LawnBott LB3510 / LB3550 Robotic Lawn Mower
(LawnBott LB3500 has been renamed to LawnBott LB3510 with improvements)
Read our LawnBott LB3510 LB3550 Review
 Brushless motors for the LB3510 and LB3550 now available Turn your LawnBott LB3500 into the new 2010 LawnBott LB3510
NOW SHIPPING: The LawnBott LB3510 and LB3550 robotic lawn mower with optional brushless motors. The LawnBott LB3510 robotic lawn mower is LawnBott's top of the line robot lawn mower and is the most sophisticated, feature packed household lawnmower on the market.
The LawnBott LB3510 robotic lawn mower can manage up to 1.25 acres lots (or up to 40,000 sq. ft. of lawn) with its standard double lithium battery.
The LawnBott LB3550 robotic lawn mower has all the same features of the LB3510 except that it comes with an extra 2 lithium batteries and it can mow over 2 acres lots (or up to 56,000 sq ft of lawn).
If your lawn is small, the LawnBott LB3510 could still be a great choice because it has many other benefits and features that other robotic lawn mowers simply do not have.
The LawnBott LB3510 & LB3550 uses an inclinometer 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.
The wide notched wheels of LawnBott LB3510 & LB3550 have been redesigned in 2010. On surfaces that are sloped, inclined and has minor dips and holes, these wide notched wheels are excellent for the job. These wider wheels are designed for maximum traction and spiked wheels are not required.

The wheels on the LB3510 are designed for various terrains and are safe to use on non-grass surfaces like sidewalks, and driveways, etc. The LawnBott LB3510 robotic lawn mower can handle up to 25-degree slopes.
The LawnBott LB3510 robotic lawn mower can manage up to 4 different zones. Three of those zone’s entry points are user settable; the remaining one is the docking zone. One feature that places the LawnBott LB3510 above the other LawnBott models is that the docking zone can be any size or could be turned off. This feature comes in handy if you’d like to locate the charging station in a concealed area. Contact us for details. If you are new to robotic lawn mowers, zones (or areas) are your front yard, back yard or side yard. The robotic lawn mower will mow more efficiently if these areas are divided. Once installed, the robotic lawn mower will automatically go to these zones and mow, then find its way back to the docking station without your help.
We gladly illustrate how to install your perimeter wire completely free of charge for all our customers.
FREE LawnBott installation plan.
Optional LB3510 and LB3550 brushless models are in stock. Current LB3510 owners (or LB3500 owners) can upgrade their mower to brushless motors.
The main advantage for having brushless motors is longevity. As you have probably figured out by now, the main wear and tear items on robotic lawnmowers are the motors. We are told by the manufacture that brushless motors will last up to 8 times longer than the regular motors. But brushless motors are more than just a motor upgrade. Here is a summary of advantages for brushless motors:
- All motors are estimated to last up to 8 times longer than the regular motors
- The mainboard is different (improved) and there is more communication going on between the mainboard and the motors than before.
- The new mainboard software / hardware is "smarter" for better slope/hill management, increased sensitivity to bumps and more
- The brushless motors are just a tad bit quieter than the regular motors.
- Blade modulation speeds have been tweaked
- Brushless motors use less power
The LawnBott are the only robotic lawn mowers that have been accepted by the US Consumer Product Safety Commission (CPSC).
When the handle of the LawnBott LB3510 is merely touched, it will immediately shut off the blade. In addition, if the robotic lawn mower is tilted or picked up, the blade will also stop. Robotic lawn mowers are generally safer than push lawn mowers and riding lawn mowers because a person does not need to be near it while it is running.
The outer shell of the LawnBott LB3510 automatic lawn mower floats freely over the chassis. When the lawn mower bumps an object, three sensors instantly detect the movement of the shell. The sensors particularly in the LawnBott LB3510 are more advanced than the ones in the other LawnBott models. Both types of LawnBott switches are more advanced and reliable than those used in the Robomower.
The alarm on the LawnBott LB3510 will sound when the robot lawn mower is picked up. The alarm is not as powerful as a car alarm, but it is just loud enough that you would not want to be holding it. The LawnBott also allows you to set a PIN code. The lawn mower will not operate unless the PIN code has been properly entered.
When the LawnBott LB3510 / LB3550 encounter a section of thick or high grass, it will automatically concentrate in this area by mowing in a spiral. This feature allows the robot mower ensure the lawn is cut evenly. We noticed that the LawnBott robotic lawn mower will spend more time in areas of the lawn that grow faster than the rest. Click here to see LawnBott LB3510 video in smart spiral mode.
The LawnBott LB3510 uses a double lithium battery. This battery is two regular LawnBott lithium batteries combined to fit into one power pack. Lithium batteries do not have a memory and contain a smart chip that helps the battery last 4 to 5 years before needing to replace. A single double battery can power the LawnBott over 5 hours. When upgraded to the LawnBott LB3550, this robotic lawn mower can mow up to 7 hours on a single charge. Combine that with the 3.5 hour recharge times; this electric lawn mower can be scheduled to mow twice a day for over 14 hours of run time each day! The LawnBott was designed with long work schedules in mind.
