Help! I've also got a problem charging my Futaba 6exa 2.4ghz TX with a pro peak prodigy charger. Now I know the transmitter has a diode in and some people strap them out (not a good idea) but when I emailed Ripmax about polyswitches they just suggested removing the battery. The last thing I want to do is keep removing the battery, does anyone know what rating polyswitch should be fitted because if Ripmax can't/won't help I'd do it it myself. Incidently one of the Futaba transmitters comes with a polyswitch fitted, but I can't remember which one. I suppose they may have saved a £1 not fitting them to the 6exa's