Specifications Hign-concerned Chemical:None Nominal Capacity:12800MAH Size:68 x 36 x 36 (mm) Model Number:Battery Pack For ILIFE Robot Vacuum Cleaner Type:Li-Ion Brand Name:avtark Origin:Mainland China Certification:CE,RoHS,KC Certificate: Battery type: li-ion voltage: 14.4V/14.8 V capacity: 2600mAh 3500mAh 4000mAh 6800mAh 9800mAh 12800mAh, with perfect BMS system board as shown in the picture, and with high-end SEIKO chip Battery replacement for ILIFE A4 A4S A6 V7 V7s Pro , robot vacuum cleaner, not for V3s Pro V3 V3s V5s Pro V5 V5s This replacement ILIFE battery Compatible with equipment and chargers from the manufacturer. Without memory effect, charging at any time will have no effect on the battery. Color blueMaterial: PVC material Size: 70x38x38 mm Package content: 1* battery Only the contents of the previous package, other products are not included. Note: The light socket and different screens can make the color of the item in the image a little different from the real one. The allowed measurement error is /- 1-3 cm.