The Megger 6280-333 battery charger charges the battery supplied with a Megger DLRO10 or DLRO10X digital low resistance microhmmeter (sold separately). The charger recharges the internal battery of the microhmmeter from a 115 or 230V 50/60Hz electrical outlet. The 6280-333 is used to charge the battery of a DLRO10 or DLRO10X microhmmeter, which is used to conduct resistance tests of electrical equipment.

Megger manufactures equipment for cable fault locating, protective relay testing, telecommunications and data integrity, and power quality testing under multiple brand names, among them Megger, Biddle, States, and AVO. The company, founded in 1889, is headquartered in Dover, England, and meets International Organization for Standardization (ISO) 9001:2008 standards.