability of surroundings to carry heat away). That's why ampacities given in the NEC are different for wires with different insulation types, and different for run in free air vs. in conduit with other wires, and so on. (If you have an old house with knob-and-tube wiring, blowing insulation into the walls is a no-no, because those wires were rated for free air.)

    Observing the wire ampacity will make sure the wires don't get too hot for their own insulation—assuming the cord is used in the right conditions (not still coiled up, not running under carpet, etc.).

    A separate issue is how much lower the voltage will be at the far end of the cord. That also needs attention, and that depends on the amps, the gauge, and also the length, so a gauge that's adequate for so many amps in a ten-foot cord will be too skinny in a fifty-foot cord.

    Extension Cord Size Chart - Understanding Wire Gauge and Amps - PTR
     
  12. ETC(SS)

    ETC(SS) The OTHER One Percenter.....

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    That's why I don't play an electrician on TV.
    The point about the wire/cable/cord is an excellent one.

    The NEC is rather like State Troopers - even down to the revenue generation.

    HOWEVER (comma!!!)
    Since I'm older than 2020, I understand what happens to the interstate system when state troopers stay locked in their barracks. ;)
     
  13. Stevewoods

    Stevewoods Senior Member

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    Wayback in August, the wife insisted lawn needed dethatching

    I popped open a Hamms, said "No," and went back to the giants game.

    Of course, lost the battle and dethatched in the fall.

    Point of tale is I looked for a quality dethatch rake -- $70. For a rake??

    Poked around. Found Greenworks running a deal for a corded dethatcher for $100 USD, FREE ship.

    It's a sort of puny thing, but it did a great -- fairly easy-- job. Cord was really not much of a bother.

    Seeded it back in the fall and the lawn has come back looking great.

    So, first of all, don't overlook corded equipment. Battery machines were at LEAST double the price and a lot more.

    Second, I know she's going to win the battle, why bother trying.
     
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  14. bisco

    bisco cookie crumbler

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    i've finally worn mrs b down to the point where she calls contractors rather than asking me
     
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  15. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

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    You answered your own question. You (theoretically) paid for quality.

    A rake that doesn't break, leave splinters or chemicals in your skin, and actually de-thatches the grass without overly fouling or clogging itself, has good strength and balance, doesn't hurt too bad after you accidentally step on the business end of it... there are many ways to rate quality in rakes, but like all tools the good stuff tends to be worth it.
     
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  16. jdenenberg

    jdenenberg EE Professor

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    I also use a corded dethatcher and it works well (as does my corded garden tiller). I also have a core aerator (a rollerator for about $300) which gives me quite a workout. It weighs about 50 lbs. and it takes me a few days to aerate my 6000 sq ft lawn. I do get positive comments on my lawn each spring.

    JeffD
     
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