RE: Cen matrix reciver battery ?
The Matrix RTR does not come with a reciever battery pack (it does however come with a harness)
That holds AA batteries.
If you were to buy a diorect fit aftermarket- you would need a two prong connecting system... or just buy a airtronics or hitec on/off switch and you would use the more traditional z-type connector or jplug (3 prong)
Hope this info is helpful!
Thanks for choosing CEN Racing!