SPMA9603 : SPEkTRUM 7.4v rechargeable Li-ION transmitter battery and Wall Charger (worldwide) package. Battery is 2000mAh capacity rating. Battery pack dimensions: approximately 3" x 2.75" x 0.87".  Fits in SPEkTRUM DX6, DX7G2, and several others. Replaces SPMA9602, SPMA9603, SPMB2000LITXCS. This is a factory OEM product. Wall Charger includes adapter prong attachments so battery can be charged from most any properly grounded wall outlet worldwide. Check your Transmitter manual to confirm your proper battery model replacement #.