Note: Please check and match the part number or the image with your existing laptop batteryThe 6-cell ThinkPad battery 75 is a replacement/spare battery for Lenovo B Series- B590 ,ThinkPad E Series – E430 ,E430c, E431 ,E435 ,E440 ,E445 ,E530 ,E530c ,E531, E535 ,E540 ,E545 ,Tablet- Tablet systems. The battery is rechargeable and can be used as replacement or as a convenient spare for several popular ThinkPad systems. This battery is powered by Lithium-Ion technology and has a safeguard chip which authenticates with Lenovo systems. The battery lasts on average 48 watt hours* and utilizes over-discharge protection to ensure a secure flow of power. *Many factors affect battery life. These include: screen brightness, battery conditioning, features, applications, power management and other customer preferences. Lithium-ion technology 6 cell system battery Over-discharge protection to prolong the life of the battery. Battery energy (Watt-hours): 48Wh Battery Safeguard chip authenticates with Lenovo systemsUse it anywhere you go. Get optimum performance at every stage of your life.Compatible Part number:0A3631145N105045N105245N1054 Fit ModelsThinkpad B590Thinkpad E430Thinkpad E430cThinkpad E431Thinkpad E435Thinkpad E440Thinkpad E445Thinkpad E530Thinkpad E530cThinkpad E531Thinkpad E535Thinkpad E540Thinkpad E545
