Features:-3.0Ah large capacity, full charge takes 100-180 minutes, the specific time varies depending on the model and age of the machine, most take 2 hours.-Compatible with Ecovacs Deebot N79, Deebot N79S, Deebot DN622, Eufy RoboVac 11, RoboVac 11S, RoboVac 11S MAX, RoboVac 12, RoboVac 15C, RoboVac 15C MAX, RoboVac 15T, 0, RoboVac 30 MAX, RoboVac 35C. -High quality grade A lithium battery with built-in protection circuit, with overcharge, over-current, overheat and short circuit protection to prevent possible damage. It will not heat up when charging, protecting the safety of you and the machine.-Easy to install, installation only takes 2 minutes, just remove the two screws on the bottom, take out the old battery, and insert the new one.-Under normal c.