About US: We focus on designing and manufacturing varieties of Power Tool batteries with high quality and competitive price.We will do our best to serve you! Specification: Chemistry: Li-ion Brand: For Eufy / Ecovacs Model No.: TW4-11 Condition: Brand new Sub-Type: Replacement Battery Capacity: 4000mAh/4.0Ah 57.6Wh Voltage (V): 14.4V Certificate: CE PSE ROHS FCC Warranty: 5 Years + 60 DAYS Money Back Compatible with Ecovacs Deebot: N79, Deebot N79S, Deebot DN622, Deebot DN621, Eufy RoboVac 11, RoboVac 11S, RoboVac 11S MAX, RoboVac 15T, RoboVac 30, RoboVac 30C Max, RoboVac 15C, RoboVac 15C MAX, RoboVac 12, RoboVac 35C.
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