The Megger BI-10004 Amp/Burndy lead set for the BITE 3 series includes one 56" (140 cm) test lead with two 2-pin male amp Burndy connectors for testing batteries with 2-pin amp Burndy connections. It is for use with the Megger BITE 3 battery impedance tester. Insulation on the wire helps protect the operator's hands from shock.

Battery testers are used in the industrial, commercial, medical, telecommunications, aircraft, power utility, and military industries to detect the health of a battery. They can measure conductance, impedance, voltage, and current, among other parameters. Battery testers are designed for specific types of batteries, such as lead-acid, nickel-metal-hydride (NiMH) and alkaline batteries. Some testers require a load to be applied to the battery during testing, and some do not. A variety of test leads with contacts, probes, clamps, clips, and other connectors can be used to connect a battery to a tester. Since different testers can measure different parameters to calculate battery health, it is important to use the same tester for consecutive tests on a single battery when analyzing changes in battery health over time.