Tekonsha Shur-Set III Breakaway System w/5 Amp/Hr Battery (with Charger) (Includes #2010 Nylon Breakaway Switch)Tekonsha$128.39In Stock
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For use on 1-4 axle trailers equipped with electric brakes, these complete systems incorporate the highest quiality components in trailer breakaway systems and meet or exceed Department of Transportation (DOT) specifications regarding trailer breakaway and holding requirements.
| BRAND: | TEKONSHA |
| PART NUMBER: | 2026 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 5 LBS |
| TERMINAL GENDER: | MALE |
| TERMINAL TYPE: | BLADE |
| VOLTAGE: | 12 V |
| NUMBER OF TERMINALS: | 2 |
| LENGTH: | 6.6 IN. |
Tekonsha is a leading manufacturer of electronic trailer brake controllers, pioneering the category in the 1970s. The lineup spans proportional units such as the Prodigy P3 and Prodigy iD, time-delayed controllers, the wireless Prodigy RF, plus vehicle-specific wiring harnesses, adapters and trailer brake components engineered for smooth, predictable stopping at any speed.
Tekonsha Engineering Company began in 1964 building RV steps and mirrors. Within a few years it had found its real calling, and by the 1970s Tekonsha was pioneering the manufacture of electronic trailer brake controllers, the product category that still defines the brand. More than half a century later it remains the reference name in trailer braking and is part of the Horizon Global group alongside Reese, Draw-Tite, Fulton, Bulldog and Wesbar.
A brake controller is the component that tells a trailer's electric brakes how hard to work and when, and getting that right is the difference between a controlled stop and a shove from behind. Tekonsha builds both major types. Proportional controllers use an internal accelerometer to sense how quickly the tow vehicle is slowing and apply trailer braking to match, so light braking stays light and hard braking is immediate. Time-delayed controllers ramp to a preset output over a fixed interval, a simpler and more economical approach that suits occasional towing.
The current brake controller range covers most of that ground. The Prodigy iD pairs with a phone through Tekonsha's EDGE technology for setup and monitoring, the P3 offers storable settings for multiple trailers and a trilingual colour LED display, the Prodigy P2 adds a dimmable display and boost mode for heavier loads, and the Voyager keeps operation simple and dependable. The Prodigy RF mounts to the trailer itself and controls wirelessly, which suits rental fleets and drivers who swap tow vehicles.
Installation is supported by vehicle-specific brake control harnesses that plug into a factory connector rather than requiring cut-and-splice wiring, along with mounting brackets and adapters. Matched controller bundles pair a unit with the correct harness. Products are tested to meet and often exceed published industry standards.
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The kit includes a 12 Volt sealed lead-acid battery, a battery charger (ABCD/Accelerated Battery Charging Device), a battery case, and a breakaway switch with cable. The battery case has a cover that must be secured with a UV-resistant zip tie. The breakaway switch bracket requires a 1/4 inch bolt and lock nut or two 1/4 inch jam nuts, which are not included in the kit and must be sourced separately.
The battery measures 3.54 inches long, 2.76 inches wide, and 4.13 inches high. The terminals are fasten tabs measuring 0.187 inches by 0.032 inches. The battery is rated for 12 Volt operation with a maximum charge current of 1.2 amps.
Under normal operating conditions, the battery provides 4 to 5 years of service life in standby applications, or 200 to 1000 charge/discharge cycles depending on the depth of discharge and rate of charge.
The system is designed for trailers with breakaway brake systems. The battery case must be mounted securely to the trailer frame, jack post, or other suitable location. The breakaway switch cable must have an unobstructed line of pull toward the tow vehicle in the event of separation. The system requires a 12 Volt tow vehicle electrical system and connection to the trailer's brake control output.
The breakaway switch bracket must be bolted to the trailer frame or battery case bracket using either one 1/4 inch bolt with a lock nut, or two 1/4 inch jam nuts. These fasteners are not included in the kit and must be purchased separately.
