SELECT™ LIFTGATE CHARGING SYSTEM

SELECT LIFT GATE CHARGING SYSTEM
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SELECT™ LIFTGATE CHARGING SYSTEM

Product Overview

Purkeys’ SELECT™ liftgate charging system fully and efficiently charges liftgate batteries. The SELECT can draw power from either the tractor or the reefer via multiple paths (Stinger Cord, Reefer, or 7-Way Aux Pin). It can automatically detect the best path when necessary.

The SELECT has LED indicator lights that alert operators to any issues with the power source, path, or batteries. The system identifies where the issue lies in the circuitry, which reduces troubleshooting time.

The SELECT boosts voltage with its DC to DC converter. This boost helps overcome voltage drop from the truck to the liftgate batteries.

This system connects to the following:

  • Stinger Cord (Dual Pole and/or Single Pole)
  • Reefer Electrical System
  • 7-way Aux Pin

SELECT is Ideal for Fleets that:

  • Need reliable, easy-to-use systems
  • Run tractor trailers with multiple available power sources and paths
  • Have unknown power connections from the tractor to trailer

The SELECT meets all power liftgate charging requirements. There are different kits available to meet specific financial or technical needs.

PART #
APPLICATION
HARNESS LENGTH
SELECT-21-KIT REEFER AND DUAL POLE CONNECTION WITH CHARGING PLATE ASSEMBLY 50FT HARNESS
SELECT-22-KIT REEFER AND SINGLE/DUAL POLE COMBO CONNECTION WITH CHARGING PLATE ASSEMBLY 50FT HARNESS
SELECT-23-KIT REEFER AND 7-WAY CONNECTION WITH CHARGING PLATE ASSEMBLY 50FT HARNESS
SELECT-24-KIT DUAL POLE AND 7-WAY CONNECTION WITH CHARGING PLATE ASSEMBLY 50FT HARNESS
SELECT-25-KIT SINGLE/DUAL POLE COMBO AND 7-WAY CONNECTION WITH CHARGING PLATE ASSEMBLY 50FT HARNESS
SELECT-31-KIT DUAL POLE, REEFER AND 7-WAY CONNECTIONS WITH CHARGING PLATE ASSEMBLY 50FT HARNESS
SELECT-32-KIT SINGLE/DUAL POLE COMBO, REEFER AND 7-WAY CONNECTION WITH CHARGING PLATE ASSEMBLY 50FT HARNESS

Looking for more information? We have user guides and general product information available. Purkeys can provide you with the right information and solutions to keep you trucking.

Having problems? Purkeys has what you need for diagnosing issues you may experience with your Purkeys’ product. Contact us with your questions!

Purkeys warrants each product to be free of defects in material workmanship under normal use and service. This warranty benefits the customer and covers products made by Purkeys and sold by Purkeys or their authorized dealers. The warranty period is 24 months. This warranty is not valid if the product is not used correctly or is  altered without written consent. Defective products must be inspected by Purkeys as part of the warranty claims process. The warranty will not apply if the product is subjected to an accident, faulty repair, improper installation, neglect, or defects in the peripheral vehicle components.

What is a Select Liftgate Charging System?

The Select Liftgate Charging System uses two or three inputs from the stinger, 7-way cord, or reefer; an electronic controller; and a DC/DC converter to optimize charging voltage and extend liftgate battery charging times. LED indicators on the front of the controller show liftgate battery and charging system status to alert of potential charging system problems.

How do Select and Direct Liftgate Charging Systems optimize charging voltage?

Direct and Select Liftgate Charging Systems optimize liftgate charging voltage in two ways. First, the DC/DC converter eliminates the voltage loss associated with traditional extended length dual and single pole charging circuits by raising the low-charging voltage to the correct level. Second, the DC/DC converter adjusts charging voltage based on temperature, with higher voltages in cold weather and lower voltages in hot weather. These two features ensure optimal charging voltage to maintain maximum battery state of charge for increased liftgate performance and battery life.

How do Select and Direct Liftgate Charging Systems extend battery charging times?

Direct and Select Liftgate Charging Systems can extend battery charging times by keeping the DC/DC converter on, even when the truck or refrigeration unit is turned off. This is done by the controller, which monitors the truck/reefer battery state of charge and only allows extended charging to occur if the truck/reefer batteries are at a high state of charge. When the controller detects the truck batteries becoming discharged, it turns off the DC/DC converter, protecting the truck from a possible no-start condition.

What is voltage drop?

Voltage drop is the loss in voltage in all or part of a circuit when electrical current is flowing. Voltage drop can only occur when current is flowing.

How long does it take to install a Select or Direct Liftgate Charging System, and will it require special tools or training?

All Select and Direct Liftgate Charging Systems come with comprehensive installation and troubleshooting guides that include detailed text and photos. No special tools or training are required. The guides can also be accessed on our website (http://purkeys.net/select/#PRODUCT_INFORMATION and http://purkeys.net/direct/#PRODUCT_INFORMATION). Installation times vary, but first-time installations can generally be done in approximately 4 hours. Installations can be done in less than 4 hours once a technician becomes familiar with the process and trailers being worked on.

How do I know when the Select or Direct System is charging the liftgate batteries?

Select and Direct Systems have LED Indicators to assure the operator of proper system function. A properly charging system will have a Lift Battery and Source (Reefer, Stinger, or Aux) LEDs that are solid green when there is sufficient power available at one of the input sources.

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