This is the Joye eGo-T ( Tank ) Manual button Battery. Can work well on Joye eGo, Joye eGo-T,  Allowing you to have control over Atomizer activation .. 

Please note: this battery come with 5 click on/off function and botton protector cover

Battery Life: 300 Charges

Charging time: 2-3hours

Battery Power: 650mhA

Warranty period: 6month