I wouldn't get those. I would get a decent 3000mah pack and a decent peak charger so that
if you go electric ever you have the good goodies lol.
If you want to order from towerhobbies all your stuff get this... It can charge your stick packs, mini packs, and receiver packs for your jato!
http://www3.towerhobbies.com/cgi-bin...?&I=LXCNK7&P=7

http://www3.towerhobbies.com/cgi-bin...?&I=LXHUJ9&P=0

DONT SKIMP OUT ON BATTERIES


If you can order from elsewhere..
Heres what I would suggest... and what I used to use when I had my nitro sport...

http://www3.towerhobbies.com/cgi-bin...?&I=LXHUJ9&P=0

this charger below can also charge at 1 amp for receiver packs 2 amps for minis 4 amps for sticks
http://dynamiterc.com/Products/Defau...ProdID=DYN4036

BUT I WOULD JUST DITCH THE EZSTART AND GET A PULL START OR ROTOSTART AND A DECENT GLOW IGNITOR BECAUSE REALLY WHO WOULD WANT TO WAIT FOR SOMETHING TO CHARGE TO GO NITRO I MEAN THATS ONE OF THE REASONS I WENT NITRO .. SO I WOULDNT HAVE TO CHARGE BATTERIES

lol sry for the capslol

hoped i helped!