Well for the rx I was trying to plan ahead as far as future planes go. Would like to upgrade it so I could use it in something else later. Oh and I also have a JR 9303 on its way which comes with a 1500Mah Nimh batt. I wonder if the suppied charger direct charges the battery or if it plugs into the Tx. Ug Who thought batts could be so difficult. Oh and I just learned about Mah and all today. Only had the plane for 4 days and was just charging and flyin.