Attention! Please carefully check the last photo as these stated laptop models contain 2 pin batteries which can have two differently shaped/ sized connectors don't be misled by the part number - Even if your model matches one given on the title you need to be certain that the connector is identical to this or it may not fit due to revisions of the same models
Compatible Model: Lenovo ThinkPad T400, T400S, T410, T410S, T420, T420S, T430, T430S, X1, X30, X31, X32, X200, X220, X220, X220T, X201I, T410, T420, W510, L430, W700, X230, X301, R60, S230U, X220I, X230U, X240, X240I, W701, W701DS, T500, T510, T520, R400, R500 W500 W510 W520 W530, A20, A20P, A20M, A21
Edge E220S E420S E430 E431 E440 E540 E545
E450 E455 E555 E460 E465 E560 E565 E470 E475 E570 E575 E480 E485 E580 E585 E490 E490S E495 E590 E595
L412 L512 L420 L520 L440 L540 L450 L460 L560 L470 L570 L380 L480 L580 Yoga L390
T410S T430U T431S T440 T440S T450 T450S T460 T460S T460P T470 T470S T470P 25 T480 T480S T490 T490S T495 T495S T550 T560 T570 T580 T590
X230S X240S X260 X270 X280 X380 X390 X395
Technical details:

Socket type: 2pin version

Cable length: 5cm

Nominal voltage: 3V

Nominal capacity: 220mAh

Recommended continuous drain: 0.2mA

Recommended pulse drain: 16mA

Diameter: 20.0mm

Height: 3.20mm

Weight: 3.0g

Low self-discharge rate and stable discharge voltage

Wide working temperature range: -20 to 60°C

Will fix the following error codes:
0250: systems battery error
0251: System CMOS checksum bad
0260: System Timer error
0270: Real-Time Clock Error
Please check all the specs and ensure this battery meets your devices' needs
It may be suitable for many other models
Please also note that these models sometimes also requi