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Replacement 4400mAh Lenovo/IBM ThinkPad T21 Battery

Capacity: 4400mAh,
Voltage: 10.8V
Cell Type: Li-Ion
Color: black
Dimension: 141.50x84.80x22.00mm
Net Weight: 314g

Replacement Lenovo/IBM ThinkPad T21 Battery (4400mAh) is specially designed for the original Lenovo/IBM ThinkPad T21 Laptop battery. Brand new Lenovo/IBM T21 Battery, with UL, CE, ISO9001:9002 certification, 1 year warranty.compatible with Lenovo/IBM 02K6620, Lenovo/IBM 02K6621, Lenovo/IBM 02K6626, Lenovo/IBM 02K6627, Lenovo/IBM 02K6649, Lenovo/IBM 02K7026

100% compatible with OEM ibm laptop battery
We are factory direct, you will get great products at low, low prices
All items built brand new with the highest quality standards, safety features and have one year warranty
30 day money back guarantee

Lenovo/IBM:02K6620,02K6621 02K6626,02K6627 02K6649,02K7025 02K7026,02K702 08K8026,FRU 02K7030,FRU 02K7032

A new battery comes in a discharged condition and must be charged before use. Upon initial use (or after a prolonged storage period) the battery may require three to four charge/discharge cycles before achieving maximum capacity.
When charging the battery for ibm thinkpad t21 for the first time the device may indicate that charging is complete after just 10 or 15 minutes. This is a normal phenomenon with rechargeable batteries. Remove the battery from the device, reinsert it and repeat the charging procedure. .
Another enemy of ibm laptop battery life is heat. Avoid heat, heat is the Lithium battery's enemy, the temperature in a car can easily rise 50F in a single hour, in some cases reaching 140F. Keep the ibm t21 battery cool. Avoid a hot car.
Dim your screen - Most laptops come with the ability to dim your laptop screen. Some even come with ways to modify CPU and cooling performance,this will also save on ibm thinkpad t21 battery drain.