The Purkeys Liftgate Double Check tool can test a liftgate charging system to ensure proper operation.

The LDC provides a quick way to simulate the loads of a liftgate charging system. When using the appropriate connectors, the tool can test the truck and its connecting circuits to make sure they are working properly and capable of supporting a liftgate charging system, even without a trailer.

The LDC includes an LED light display that will tell a user when they're connected to a good power source and show amperage from the batteries. This helps determine if the system starts and operates properly.

It can fit a dual-pole, single-pole or 7-way connection and comes with connectors for all of those types. There is a breaker at the top for safety and there are two inputs for multimeter leads at the bottom of the LDC.