Amazon.com: Replacement Battery for ILIFE V3s Pro V5s Pro V50 V8s X750, fits Part Number 18650B4-4S1P-AGX-2,14.4V Li-ion 2600mAh/37.44Wh : Industrial & Scientific
HQRP Battery for Ilife V3s Pro V5s Pro V8s V50 X750 Smart Robot Vacuum Cleaner | eBay
ILIFE V8 Plus: Best Budget Robot Vacuum Cleaner - Mopping demo | Battery Life - 2 hours - YouTube