Specifications High-concerned chemical:None Nominal Capacity:12800mAh Voltage:14.4V Size:18650 Model Number:P1904-4S1P-MM Type:Li-Ion Brand Name:MYFKALA Origin:Mainland China Certification:CE Rated Voltage:14.4 V The main picture is for reference only. There are different SKU options. Please see clearly and select the corresponding picture window to order. Thank you. Battery Model:1C P1904-4S1P-MM Battery capacity: 5200mAh 6500mAh 9800mAh 12800mAh Voltage limit: 14.4V Compatible with: For Xiaomi Mijia Mi Vacuum Cleaner Wiping Dweilen Robot Battery G1 Battery Country of Origin: China Packaging specification: bulk package (bubble envelope bag) Important: New Lithium Ion batteries must be FULLY CHARGED and FULLY CHARGED 2 to 3 times before they COMPLETELY CONDITIONED. Remember that a new Lithium-Ion battery full performance and service life is only achieved after 2 to 3 complete charging and discharging cycles. After you go through 2 to 3 cycles, you will never stand your battery again! All call time and are approximate, depending on carrier network settings, signal strength, and features selected. Call time and Standby times will be lower in Analog mode as mentioned above. Dear customers and friend: When you buy my item. If something unusual happens: Do not receive the items, or inconsistent with the description, or other reasons you are not satisfied. Take neutral (or negative) feedback or open case easily, please feel free to write to contact me.We will do our best service to solve your problem. I believe good communication can solve everything. Thank you again. aeProduct. getSubject() We accept Alipay, West Union, TT. All major credit cards are accepted via secure payment processor ESCROW. Note: Light shooting and different display may cause the color of the items in the picture to be slightly different from the real object. The allowable error of measurement is+/- 1-3cm.