Specifications Connection:Others Application:Electric Sweeper High-concerned chemical:None Bundle:Bundle 1 Battery Number:1-2 Size:18650 Replacement Battery:Yes Set Type:Batteries Only Type:Li-Ion Nominal Capacity:4000mAh/5200mAh/6800mAh/9800mAh/12800mAh Model Number:14.4V Brand Name:roza cinnie Origin:Mainland China Certification:CE,FCC,RoHS,KC Voltage: 14.4V Capacity: 4000mAh/5200mAh/6800mAh/9800mAh/12800mAh Compatible Models: Xiaomi Mijia Robot Vacuum 1C Battery Origin: China Packaging: 1 Battery Compatible with the following robot vacuums: Mijia Robot Vacuum 1C Xiaomi Mijia Robot Vacuum 1C (Stytj01zhm) Mijia Robot Vacuum 1C Xiaomi Mijia Robot Vacuum 1C Robot Vacuum Compatible Battery Models: SKV4073CN SKV4093GL P1904-4S1P-MM P1904-4S2P-MM high-quality battery. Built-in overcharge, overheating, over-discharge, and short-circuit protection. Each battery is individually packaged to prevent mechanical damage. Excellent value! Tips: 1. Close all unused apps. 2. Turn off vibration and reduce touch and screen timeouts. 3. Protect the battery from liquids and strong mechanical shock. 4. You can use a high-quality external battery to extend the life of your phone's battery. 5. Avoid overcharging and over-discharging. Stop charging once the battery is fully charged. 6. Avoid exposure to temperatures above 60C/140F. Keep the battery charge between 5% and 95%. 7. Do not short-circuit the battery. Direct contact between the positive (+) and negative (-) terminals of the battery by metal objects, such as coins or pen tips, can cause an accidental short circuit.