The LawnBott LB3510 has the most powerful blade motor compared to the other LawnBott robot lawn mowers. Also, as with the other LawnBotts, the LawnBott LB3510 has blade modulation. The robot mower sends just the right amount of current to the blade motor. On high grass, it sends a high current which speeds up the blade. On lower grass, it slows down. This extends the life of the batteries and the mowing motors. .
The LawnBott LB3510 robotic lawn mower is taking notes as it is mowing your grass. When this feature is enabled, it will eventually modify it is mowing schedule to adapt to how your grass is growing. For example, if you are in peak growing season, the LawnBott LB3510 will start spending more time cutting the grass. However, if grass growth is slowed, you will notice the robotic lawn mower skipping mowing sessions... it is not lazy. It is smart!
The LawnBott LB3510 and LB3550 are equipped with a rain sensor. With 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. You could disable the rain sensor via the user menu.
(coming soon)
The LawnBott LB3510 comes with a Bluetooth card installed on the main board. You can modify the mowing schedule or control the movements of the robotic lawn mower with an optional device that will be available soon...
The LawnBott LB3510 lawn mower can barely be heard standing 20 feet directly away from it. That is because this robotic lawn mower use quiet IMS motors which were designed specifically for LawnBott. The direct motor-to-wheel method does not use loud plastic gears found in the Robomower. Not only is motor-to-wheel very reliable, it is very quiet but yet more than powerful enough to handle steep slopes. Night time grass cutting is a huge advantage for robotic lawn mowers.
All LawnBott robotic lawn mowers have a "predicted" life span of 8-10 years. All parts are user replaceable so it could last as long as you want it to. Compare 8 to 10 years to the average life span of a push lawn mower or a riding lawn mower which is 2 to 5 years.
The included disturbance filter increases compatibility with dog fences and AM radio frequencies. Interference is not a problem for more than 99% of installs, but it is nice to have this filter if you need it.
The LawnBott LB3510 / LB3550 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 (LawnBotts.com exclusive) when you purchase a LawnBott from us.
These are just the highlights. The LawnBott LB3510 robotic lawn mower can do everything its little brother, the LawnBott LB3210 Evolution robotic lawn mower can do. If you have any questions, don't hesitant to contact us. We are here to help not just before you buy, but long afterwards. LawnBotts.com has a strong track record of 100% satisfied customers!
Every LawnBott robotic lawn mower has a two year manufacture 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 also have a 1 year warranty. Shipping is covered to and from your front door for the first 90 days for warranty repair issues. LawnBotts.com 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
LawnBott LB3550 Robotic Lawn Mower
Same as LawnBott LB3510 robotic lawn mower but with 2 additional lithium batteries for expanded mowing times. The LawnBott LB3550 can mow lawns over 2 acres in size and 25-degree slopes. Multiple LawnBott robotic lawn mowers can be installed on the same property to expand coverage well beyond 2 acres. The LawnBott LB3550 robotic lawn mower ships fully assembled.
LawnBott LB3510 Specifications
| Coverage |
LB3510: 40,000 sq.ft. of lawn or up to 1.25 acre lot
LB3550: 56,000 sq. ft. of lawn |
| Autonomous Mowing Zones |
4 |
| Mower Size (L x W x H) |
26 x 19 x 11 inches |
| Weight with Battery |
40 lbs. (LB3550: 46 lbs.) |
| Cutting Disc |
4 blade |
| Cutting Width |
14 inches |
| Cutting Height |
0.75 - 3.1 inches |
| Cutting Speed |
95 feet per minute |
Instant Blade Shut-Off
Touch Handle |
YES |
| Average Working Time |
4 - 5 hours |
| Charging Time |
2.5 - 4 hours |
| Battery Type |
Double Lithium (LB3550: extra 2 Lithium) |
| Hill Capability |
25 degrees |
| Auto Recharge |
YES |
| Auto Programming |
YES |
| Rain Sensor |
YES |
| Remote Control |
Bluetooth (coming soon) |
| Drive System |
2WD |
| Software Update by Internet |
YES |
| Alarm |
YES |
Brushless Blade
and Wheel Motors |
Available |
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What is in the LB3510 box
| LawnBott LB3510 Robot Mower |
Battery charger |
| Recharging Base |
Double Lithium Battery (pre-installed) |
| 660 ft. Perimeter Wire |
Blade (reversible) |
| 200 Pegs |
Installation DVD & Manual |
| Perimeter Signal Transmitter |
Our exclusive USB Upgrade Cable* |
| LawnBott Disturbance Filter |
Our exclusive Tips & Advice Guide* |
| Unlimited Support |
Customized Perimeter Wire Installation Plan* |
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*Included only when you order from LawnBotts.com

| Transformer Cover: A must-have for protecting the transmitter & charger from water |
| Additional LawnBott Pegs (about 300 Pegs per 500 ft. of Wire) |
| LawnBott Wire (500 ft. per 1/4 acre) |
| Additional LawnBott Blade |
| LawnBott Winter Charge Kit |
| LawnBott LB3500 / LB3510 Root Kit (Optional) |
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LawnBott LB3500 / LB3510 Installation Course and Manual
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