Tenergy&nbsp;CR2 3V Lithium Battery Non-Rechargeable&nbsp;PTC Protected High Performance&nbsp;CR2 Batteries&nbsp;for Flashlight, Digital Cameras, Toys, Alarm Systems (Not For Arlo Camera) 10PCS These are NON-rechargeable battery cells and should N<span class="a-text-bold">OT b</span>e recharged. These are C<span class="a-text-bold">R2 </span>(s<span class="a-text-italic">ize)</span> Lithium batteries. They are N<span class="a-text-bold">OT </span>the same as C<span class="a-text-bold">R123A </span>(s<span class="a-text-italic">ize)</span> batteries andC<span class="a-text-bold">ANNOT </span>be used interchangeably with CR123A batteries. Dimension:  <ul class="a-unordered-list a-vertical"> Diameter 15.1 mm Height: 26.7 mm Voltage: 3.0V Nominal Capacity: 750mAh Self-discharge Rate: &lt; 1% per Year Battery Weight: 11g Operating Temperature -40 ~ 60 oC PTC High Current Discharge Protection implemented