Compatible with the following models: HP Elitebook 745 G3, 755 G3, 840 G3, 848 G3, 850 G3, ZBOOK 15U G3. Compatible with the following OEM part numbers: 800231-141, 800513-001, CS03046XL-PL, CS03XL, T7B32AA. About BTI: Battery Technology, Inc. (BTI) is a global manufacturer of notebook batteries and power supplies. Only Grade A cells of the highest quality from Japan and Korea, as well as UL-certified components, are used in production. BTI manufactures its products in California, Hong Kong, and China, and has a European central warehouse in the UK. An in-house research and development team brings an average of 75 new battery products to market each year. Engineers and technicians design and develop chips and boards themselves to produce them in their own SMT manufacturing. BTI has extensive expertise in lithium-ion and lithium-polymer batteries. The company thus manufactures mobile power products of the highest quality level, has a comprehensive portfolio for notebook A and B brands, offers a competitive pricing structure, and above-average availability. BTI provides an 18-month warranty on batteries and 24 months on power supplies. All products are CE certified, RoHS compliant, and carry the CE and WEEE logos.