This is by far the best Nitro field charger you can get. It will charger your RX, TX, and glow driver all at the same time and you can also charge your 6 cell packs (at 1,2, or 4 amps) for you started box on the TX side as well.
This is the nitro racers dream charger.
http://www.dynamiterc.com/Products/D...ProdID=DYN4059