Choosing a durable and reliable battery for electronic cigarette is very important， because a good battery can prolong the lifespan of itself and atomizer， in the meanwhile， it can also make you more pleasant to enjoy electronic cigarette. These 2pcs SONY(VTC5) 18650 3.7V 30A/20C 2000mah Lithium Batteries for Flat Electronic Cigaretteare not only elegant in appearance， but also durable in use. Designed into large capacity， these lithium batteries are practical， energy-saving and environmentally friendly. They are guaranteed in quality and performance. You can rest assured to use them!.                                    Features             Adopt superb material to guarantee its quality and durability<br> High strength and tough texture is uneasy to distort<br> Bright and lustrous in appearance as special process<br> Feature stable and excellent performance <br> Large capacity is durable in use<br> It is compatible with auto flat type electronic cigarette <br>                                                            Specifications             Material     Lithium Battery    <br> Weight     2.82oz / 80g    <br> Color     Green    <br> Dimensions     (0.79 x 2.56)" / (2 x 6.5)cm (Dia. x H)    <br> Voltage     3.7V    <br> Capacity     2000mAh      <br>                                                             Package Includes            2 x Batteries<br>