The manual does not specify required tools. However, installation involves mounting the battery case to the trailer frame (requiring fastening hardware), bolting the breakaway switch bracket (requiring a wrench or socket for 1/4 inch fasteners), stripping and soldering wire connections, and securing the battery case cover with a UV-resistant zip tie.
No. The trailer must be disconnected from the tow vehicle before installing the battery and charger into the battery case. This is a required safety step before wiring the system per the schematic diagram.
The battery case must be mounted securely to the trailer frame, jack post, or other suitable location on the trailer. The breakaway switch cable should be oriented toward the tow vehicle. The switch location must be selected to ensure an unobstructed line of pull in the event of vehicle separation.
The negative (–) terminal must attach to ground (chassis ground of the tow vehicle). The positive (+) terminal must attach to the breakaway switch. Improper installation of polarity will destroy the brake control. All wire connections must be soldered and properly insulated.
Attach the breakaway switch cable to the tow vehicle frame, ensuring the cable does not drag on the ground and no strain or restriction is placed on the cable. Do not hook the cable to the safety chain loop or hitch ball.
Do not over-tighten the bolt. The breakaway switch must be able to pivot freely. Tighten only enough to secure the bracket firmly while allowing the switch to move.
Use a UV-resistant zip tie to secure the cover to the battery box. The zip tie should be passed through one or both of the holes provided on the cover. This prevents accidental opening of the battery box.
Red wire carries the +12 Volt positive supply from the tow vehicle. Black wire is used for ground connections. Blue wire connects the breakaway switch to the brake output from the trailer brakes. White wire provides ground from the trailer chassis. All connections must be soldered and properly insulated.
The automatic reset circuit breaker protects the 12 Volt supply circuit from the tow vehicle. The schematic shows it in the red (+12 Volt) supply line. The manual does not specify the amperage rating or provide detailed operation instructions for this component.
Yes. To charge the breakaway battery only when the tow vehicle is running, a battery isolator may be installed in the 12 Volt supply line (red wire for tow charger). This prevents the secondary battery from drawing current from the tow vehicle's battery when the engine is off. Without an isolator, the secondary battery will draw current from the tow vehicle's battery whenever the tow vehicle is connected to the trailer.
Check the condition of the battery prior to each trip. Verify that all wiring and connections are secure. A short or open circuit can result in a no-brake condition, so inspect the breakaway system periodically to ensure safe operation.
Disconnect the trailer plug before testing the breakaway unit. Failure to disconnect the trailer plug will result in severe damage to the electronic brake control.
Do not place batteries in close proximity to objects that can produce sparks or flames. Do not attempt to disassemble batteries; contact with sulfuric acid may cause harm. Do not throw batteries into fire; batteries so disposed may rupture or explode. Fasten batteries tightly and provide shock absorption if exposure to shock or vibration is likely. Do not expose the battery case to organic solvents or adhesives.
Due to the characteristics of sealed lead-acid batteries, after six to nine months of storage, the battery should be recharged. This helps maintain battery health and extends service life.
The maximum charge current must be limited to 1.2 amps or less. Charging at a higher rate can damage the battery. Provide adequate air circulation when charging the battery, and do not charge the battery in any container besides the supplied battery box.
Tekonsha charger model 2024-07 is recommended for proper charging of the breakaway battery. This is a Heavy Duty Multi Stage/Maintenance Charger suitable for recharging the secondary battery if excessive discharging occurs.
For optimal performance, it is recommended that breakaway devices be replaced every 3 to 5 years.
Avoid exposing batteries to heat. Service life is shortened considerably at ambient temperatures above 30°C (86°F). Batteries should not be stored in a discharged state or at elevated ambient temperatures.
Over or undercharge is the single worst enemy of lead-acid batteries. Avoid both conditions to maximize battery life. Charge the battery at the proper rate (1.2 amps or less) and avoid storing the battery in a discharged state.
The system fits trailers with breakaway brake systems and 12 Volt electrical systems. The battery case mounts to the trailer frame or jack post, and the breakaway switch cable must have an unobstructed line of pull toward the tow vehicle.
You need one 1/4 inch bolt with a lock nut, or two 1/4 inch jam nuts. These are not included in the kit.
