NEW LINE OF ELITE LAPTOP BATTERIES: NinjaBatt is proud to present its new line of batteries NinjaBatt PRO - Our new replacement batteries use Premium battery cells and are made of the highest-quality materials for an overall life expectancy of over a 1000 charge cycles. Bring your laptop back to life. BUILT TO LAST WITH OVER A 1000 CHARGE CYCLES(!): Thats right. Forget about all the promising low cost laptop batteries out there. Our new 4 cell Li-ion battery is rated at 41Wh/2600mAh/14.8V. Combined with its A grade Premium cells and smart control chip, you can expect it out-perform, out-gun and out-last any battery out there!