Top-selling Coin & Button Cell include:
Parts Express Sub C NiCd Cell Battery with Tabs 1500mAh
IEC ACC2050 Battery CR2032 3V used for PC CMOS as well as other small electronic devices
IEC ACC82003 Portable Battery - Power Bank USB 3500mAh Orange
IEC ACC82005 Portable Battery - Power Bank USB 3500mAh Green