HT TopHinon 14.4V 4500mAh NiMH replacement battery for iRobot Roomba 500 series and 600 series, 700 series, 800 series, and 900 series.

["High capacity Roomba replacement battery for longer runtime. Long lifespan and save your money.", "Easy to charge and connect. Battery compatible with all Roomba FloorVac models.", "Compatible with all iRobot Roomba 500, 600, 700, 800 vacuum cleaners, including iRobot Roomba 500, 501, 510, 520, 521, 525, 530, 531, 532, 533, 535, 536, 540, 545, 550, 551, 552, 555, 560, 562, 563, 570, 580, 581, 585, 590, 595, 600, 610, 611, 614, 618, 620, 625, 627, 630, 631, 650, 653, 654, 655, 660, 670, 700, 760, 761, 770, 780, 790, 800, 860, 870, 871, 880 and more.", "Built-in multiple protection devices against overcharging, over-discharging, overcurrent, short circuit, and internal overheating ensure safer use.", "12 months warranty. If you have any questions, please contact us anytime."]