Originally posted by forty6
I have been thinking of doing a 9-cell, but 10 is even better. Do you have any pix?
4 more cells above 6 you see in pic.
This mod does require radio to be opened up and have ribs removed from one side in battery compartment. Then pack is hard soldered onto little circuit board where battery and charging jack is wired to. Can't take credit for this mod, other guys at the track came up with it, and copied
Blue batteries are Orion's version of GP2300AA. Far as charging, you can use any TX charger plug through charging jack on radio (except JR, it's revered polarity) and use TB35 (make sure your PS goes to 14v) or, use cheap TX wall charger, and leave it on there for 2 days!
and here is GP's new 2500
part # 250AAHC