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NOTE: Automatic Fender 5 was discontinued few months after the Automatic Fender 6 introduction.

Hanging the bow fenders on many boats is uncomfortable. Now, using the Automatic Fender™, we can dock without leaving the Cockpit!

The Automatic Fender deploys the bow fenders with a single push of a button, without the need to climb onto the boat's bow/deck. The fenders are stored horizontally under the railing, almost invisibly. The Automatic Fenders are made of a very durable, white and shiny Polycarbonate/ABS material. They blend nicely with the boat; making them almost invisible. 

Fender height from the water is set to support different height docks and rafting/tethering (boat to boat) tying.  Operation and installation are very simple: only three clamps to connect (no drilling). The Automatic Fender comes with a rechargeable battery, charged using a solar cell and Bluetooth communication. 

To avoid expert installation or any electrical connection to the boat, we made significant investments in extremely low power design, large solar cell, large batteries and easy to install clamps. For maintenance-free long-lasting operation, all electronic parts are sealed and conformal coated. 


         It takes only 2 sunny days a year for the upward facing solar to keep the batteries fully charged. 

         The Automatic Fender supports operation even in cloudy regions and covered docking. The horizontally facing, large solar, provides defused light charging in shaded areas. 

Due to its large battery and very efficient power operation, the Automatic Fender can be stored for winter in an indoor storage and will still retain power until Summer. It will retain power even if the boat stays in storage for winter! 

The Automatic Fenders can be controlled from any location on the boat, and are delivered with a unique username and password to prevent unauthorized operation and deter theft. The Automatic Fender supports up to and including 8” center (through) hole fenders (20” in length). 

The Automatic Fender eases bow fenders deployment in Cruisers, Fishing boats, Offshores, Speedboats, and any boat with inconvenient bow access. In most boats, stern access is convenient; therefore, we do not promote the Automatic Fender for the stern fenders. In large boats the Automatic Fenders can be used as the bow and midship fenders. 


From all fender Baskets and fender storage solutions they are the best looking. The fenders are stored horizontally under the railing, not blocking the captain's view. 

Designed and manufactured in California, USA. Shipping worldwide.



  • Deploy/Lift with a single push

         of a button

  • Beautiful, very strong and durable Polycarbonate/ABS product

  • Fenders stored horizontally under the railing, almost invisibly

  • Very simple installation & operation

  • No electrical connection to the boat, built in Solar and Bluetooth 

  • Memorizes line length for your docking site

  • ​Supports tethering/rafting

  • Supports different size center (through) hole fenders

Happy wife, happy life!

NOTE: Automatic Fender 5 is a discontinued product.

Automatic Fender on a beautiful 34' Sea Ray Sundancer. Thank you, Carol and Larry, for sharing!

Automatic Fenders on a beautiful 40' Regal. Thank you, Marilyn and Rich, for sharing!

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40’ Sea Ray Sundancer upgraded to Bow and Midship Automatic Fenders. Thank you, Larry!

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Power Fenders on a beautiful 37' Bayliner.

Thank you, Karen and Scott, for sharing!


Automatic Fenders on a beautiful 36' Doral Boca Grande. Thank you, Melissa and Glenn, for sharing!


Automatic Fender installation on a beautiful Nordic Speedboat. Thank you, Bill, for sharing!

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Automatic Fenders on a beautiful 40' Tiara. Thank you, Donald, for sharing!

Automatic Buoy Bumper
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Automatic Fender installation on a beautiful 29' Regal. Thank you, Darryl, for sharing!


40’ Sea Ray Sundancer upgraded to Bow and Midship Automatic Fenders. Thank you, Larry!

Automatic Fenders on a beautiful 31’ Ranger Tug. Thank you, Mike, for sharing!

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For more installation images, please visit our Testimonial Page

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The Automatic Fender™ 5 Design

NOTE: Automatic Fender 5 is a discontinued product.

Our objective was to build a beautiful, very strong, and durable product, which is very simple to install and operate. This required an innovative design:


Withstanding the line tension while docking

The line's tension while docking may be very significant. Withstanding that tension without building a very large and expensive product was one of the biggest design challenges. To handle the line tension/force we tested thick docking line implementations, a spring addition, a rubber strip addition and quite a few additional creative options. Testing showed that the best solution is deflecting that force by using a strong, Nylon line. Nylon is a good shock absorber. The longer the line, the better it absorbs.

When manually deploying the fender, the total line length from the fender to the cleat or stanchion is about 4 feet. The Automatic Fender’s Nylon line is 18 feet long and provides a good shock-absorbing effect! It runs from the stanchion or cleat to the center hole fender and back to the Automatic Fender; the remaining line is stored in a pulley inside the Automatic Fender. 

Adding a shock-absorbing line reduces the stress on the Automatic Fender, the boat’s cleat or stanchion, and on the center hole fender.

Product longevity

To achieve the best longevity and maximum strength a 50% Polycarbonate and 50% ABS, high-pressure, custom-made injected enclosure was developed. All bolts and nuts are stainless steel. All electronic parts are CRC Urethane conformal coated and are stored in a sealed enclosure. The solar cells are PET coated!


