Li-Polymer/Li-Fe 2-6 Cell (standard voltage 7.4V-25.2V using divided voltage connector) ** Receiver battery 1.2V-12V DC (Not battery type limit, but need external power 7.4V-25.2V, use JST connector) ** Balance voltage setting range (lower limit): 2.0V-3.9V (pre-setting value 3.3 V) ** Discharge voltage setting range (lower limit): 3.0V-4.2V (pre-setting value 3.9V) ** Item size: 9.3 x 6 x 1.7cm ** Item weight: 70g ** Color: Black or Blue **