This is a 7.4 volt 1500mah LiPoly Receiver Pack. Its fits all current 1/8th scale buggies and truggies. This light weight pack provides longer run time and voltage than a standard Nimh receiver pack. Assembled in house and includes a cell balancing connector. This pack is also double shrink wrapeD to help protect the pack. YOU MUST USE A VOLTAGE REGULATOR ( LIKE OUR #BALVR1) TO PREVENT DAMAGE TO RECEIVERS AND SERVOS.