Introducing the Bierer Battery Powered Hi-Pot Tester Kit (HP72DCXL-K)
As an employee of T and A Tools, I'm pleased to present the Bierer Battery Powered Hi-Pot Tester Kit (model HP72DCXL-K). This compact, battery-operated tester is designed for fast, reliable Hi-Pot testing of de-energized 15kV class cables in the field. Price: $1,974.99.
What this tester does
The HP72DCXL-K provides a quick and effective method to verify cable insulation integrity before energization. Producing up to 8,000 V DC from a Milwaukee M18 rechargeable battery, it lets technicians rapidly determine whether a cable can withstand high potential without breakdown — helping to confirm a cable is safe for service or identify faults that need repair.
Key features
- Purpose: High-potential (Hi-Pot) insulation testing for de-energized 15kV class cables to locate faults prior to energization.
- Output voltage: Up to 8,000 V DC suitable for 15kV class cable checks.
- Power source: Uses a Milwaukee M18 rechargeable battery (included) — fully cordless for field use.
- Indication: Clear analog readout that indicates “Good” or “Bad” based on leakage current/voltage behavior during the test.
- Portability: Small, lightweight, and designed for rapid deployment in various field locations.
- Kit contents: Tester, Milwaukee battery, and charger — everything needed for field operation.
- Safety: Intended for testing de-energized cables only. Follow grounding, isolation, and all manufacturer safety instructions.
Typical field usage (summary)
- Install the Milwaukee M18 battery and verify the tester powers up per the manufacturer's instructions.
- Connect the ground clamp and high-voltage probe to the cable under test, ensuring proper isolation and grounding of the work area.
- Activate the safety and power switch to apply high DC voltage to the cable.
- Observe the analog indicator to determine pass/fail (Good vs. Bad) based on leakage current or voltage drop.
Typical applications
- Utilities and electrical contractors use this kit to confirm cable integrity after installation or repair before returning lines to service.
- Field crews benefit from the cordless design and included battery/charger to perform tests in remote locations.
- Suitable for medium-voltage, 15kV class cable diagnostics where DC Hi-Pot testing is appropriate.
If you need a reliable, rugged, and truly portable Hi-Pot solution for field cable testing, check out the product page and order the kit:

