This IBM PS/1 Note Models 2141-NB2, 2618 Replacement Battery Pack is 100% compatable with the P170AE-PS1 IBM PS/1 Note Models 2141-NB2, 2618 Replacement Battery Pack. Our batteries and accessories are made with high quality parts and are guaranteed to meet or exceed the original equipment manufacturers specifications at a reduced price. All batteries are tested for 100% quality control assurance. This IBM PS/1 Note Models 2141-NB2, 2618 Replacement Battery Pack includes a warranty to guarantee that it has no manufacturing defects.