Easy installation without electrical connection to the boat

To reduce the overall cost (product plus installation cost), the Automatic Fender can be installed easily by the boat owner. The product is self-contained using a Lithium Ion battery and Bluetooth connectivity. No electrical connection to the boat is required. The battery is kept charged by two solar cells:

  • On sunny days, while being exposed to the sun, the top cover solar cell is the main energy source.

  • On cloudy days or while under a covered area, the large solar cell in the front of the Automatic Fender charges the batteries using diffused light. 

Theft deterrent

Each Automatic Fender has a microprocessor and a unique identification number. The identification number is stored in the company’s server with the user’s unique username and password. Each Automatic Fender can be operated only by its assigned user!


Ease of operation

Username and password can be stored locally on your phone or tablet. The Automatic Fender application can be downloaded to multiple smartphones and tablets. To allow a seamless transition between different phones and tablets, all parameters and status of each Automatic Fender are saved on our server. We do not have access to and we do not store any personal information. We have access to and store only information directly related to the Automatic Fenders.


Battery power management

While not being exposed directly to the sun, the large Lithium Ion battery can maintain power for about 9 months! That was achieved by:

  • Detailed power management of the Automatic Fenders Printed Circuit Board (PCB). The PCB is divided into several power sections and each section is enabled only while used. That way, very minimal power is consumed while the Automatic Fender is stored or not being in use.

  • Power management of the Bluetooth communication component: when the battery is fully charged and having strong irradiance the Bluetooth will “advertise” frequently and get connected seamlessly. When the boat is in storage or when the battery level is critically low the Bluetooth component is being moved to low power consumption mode (conserving power and connecting slightly slower).



Battery longevity

A significant effort was made to eliminate battery degradation over time, the Automatic Fender’s battery will last for over 15 years!

The Automatic Fender battery management compared to Notebook computer and Cellphone batteries:

  • The #1 reason Cellphone and Notebook computer batteries degrade over time is battery cycles. Battery cycles are defined as charging and then draining the batteries below 50% of their full capacity. In Cellphones and Notebook computers battery cycles happen in daily basis. We designed the Automatic Fender with a very large battery that will not drain more than 10% during normal or even intensive use. Therefore, the Automatic Fender batteries are not subject to the #1 battery degradation cause

  • Fast charge is considered the #2 battery degradation cause. Cellphones and Notebook computer batteries require fast charge, as the user needs the ability to charge in a short period of time. The Automatic Fender battery is being charged slowly, over time, using 2 solar cells. The Automatic Fender it is not subject to the 2nd most prominent cause for battery degradation.


  • Battery temperature at full charge is the #3 reason for battery degradation over time. Fully charged batteries will degrade if kept in a warm environment. In the Automatic Fender we implemented a sophisticated algorithm that takes into account ambient temperature and irradiance levels, to determine battery maximum charge. When the ambient temperature and solar irradiance are high the Automatic Fender batteries will not be brought to full charge. That way the Automatic Fender charging algorithm eliminates the degradation caused by high ambient temperatures.

  • Battery “memory” is considered as the #4 most prominent cause for battery degradation. Battery “memory” happens when batteries which are not fully discharged “remember” their residual charge. In that case batteries will not allow full charge even if they are connected to a charger for an extended period. In the Automatic Fenders we only use Lithium Ion batteries. Lithium Ion batteries are not subject to the battery “memory” effect.


The Automatic Fender is continuously being tested in two environmental Chambers:

  • The first Chamber running temperature cycles -25 degrees Celsius (- 13 degrees Fahrenheit) to +75 degrees Celsius (167 degrees Fahrenheit)

  • The second Chamber constantly at + 75 degrees Celsius which is the most extreme temperature

Both Chambers are at about 95% humidity and contain salt!


The Automatic Fender was tested while being underwater!


Automatic Fender cost drivers:

For the highest strength and durability, the product enclosure is made of high pressure, custom injected, Polycarbonate/ABS. These parts are the most expensive component in the overall product cost. All bolts and nuts are stainless steel, which provides the best longevity. The line is made out of strong Nylon and is 18’ long!

To allow a very easy installation with no electrical connection to the boat, two solar cells and a large Lithium Ion battery were added. Allowing electrical connectivity to the boat could have reduced the product cost but would have increased the overall cost (product plus installation cost). Therefore, a self-contained design, with no electrical connection to the boat was chosen.

The batteries used are Lithium Ion, which have many advantages (described in the Q&A section) but are higher in cost. The Automatic Fender is designed and manufactured in the USA. 

The Automatic Fender functionality is continuously tested on the company’s cruiser and running lift / deploy cycles in the lab. A Few Automatic Fenders ran more than 200,000 lift / deploy cycles without a single failure!

The Automatic Fender will give critical health alerts about the system from remote, with an Onstar like monitoring system if necessary!

Each Automatic Fender™ is self contained, no wiring or drilling, just clamp it on and go!!


Front View

Automatic Fender design
Play Video

Mechanical assembly

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