The rechargeable lithium battery is not only durable and practical， but also cost-effective and environmental-friendly. If you intend to buy a new lithium battery for your electronic device， these 4pcs TangsFire Rechargeable 3.7V 10440 600mAh Lithium Batteries are your firstand best choice. These lithium batteries are made of superb material to ensure their quality and lifespan.Theyare not only elegant in appearance， but also durable in use. Designed into large capacity， these lithium batteries are practical， energy-saving and environmentally friendly. The recycling charge can be up to 1000 times， very helpful and harmless.                                    Features             Adopt superb material to guarantee its quality and durability<br> High strength and tough texture is uneasy to distort<br> Rechargeable style make them practical and environmental-friendly<br> Feature stable and excellent performance <br> Large capacity is durable in use<br> It is compatible with many electronic devices <br>                                                            Specifications             Material     Lithium Battery    <br> Weight     1.27oz / 36g    <br> Color     Yellow    <br> Dimensions     (0.39 x 1.97)" / (1 x 5)cm (Dia. x H)    <br> Voltage     3.7V    <br> Capacity     600mAh      <br>                                                             Package Includes            4 x Batteries<br>