Originally Posted by Dave H

That charger appears to be for a 4 cell radio like the DX3R or DX3S.

Aren’t the DX2 and DX3 8 cell transmitters?

Other than that detail as far as I know JR and Spektrum transmitter chargers are interchangeable, center pin negative. Perhaps try this one, but ask at whichever shop you buy from to be sure, or maybe somebody here can confirm:

http://jrradios.com/Products/Default...ProdID=JRPC223