This is a generic, equivalent one, 100% compatible. This 11.1V 63Wh Replacement battery is designed to compatible with Lenovo 42T4901 42T4862 42T4902 42T4863.

Specifications:
* Product Type: generic/equivalent
* Battery Voltage: 11.1V
* Battery Capacity: 63Wh /6 Cell
* Chemistry: Li-ion
* Color: black
* Recharge cycles: 500
* Operation time: Around 1.5-3hours
* Certification: CE FCC RoHS
* Condition: new, 1 Year Warranty!
* No memory effect, Over-charge protection, Over-discharge protection.
* Over-heat protection, Over-current protection, Short-circuit protection.

Compatible Part Numbers:
0A36306, 45N1023, 45N1022, 0A36307, 45N1027, 45N1026,
44+, 0A36281, 42T4867, 0A36282, 42T4875, 0A36283,
42T4876, 42T4861, 42T4901, 42T4862, 42T4902, 42T4863,
42Y4864, 42T4865, 45N1019, 42T4866, 0A36305,

Compatible with the following Lenovo notebook models:
ThinkPad X220 Series, ThinkPad X220i Series
ThinkPad X230 Series, ThinkPad X230i Series

NOTE：Please check the model number before you place order! Our compatible model list is not complete,if you can not find your laptop model in it please contact us.