Yes. All wire connections must be soldered as a safety requirement. Properly insulate all connections after soldering.
Negative (–) terminal must attach to ground; positive (+) terminal must attach to the breakaway switch. Incorrect polarity will destroy the brake control.
Yes, by installing a battery isolator in the red (12 Volt supply) wire. Without an isolator, the secondary battery will draw current from the tow vehicle's battery whenever connected.
Disconnect the trailer plug before testing. Failure to do so will cause severe damage to the electronic brake control.
Maximum charge current is 1.2 amps. Charge only in the supplied battery box with adequate air circulation.
A short circuit or open circuit in the wiring and connections can result in a no-brake condition. Check the breakaway system periodically to ensure that all wiring and connections are secure. Verify proper polarity: negative terminal to ground, positive terminal to breakaway switch.
Check the battery condition and recharge it using a Heavy Duty Multi Stage/Maintenance Charger. Tekonsha charger model 2024-07 is recommended for proper charging. Ensure the charge current does not exceed 1.2 amps and that the battery is charged only in the supplied battery box with adequate air circulation.
When the secondary battery needs charging, current will be drawn from the tow vehicle's battery at any time the tow vehicle is connected to the trailer. To prevent this and charge only when the vehicle is running, install a battery isolator in the 12 Volt supply line (red wire for tow charger).
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May 22, 2023
| Part Number | Description | Packaging | Master Carton |
|---|---|---|---|
| 1026 | Includes 2018 Polymer Battery Case with A-Frame or Post Mounting Bracket, 2023 Rechargeable Sealed 12v 5 Amp-hr Lead Acid Battery and Terminals and 2005-P Breakaway Switch, Up to 3 Axles | Boxed | 4 |
| 1028 | Includes 2018 Polymer Battery Case with A-Frame or Post Mounting Bracket, 2023 Rechargeable Sealed 12v 5 Amp-hr Lead Acid Battery and Terminals, 2005-P Breakaway Switch and 1024 DC-to-DC Accelerated Battery Charging Device (ABCD), Up to 3 Axles | Boxed | 4 |
| 2026 | Includes 2018 Polymer Battery Case with A-Frame or Post Mounting Bracket, 2023 Rechargeable Sealed 12v 5 Amp-hr Lead Acid Battery and Terminals and 2010-P Breakaway Switch | Boxed | 4 |
| 20015 | Includes 2051 Lockable All Polymer Battery Case with Flat Surface Mounting, 2023 Rechargeable Sealed 12v 5 Amp-hr Lead Acid Battery and Terminals and 2010-P Breakaway Switch | Boxed | 4 |
| 20010 | Includes 20000 Lockable Polymer Battery Case with Weldable Flat Surface Mounting, 2023 Rechargeable Sealed 12v 5 Amp-hr Lead Acid Battery and Terminals and 2010-P Breakaway Switch | Boxed | 4 |
| 2028 | Includes 2018 Polymer Battery Case with A-Frame or Post Mounting Bracket, 2023 Rechargeable Sealed 12v 5 Amp-hr Lead Acid Battery and Terminals, 2010-P Breakaway Switch and 2024-07 DC-to-DC Heavy Duty Quick/Maintenance/Multi Stage Battery Charger | Boxed | 4 |
| 20025 | Includes 2051 Lockable All Polymer Battery Case with Flat Surface Mounting, 2023 Rechargeable Sealed 12v 5 Amp-hr Lead Acid Battery and Terminals, 2010-P Breakaway Switch and 2024-07 DC-to-DC Heavy Duty Quick/Maintenance (Multi Stage) Battery Charger | Boxed | 4 |
| 2020 | Includes 20000 Lockable Polymer Battery Case with Weldable Flat Surface Mounting, 2023 Rechargeable Sealed 12v 5 Amp-hr Lead Acid Battery and Terminals, 2010-P Breakaway Switch and 2024-07 DC-to-DC Heavy Duty Quick/Maintenance (Multi Stage) Battery Charger | Boxed | 4 |