The IBM 46H4206 battery by Amstron provides reliable performance in your IBM laptops. This precision-engineered Lithium-Ion battery is designed for use in the IBM ThinkPad 560 Series of notebooks. The LIB-20 is designed to replace OEM part numbers: 46H4206, 46H4144, and 46H3969. • Chemistry: Li-Ion • Rating: 10.8V 2500mAh • Memory Effect: None • 100% original manufacturer compatible • Guaranteed to meet or exceed original specifications • Warranty: 1 Year