Need a battery for the HP EliteBook 6930P, 6530B, 6535B, 6730B, and 6735B Notebook? BTI has you covered with our premium 6 cell 4000 mAh LiIon battery. Manufactured by BTI and built to our highest quality standards, this battery meets or exceeds the original manufacturer's specifications and comes with our industry leading 18 month warranty. BTI... True to the Original