The3pcs JJRC H31 400mAh 3.7V Lipo Battery with 1 to 3 USB Charger RC Quadcopter Parts includes all you will need to power up your RC quadcopter、 ideal for replacement as well as backup uses. 400mAh large capacity Lipo batteries offer enough power for long flight time and let you fully enjoy RC fun without worrying about dying battery. High-grade cells are highly reliable and durable for long-lasting use. 1-to-3 USB charging cable adds more convenience. It surely is worth buying!                                    <p>Features</p>            <ul><li> Include all you will need to power up your RC quadcopter</li><li> Ideal for replacement as well as backup uses</li><li> 400mAh large capacity Lipo batteries enable long flight time</li><li> Let you fully enjoy RC fun without worrying about dying battery</li><li> High-grade cells are highly reliable and durable for long-lasting use</li><li> Include a 1-to-3 USB charging cable for added convenience   </li></ul>                                                            <p>Specifications</p>            <table width="100%" border="0" cellpadding="0" cellspacing="0"><tbody><tr><td width="131"> Suitable for</td><td width="365"> JJRC H31 </td></tr><tr><td width="131"> Dimensions</td><td width="365"> (1.10 x 0.79 x 0.32)" / (2.8 x 2 x 0.8)cm (L x W x H)</td></tr><tr><td width="131"> Color</td><td width="365"> Silver</td></tr><tr><td width="131"> Weight</td><td width="365"> 0.53oz / 15g   </td></tr></tbody> </table>                                                            <p>Package Includes</p>            <ul><li>3 x 400mAh Lipo Batteries</li><li>1 x 1 to 3 Charger</li></ul>