1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Battery Power for Lawn equipment -- is it time?

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

  1. Rmay635703

    Rmay635703 Senior Member

    Joined:
    Oct 16, 2016
    2,593
    1,610
    0
    Location:
    Somewhere in Wisconsin
    Vehicle:
    2013 Chevy Volt
    Model:
    N/A
    I noted an 11” 18v lawnmower, I couldn’t understand who would pay the asking price for something designed for a 5 year old

    Might as well use a weedehacker to cut the yard
     
  2. Salamander_King

    Salamander_King Senior Member

    Joined:
    Nov 8, 2015
    10,970
    8,853
    0
    Location:
    New England
    Vehicle:
    Other Hybrid
    Model:
    N/A
    I can't remember if it was Ryobi or some other brand, but I think there are tools that run on a 40v system but requires two 20v batteries. I like the idea that I can use an 18v system battery on both 18v (20v max) and 36v (40v max), so to maximize the investment in battery packs. As much as I like battery-powered tools, there is nothing more frustrating than using tools that are underpowered and have short run times.

    I have been looking for an economical battery lawn mower, but for my use, I don't think they are "tough" enough and I can't justify paying the hefty price for them. My Husqerverna manual push lawn mower with Honda GCV engine is now 10 years old. I paid $199 for it when new (was $299 MSRP). It has not failed to start on the first pull for the last 10 years. I really abuse it using it in the thick meadow and woodland rather than on manicured lawns. I don't do much maintenance on it. Just put some ethanol-free gas most of the season. I have changed the oil twice in the last 10 years and the spark plug once. I don't know if any of the currently available mostly plastic battery mowers are up for the task.
     
  3. bwilson4web

    bwilson4web BMW i3 and Model 3

    Joined:
    Nov 25, 2005
    27,373
    15,513
    0
    Location:
    Huntsville AL
    Vehicle:
    2018 Tesla Model 3
    Model:
    Prime Plus
    Speculation but there may be a failed thermistor in the battery. Many LiON battery assemblies have a pin connected to a thermistor to detect over heating. If failed, the tool won't pull power.

    How many pins do you have on the battery assembly? The outer two should be "+" and "-". The pin next to the "-" should be the thermistor, a temperature sensitive resistor. Nominal values should be 100-1000 ohms.

    Bob Wilson
     
  4. Stevewoods

    Stevewoods Senior Member

    Joined:
    Jun 10, 2014
    647
    986
    0
    Location:
    Seattle, WA
    Vehicle:
    2008 Prius
    Model:
    II
    Ah, "rethunk" my question and answered myself...

    Sorry....
     
  5. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

    Joined:
    May 12, 2018
    7,140
    6,688
    1
    Location:
    Pennsylvania
    Vehicle:
    2018 Prius c
    Model:
    Two
  6. Stevewoods

    Stevewoods Senior Member

    Joined:
    Jun 10, 2014
    647
    986
    0
    Location:
    Seattle, WA
    Vehicle:
    2008 Prius
    Model:
    II
    Yeah, sorry, I mostly had a question about use of electric trimmers to trim blackberry vines along a road. The regs allow electric chainsaws, which considering the chain running along the bar creates a fair number of sparks !?!, so I figure I am O.K. using an electric string trimmer. I will be sitting out with water, shovel, extinguisher, cell phone and dogs watching for an hour after I am done, so think I am good.
     
  7. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

    Joined:
    May 12, 2018
    7,140
    6,688
    1
    Location:
    Pennsylvania
    Vehicle:
    2018 Prius c
    Model:
    Two
    the critical elements seem to be the no metal blades on rock, having a shovel and gallon of water and the firewatch after the activity. Sounds like you've got it covered.
     
  8. Stevewoods

    Stevewoods Senior Member

    Joined:
    Jun 10, 2014
    647
    986
    0
    Location:
    Seattle, WA
    Vehicle:
    2008 Prius
    Model:
    II
    0825231628(1).jpg Came up the drive yesterday afternoon and was greeted with this about 400 yards from the house. Could not move it by hand.

    We are in fire season on the West Coast and gas chainsaw use is highly restricted. But, I bought a battery chainsaw earlier this year and I can use it with no problem and no fire watch after use -- which is a big deal. I would have set a fire watch, but the fire captain I talked to said there was no need and for those guys to say that, well it says something.

    And, damn if the battery saw did not take care of it in about 10 minutes.
     
    #808 Stevewoods, Aug 26, 2023
    Last edited: Aug 26, 2023
  9. theory816

    theory816 Junior Member

    Joined:
    May 5, 2016
    96
    23
    0
    Location:
    California
    Vehicle:
    Other Hybrid
    Model:
    Base
    I use battery power for the weed wacker and the lead blower but still use gas for the mower. This is the best combo imo.
     
  10. Stevewoods

    Stevewoods Senior Member

    Joined:
    Jun 10, 2014
    647
    986
    0
    Location:
    Seattle, WA
    Vehicle:
    2008 Prius
    Model:
    II
    Using in rain.
    I may have found a disadvantage to battery tools.

