The Fluke BP29X Li-ion Battery is a standard capacity battery for use in Fluke 190 Series II and Series III ScopeMeter Test Tools, 120B Series ScopeMeter Test Tools, MDA-500 Series III Motor Drive Analyzers and 430-II Series Power Quality Analyzers. BP29X Li-ion batteries include a charge-status indicator so you can quickly and easily verify charge status in the field, and may be charged either in the instrument itself.