Apple M8244 replacement laptop battery by Amstron is made from the highest quality cells and parts. Amstron provides reliable, high performance replacement batteries for your Apple laptops. The LMA-16 is designed to be 100% manufacturer compatible with Apple OEM part numbers 616-0115, A1012, M6091, M8244, M8511, M8858 and more. This precision-engineered battery is designed for use in the Apple PowerBook G4 Titanium. • Chemistry: Li-Ion • Rating: 14.4V 4400mAh • Dimensions: 4.55 x 4.29 x 0.74 • 100% original manufacturer compatible • Guaranteed to meet or exceed original specification • Full 1 year warranty