    What is the wisdom of using in rain?

    Manual says do not. Was using 60 volt battery mower in what was either super heavy fog or light drizzle. Had no issues but this a common thing in the Pacific Northwest in the fall.

    Of course, next time I go to use it it may brick, I guess.
     
  11. jdenenberg

    jdenenberg EE Professor

    Joined:
    Nov 21, 2005
    3,852
    1,844
    1
    Location:
    Trumbull, CT
    Vehicle:
    2020 Prius
    Model:
    LE AWD-e
    Its safer to use a battery powered tool in the rain than one that runs on AC power. Either one can be damaged by getting wet.

    JeffD
     
  12. hill

    hill High Fiber Member

    Joined:
    Jun 23, 2005
    19,857
    8,159
    54
    Location:
    Montana & Nashville, TN
    Vehicle:
    2018 Chevy Volt
    Model:
    Premium
    I wouldn't be too quick to blame a battery chainsaw or leaf blower or string trimmer for damage in foul weather. That's likely an issue with the manufacturer failing to build it well enough. Consider how many decades scuba divers have used those little electric Sea Scooters that look like a torpedo - & they are completely submerged. More recently there are videos of the Nissan Leaf in deep water.



    Rather than a blanket prohibition look to what the manufacturer says about their different products. Maybe they build them - maybe they don't.
    A quick check for one manufacturer of electric chainsaws - stihl can run in the rain.
    .
     
    #812 hill, Oct 22, 2023
    Last edited: Oct 22, 2023
  13. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    23,852
    15,508
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    I sometimes use my Ego leaf blower off-label for clearing light snow.

    I have learned to do this only wearing gloves, and holding in just one hand at a time. If it happens to kick up a cloud of snow that blows back at it, it will give stronger shocks than you'd expect.

    When one arm gets tired, I kind of toss it to the other hand.
     
  14. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

    Joined:
    May 12, 2018
    7,140
    6,688
    1
    Location:
    Pennsylvania
    Vehicle:
    2018 Prius c
    Model:
    Two
    Speaking of off-label, I've used mine to (temporarily) induce a draft through the chimney on my backyard pizza oven. I set it at the lowest speed and aim the tip generally across and upward near the chimney exit.

    Gets that stone preheated to 900°F in about 20 minutes, with delicious results.
     
  15. Zythryn

    Zythryn Senior Member

    Joined:
    Apr 28, 2008
    6,237
    4,236
    1
    Location:
    Minnesota
    Vehicle:
    Other Electric Vehicle
    Model:
    N/A
    As I recall, that warning was also on my last ICE mower.
     
  16. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

    Joined:
    May 12, 2018
    7,140
    6,688
    1
    Location:
    Pennsylvania
    Vehicle:
    2018 Prius c
    Model:
    Two
    I had an electric lawnmower that said not to use it in the rain, but the warning was related to lawn health. Apparently it is easier to spread plant disease when cutting a wet lawn.

    Whether by rain or overnight condensation my lawn is wet from March to August, so I don't have much choice.
     
  17. John321

    John321 Senior Member

    Joined:
    Nov 16, 2018
    1,199
    1,198
    0
    Location:
    Kentucky
    Vehicle:
    2008 Prius
    Model:
    Two


    Kobalt 80v electric mowers use a sealed brushless motor and sealed switches - you could hit them with a fire hose and not have any concerns - the weak link is the battery compartment, and it is water resistant not waterproof - if it isn't cracked or damaged you can easily cut wet grass or cut in the rain.
     
    #817 John321, Oct 22, 2023
    Last edited: Oct 22, 2023
    Zythryn likes this.
  18. ETC(SS)

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

    Joined:
    Oct 28, 2010
    7,744
    6,544
    0
    Location:
    Redneck Riviera (Gulf South)
    Vehicle:
    Other Non-Hybrid
    Model:
    N/A
    Generally speaking I don't cut grass when it's raining or even when the lawn is wet following a shower or in the early morning or late evening - so it's not much of a problem for ICE or electric.

    Cutting when its dry is better for the equipment, the operator (if so equipped) and probably better for the grass.
     
    Prius Maximus likes this.
  19. Trollbait

    Trollbait It's a D&D thing

    Joined:
    Feb 7, 2006
    22,050
    11,517
    0
    Location:
    eastern Pennsylvania
    Vehicle:
    Other Non-Hybrid
    I have a plug in electric snow blower. It has never shocked me or shorted out, that I don't clear off after use.

    There could be other reasons to not do these chores while it is wet that have no relation to the tool used. Plus legal CYA may be the main drive for the warnings.
     
    Zythryn likes this.
  20. Stevewoods

    Stevewoods Senior Member

    Joined:
    Jun 10, 2014
    647
    986
    0
    Location:
    Seattle, WA
    Vehicle:
    2008 Prius
    Model:
    II
    This time of year in the Pacific Northwest, you have a bit of trouble trying to dodge rainy or foggy days.

    Last couple of years, got lucky, but not this year. Well, batteries are working in the chainsaw, will see how in the mower
     
    hill likes this.