This is a generic, equivalent one, 100% compatible! 10.80V 5200mAh replacement/equivalent Rechargeable Li-ion battery is 100% compatible with Lenovo FRU 42T4548 42T5262 42T5264 41U3198 42T5265, Brand new, one year warranty!

Replaces the following Lenovo battery part numbers:
41U3198, 43R2499, 42T4533, 42T5265, 42T4530, 42T4532, 42T4548, 42T4644, 42T4645, 42T4677, 42T4678, 42T4743, 42T4745, 42T4771, 42T5262, 42T5264

Compatible with the following Lenovo Laptop models:
For Lenovo ThinkPad T61p Series(14.1" widescreen),
For Lenovo ThinkPad T61u Series(14.1" widescreen)

For Lenovo ThinkPad R400 Series
ThinkPad R400 7443

For Lenovo ThinkPad R61 Series(14.1" widescreen)
ThinkPad R61 7732, ThinkPad R61 7733, ThinkPad R61 7734,
ThinkPad R61 7735, ThinkPad R61 7736, ThinkPad R61 7737,
ThinkPad R61 7738, ThinkPad R61 7742, ThinkPad R61 7743,
ThinkPad R61 7744, ThinkPad R61 7751, ThinkPad R61 7753,
ThinkPad R61 7754, ThinkPad R61 7755

For Lenovo ThinkPad R61i Series(14.1" widescreen)
ThinkPad R61i 7732, ThinkPad R61i 7742

For Lenovo ThinkPad T400 Series
ThinkPad T400 2764, ThinkPad T400 7417

For Lenovo ThinkPad T61 Series(14.1" widescreen)
ThinkPad T61 1959, ThinkPad T61 6377, ThinkPad T61 6378,
ThinkPad T61 6379, ThinkPad T61 6480, ThinkPad T61 6481,
ThinkPad T61 7658, ThinkPad T61 7659, ThinkPad T61 7660,
ThinkPad T61 7661, ThinkPad T61 7662, ThinkPad T61 7663,
ThinkPad T61 7664, ThinkPad T61 7665

Specifications:
◆ Product type: generic/equivalent
◆ Voltage: 10.80V (Compatible with 11.1V)
◆ Capacity: 5200mAh
◆ Dimension: 224.20 x 65.00 x 20.35 mm
◆ Battery Composition: Li-ion
◆ Condition: brand new, 1 year warranty!
◆ No memory effect, Over-charge protection, Short-circuit protection.

Notice:
If your battery part NO. or your machine model NO. are not listed in the description, our battery may still fit your laptop. Therefore, please feel free to contact us to confirm the compatibility.