MFS eGo-C batteries are universal with all eGo/eGo-T/eGo-C and 510/510-T products.

These batteries have the 5-button press safety feature.  Simply press the activation button 5 times quickly to disable the battery and keep it from firing unintentionally while stored.  Press the button 5 more times and it will become active again.

These batteries do not have the low battery life notification function like the Joyetech eGo-C batteries.  The LED beneath the button will not change colors to indicate when battery life is getting low.

1100mah Capacity is designed to provide long battery life between recharges. 

*3.7v Rechargeable battery for eGo/eGo-T .