features:<br />- designed for use with the dji phantom 4 intelligent flight battery.<br />- led indicator shows battery charge.<br />- charging  and safe.<br />- the batteries will be charged in sequence according to their power levels・high to low.<br />- output current stability・ to prevent big currentthe battery off automatically.<br />- 3 batteries can be charge at same time.<br /><br />specifications:<br />fuel source: electric<br />input: 17.5v/7amax<br />color: white<br />size: 18.8*8.8*2.3cm/7.4*3.46*0.91&amp;quot;<br /><br />notice:<br />please connect the plug of the normal charger to the charging hub.<br /><br />package included:<br />1 x charging hub