If you want to keep the power of your mobile phone working all the time， you can take along with an extra battery for replacement. Choosing a high-capacity and high-performance li-ion battery can bring more convenience to you. This 3.7V 2200mAhLi-ion Battery for Sony BA700 features high capacity， stable performance and safe inner construction. Designed with overcharging protection system， it can stop charging automatically when the power is full. Lightweight and portable， this li-ion battery is easy to take along with you. It will never let you down. Just believe in it.                                    Features            This replacement battery has an integrated microchip to prevent overcharging and to extend battery life Best replacement battery with long-time standby and talk time Numerous times of safe charging 2200mAh capacity provides you with stable performanceLight weight， safe working and low impedanceCost-effective and environment-friendly Compatible with Sony BA700                                                             Specifications             Battery Type     Lithium Ion Battery    <br> Dimensions     (1.85 x 1.93 x 0.2)" / (4.7 x 4.9 x 0.5)cm (L x W x H)    <br> Voltage     3.7V    <br> Capacity     2200mAh    <br> Weight     0.91 oz / 26 g    <br> Compatible with     Sony BA700       <br>                                                             Package Includes            1 x Li-ion Battery<br>