Roomba Battery life: how long does the battery last? - Vacuumtester
iRobot Original Li-ion Battery 3300mAh/14.4V Roomba 680, 690, 890 and 900 Series
Amazon.com: NASTIMA 14.8V 5000mAh Lithium ion Replacement Battery Compatible with iRobot Roomba 960/895/890/860/695/680/690/675/640/614, Replace The Original 1800mAh Lithium ion Battery : Home & Kitchen
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How To Remove Battery | Roomba® 700 series | iRobot® - YouTube