As with most Thinkpads, there are several battery vendors for T410, and the HMM list several different FRUs.
Battery pack, Li-ion (4 cell
) 25: 42T4763, 42T4765
Battery pack, Li-ion (6 cell
) 55+: 42T4791, 42T4793, 42T4795, 42T4797
Battery pack, Li-ion (9 cell
) 55++: 42T4799, 42T4801, 42T4803
Furthermore, apparently some FRUs have been changed as part of a firmware update: 42T4797 --> 42T4911, 42T4803 --> 42T4912
However, unlike with past models, the HMM does not list who the manufacturer of each FRU is. This is where you (T410 owners) come into the picture. If you can spare a few minutes of the time, please use Lenovo's Power Manager to check the following information on your battery and post it here:Manufacturer nameFRU part numberDesign capacityDesign voltage
If possible, also:Full charge capacityCycle count
Your help will be very much appreciated.