The Megger 246033 CT extension cable for the BITE 2-2P series includes one 20' (6 m) extension cable for connecting a compatible Megger current transformer to the Megger BITE 2 or BITE 2P battery impedance tester. It provides additional reach in applications where the current transformer's cable is not long enough.

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.