Power and Test Boat, Utility and Small Cargo Trailers Without a Truck – Plug-and-Play Trailer Tester Comptaible with DeWalt® 20V Batteries
The MINI MUTT® is an automatic, plug-and-play 4-pin trailer tester that quickly verifies proper lighting operation with a built-in power-tool battery adapter compatible with DeWalt® 20V batteries. Simply connect a battery, plug the unit into a trailer, and turn the MINI MUTT® on for automatic testing that powers all trailer lights, simulates flashers, and protects against short circuits; no truck, cables, or additional adapters required. This compact, durable unit is designed to withstand heavy use with a convenient handle for hanging on trailer jack handles during testing.
Features and Benefits
- Quickly power all circuits and test for shorts
- 30-second inspection tests tail, directional and brake light circuits
- Powers everything at once and simulates flashers
- Short circuit indication with automatic circuit protection
- All-in-one tester, no wires or cables needed
- Low-profile design with integrated power-tool battery adapter for convenient power supply
- #4001-D20 – Compatible with DeWalt® 20V batteries (battery not included)
- Convenient handle design keeps tester out of dirt and within eyesight
DEWALT is a trademark of Stanley Black & Decker, Inc. Innovative Products of America, Inc. is not affiliated with, authorized by, endorsed by, or sponsored by either company. Use of this adaptor is not endorsed by either company and may affect the battery or tool warranty. Consult the battery manufacturer’s terms for details.
WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.




















