button-top Battery</br>Batteries can be charged over 500 times</br>No PCB protected battery</br>battery size:10.0*44.0mm</br>battery works for power bank/ torch/ flashlight/ streamlight/GPS etc</br></br>Product Description</br></br><b> Specification</b><p> <br>Model:Lithium ion 10440 350mAh button top <br>Charging cut-off voltage:4.2v <br>Discharging cut-off voltage:3.0 v<br></br><br/>http://www.amazon.com/gp/product/B010ABNW5S