Is your Ecovacs Deebot N8, N8+, or Pro Plus not holding a charge like it used to? Running for 10 minutes and then dying? Time for a new battery. This is a brand new replacement battery from Elaso, designed for the Deebot N8 series and also compatible with the Deebot 900. Model number S11-LI-144-2600. It's a lithium-ion pack that should bring your robot vacuum back to life, giving you full cleaning runs again. Easy to install—just pop off the cover, swap out the old one, and you're good. Elaso gives it a 1-year warranty. Get your Deebot back to cleaning the whole house without stopping to recharge every 5 minutes. Good replacement for OEM.