Compatible Model:
MCS-740 siren,MCS-720B

Compatible Battery Part Number:
103-304742 2XER18505M

Specifications:
Voltage:3.6V
Capacity: 16000mAh / 57.60Wh
Size: 51.00 x 37.00 x 21.50mm x 2 pcs
Weight：250.0g

Tips Before Purchase:
Please double confirm the compatible model and original battery part number before you purchase it.
If you are not sure,please feel free to send email to us with your battery details or pictures, we will give you free professional suggestion.
Your satisfaction is very important to us,if you have any questions,Please feel free to send eamil contact us,and we will reply within 24 hours.

Battery maintenance Tips:
please note, in the first charge before the battery will be used up, and then fully charged, so that the battery can achieve the best use effect.
please remember, only in 3-5 charge and discharge cycles, to achieve complete performance and life.
If you receive any product quality problems, please communicate with us, we will be in the first time for you to deal with, thank you!