This is an E-flite 1S, 500mAh, 25C High Current LiPo Battery Pack with UMX Connector. This battery is a direct replacement for the Blade 180QX and 180QX HD quadcopters.
E-Flite EFL5001S25UM 1S 25C High Current LiPo Battery UMX Connector 3.7V/500mAh
SKU: EFLB5001S25UM
$11.99Price