Lithium Li-Ion Replacement Battery for iRobot Scooba 450 Roomba 500,600,700,800 900 960 980Series, High Capacity 4400mAh,SUPER LONG-LIFE(800 CYCLE TIMES) by CyberTech,UL&CE Certified Battery Component &#10004;4400 Ah LI-ION, SUPER LONG-LIFE!!! 1 X Rechargeable Extended Long Lasting Lithium Ion Batteries 7.4V 4400mAh &#10004;BEST PERFORMANCE BATTERY for iRobot Roomba and Scooba! Longer operating time and battery life! 4400 mAH vs original battery's 3200 mAH (80~110 min vs. 50~70 min running time), Replacement for iRobot Roomba 500, 600, 700, 800 Series, Patented battery balancing technology, Built-in over protection circuits provide safety and reliability, Battery cell packs assembly in Taiwan, quality guaranteed! &#10004;LIFE SAVER! MONEY SAVER!! Save money by using a lithium battery (800 cycle times, 1 Lithium = 4 NiMH/NiCd batteries), 4x longer Life than iRobot batteries and all aftermarket replacement batteries &#10004;NO MEMORY EFFECT+ LOW RATE OF SELF-DISCHARGE, ULTIMATE PROTECTION CIRCUIT DESIGN!!! Advancessd Li-Ion technology provides improved energy density. Built-in over-charge, over-discharge, over-voltage, over-current, and over-temperature protection. No memory effect. Low rate of self-discharge (1% per month) &#10004;RISK-FREE GUARANTEE! You will be 100% satisfied or we'll give you your money back. PLUS18 MONTHS WARRANTY (vs. Neato 6 months warranty offer). Visit Cyber-tech.com for more product information.