... 260mAh 2.1.6mm,and with 1.6mm thin pcb 3.12 months warranty 4.OEM&ODM is available specifications of ultra-thin battery ... 2 Thin format ,light weight ,large area and flexibility in design .3 Easy customized,Enerty density ,high capacity ,4 super slim design ,ultra-thin ... cell ,or thin cell ,as thin as 0.4mm,suitable for smart security cards ...