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LawnBott LB85EL Robot Mower        Demo Units

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LawnBott LB85EL Robotic Lawn Mower
The LawnBott LB85EL is discontinued.
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NewLawnBott LB85EL Robotic Lawn Mower

  • Robomow vs LawnBott

    The LawnBott LB85EL is LawnBott's lowest priced brushless robotic lawn mower. The LB85EL is a great choice for medium to small lawns. It has many key features of the flagship LawnBott but without the cost.

    Coverage Area
    This LawnBott LB85EL weighs 29 pounds and can manage up to 24,000 square feet of lawn. That amounts to lot sizes up to 3/4 of an acre when you take into considering your house, driveway and other un-mowed areas.

    NewAnti-Stuck Detection
    Anti-stuck detection is a feature we are excited about. The LawnBott LB85EL and LB75DX are the first LawnBott lawnmowers to incorporate a system in which the lawn mower becomes aware if it becomes stuck (unable to move due to an unexpected deep hole or dip) in your yard. When triggered, the robotic lawn mower will automatically "dance" and "jiggle" its way out of the hole then resume mowing as normal.

    NewDog Fence Compatibility
    The LawnBott LB85EL automatic lawn mower uses the most advanced TX-S1 transmitting signal, which allows the LawnBott lawnmower to run with less interference while other electronic or wireless devices such as dog fence containments are near by. The LawnBott LB85EL has been tested to not interfere with top invisible dog fence brands.  If you have an electronic dog fence, please check with us for compatibility.

    28-Degree Slopes28-Degree Slopes
    The new spike grip design ensures this robot can handle many sloped lawns. LawnBott LB85EL can mow up to 28-degree slopes.

    4 Areas Automatically Managed
    LawnBott LB85EL can cover up to 4 mowing zones automatically with 3 user set entry points. (The docking zone cannot be adjusted.) Zones are sections of your lawn. For example: your front yard can be one zone. Your side yard could be another zone and backyard a zone. In many yards the front and side areas can be combined into one zone depending on the size and yard configuration. LawnBott LB85EL will follow the perimeter wire until it reaches the desired zone then mow inside. After it completes mowing, the lawn mower robot follows the wire back to the docking station to charge.

    FREE LawnBott installation plan
    We gladly illustrate how to install your perimeter wire completely free of charge for all our customers.

    Direction Control
    LawnBott LB85EL uses on board technology to keep direction when mowing hills. This feature is useful for lawns with hills or slopes because it keeps the lawn mower on its intended course which results in your lawn being completed quicker.

    Brushless Wheel and Blade Motors
    One great advantage of brushless motors is longevity. The main wear and tear items on robotic lawnmowers are the motors. The manufacturer states that brushless motors can last up to 8 times longer than standard brushed motors. However, brushless motors are more than just a motor upgrade. Advantages of brushless motors include:

    • All motors are estimated to last up to 8 times longer than the regular motors
    • The mainboard is (improved with better communication between the mainboard and the motors
    • The new mainboard software / hardware is "smarter" with improved slope/hill management, increased sensitivity to bumps and more
    • The brushless motors are quieter than the regular motors
    • Blade modulation speeds are improved
    • Brushless motors use less power

    NewAndroid / iOS Apps
    The LawnBott app allows you to control your lawn mower from your smartphone. From the app, you can use your LawnBott as a remote control lawn mower within the mowing perimeter area.
    Bluetooh Remote Control App App Store Google Play

    NewSMS Feature (optional)
    The optional LawnBott SMS feature sends notifications and alerts directly to your cell phone. Once the SIM card is installed in your LawnBott, you can receive notifications, status and error messages to up to two phone numbers.  Click here to purchase.

    CPSC Accepted - August 21, 2008US Consumer Product Safety Commission Accepted
    LawnBott are the only robotic lawn mowers that have been accepted by the US Consumer Product Safety Commission (CPSC).

    Bump Sensors
    Bump sensors are activated when the LawnBott gently encounters an object such as a tree, wall, or any object over 4 inches high. This feature protects the mower as well as objects that may be on the lawn.

    Smart Spiral Mode
    When LawnBott LB85EL encounters a section of thick or high grass, it automatically concentrates in this area, mowing in a spiral. This feature allows the robot mower to ensure the lawn is cut evenly. LawnBott robotic lawn mower will spend more time in areas of the lawn that grow faster than the rest.

