... .CE,RoHs,ISO9001-2008. 2.18650 cell/battery 3.Weight:90g 4.Dimension:37mm ... for electronic device 3.7V 4400mAh 18650 li ion battery pack specification Model No.TLH-520AhCell ... anti-overload3.Compose Type : Injection Technology to make battery more stable4.Certifications : CE,UL,FCC, RoHS,ISO90015 ... upon request We could provide the li-ion battery 18650 with the capacity of 1800mah to 2600mah. ...