Nastima Battery Compatible with Roomba

14.8 V 5000 mAh Li-Ion battery, 4 times longer than the original 3000 mAh replacement batteries. Works for up to 2 to 3 hours for Roomba 900 and 2.5 series, as well as 3.5 hours for Roomba 600-800 series. Offers nearly 1000 charge cycles.

Specifically designed for the Roomba 900 series and compatible with other 600-800 series: 605, 606, 610, 611, 614, 615, 616, 620, 630, 631, 632, 640, 645, 650, 651, 652, 655, 660, 665, 669, 670, 671, 675, 677, 681, 690, 692, 694, 699, 760, 761, 770, 772, 774, 775, 779, 780, 782, 790, 801, 805, 850, 860, 866, 870, 871, 877, 880, 890, 891, 895, 896, 960, 980, 981, 985. Suitable for use in the Roomba 500 series.

Patented battery balancing technology with built-in protection against overcharging, overcurrent, overvoltage, short circuits, and overheating.