    Rain Sensor
    LawnBott LB85EL is equipped with a rain sensor. When the LawnBott senses rain, it will automatically stop the blade and return to its docking station. The rain sensor could be set to have the robotic lawn mower stay in the dock until you restart it. The rain sensor can be disabled via the User Menu.

    Lithium Batteries
    LawnBott lithium batteries weight about 2 lb. each. These user replaceable batteries do not have a memory and have a computer chip inside to ensure they meet the 4 to 5 years life expectancy of the battery. A single lithium battery can power LawnBott LB85EL about 3 hours on a single charge and it only takes about 2 to 3 hours to recharge. Quick recharge time allows this robotic lawn mower to mow up to three times in one day!

    Quiet Motors - Night Time Mowing
    LawnBott LB85EL lawn mower can barely be heard standing 15 feet directly away from it. That is because this robotic lawn mower uses quiet brushless motors designed specifically for LawnBott. LawnBott’s direct motor-to-wheel method is very reliable, very quiet and yet more than powerful enough to handle steep slopes.

    Firmware upgradeable over internet - Free
    LawnBott LB85EL firmware can be upgraded completely free of charge by connecting the robotic lawn mower to a computer that is connected to the internet. You receive a free USB upgrade cable ( exclusive) when you purchase a LawnBott from us.

    Longer Life Span than Riding Lawn Mowers & Push Lawn Mowers
    LawnBott robotic lawn mowers are low maintenance when compared to traditional alternatives.  Think long-term: the LawnBott LB75DX has a predicted lifespan of 8 - 10 years.  Since it is user serviceable and easy to repair, it could last as long as you want it to.

    Every LawnBott robotic lawn mower has a two-year manufacturer backed warranty. Extended warranties are available. The warranty covers the whole robot, parts and labor (except for the cutting blade and cosmetic light bulb). Lithium batteries have a 1 year warranty. Shipping is covered to and from your front door for the first 90 days for warranty repair issues. is factory trained and authorized for diagnosing, repairing and servicing your LawnBott in or out of warranty. We are open 7 days a week and most holidays for your convenience. If you have any questions, please contact us.

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    LawnBott LB85EL Specifications

    Coverage Grass 24,000 square feet
    Lot Size Up to 3/4 acre
    Autonomous Mowing Zones 4
    Mower Size (L x W x H) 22 x 17 x 11 inches
    Weight with Battery 29 pounds
    Cutting Disc 4 blades (Revisible)
    Cutting Width 12 inches
    Cutting Height 0.75 - 2.8 inches
    Cutting Speed 100 feet per minute
    Average Working Time 3 hours
    Charging Time 2.5 - 3 hours
    Lithium Battery Ion 6.9 Ah
    Hill Capability 28 degrees
    Auto Recharge Yes
    Auto Programming No
    Rain Sensor Yes
    Drive System 2WD
    Software Update by Internet Yes
    Alarm No
    Brushless Blade
    and Wheel Motors
    Cube 3D Board No
    Bluetooth App Board Yes
    Remote Control Optional (via LawnBott App on smartphone devices)
    SMS Optional (Sends text notification - up to two numbers)

    What is in the LB85EL box

    1. LawnBott LB85EL 10. Power Supply
    2. Keypad 11. Charging Station
    3. Rain Sensor 12. Perimeter Signal Transmitter
    4. Lithium Battery 13. User Manual
    5. Handle 14. Blade Height Adjusted Tool
    6. Blade (reversible) 15. Unlimited Support*
    7. Perimeter Wire* 16. Our exclusive USB Upgrade Cable*
    8. Pegs 17. Our exclusive Tips & Advice Guide*
    9. Power Cable 18. Customized Perimeter Wire Installation Plan*
      *Included only when you order from

    Inside LawnBott LB85EL Box

    Recommended add-on Accessories:
  • Transformer Cover: A must-have for protecting the transmitter & charger from water
  • Additional LawnBott Pegs (about 300 Pegs per 500 feet. of Wire)
  • LawnBott Wire (500 feet per 1/4 acre)
  • Additional LawnBott Blade
  • LawnBott Winter Charge Kit

  • LawnBott LB85EL User Manual and Installation Course

    LawnBott LB3510 Manual LawnBott LB85EL Operating Manual
    LawnBott LB3500 Installation Course LawnBott LB85EL Installation Course
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