Synergy Digital Vacuum Cleaner Battery, Works with Eufy RoboVac 11 Vacuum Cleaner, (Li-ion, 14.8V, 2600mAh) Ultra High Capacity, Compatible with Eufy 0 Battery - Walmart.com
Li-Ion-battery - 2200mAh (14.8V) for robotic vacuum cleaner home cleaner household robot Eufy Robovac 11 - Electropapa
14.4V 9800mAh Li ion Battery Compatible with Eufy RoboVac 11 11S 15C 15T 12 30 35C Conga 990 1090 1190 Deebot N79 DN622|Replacement Batteries| - AliExpress
Amazon.com: Replacement Battery for Eufy RoboVac 11 RoboVac 11s (2600mAh) : Health & Household