ORIGINAL: kruzin55
Thanks for the info and advice. I thought the power expander was a good idea so that I had the dual batteries and the voltage regulator. Also, I did not think I could put the gas/oil in the car. I would sure hate to have to spend money to repair the Dodge Hemi.
What if the regulator fails? This is more likely to happen than feeding the Rx directly with an A123 battery (if your Rx can handle 6.6 volts).
http://www.electrodynam.com/rc/EDNano/index.shtml
Your Dodge will love the extra oil
Keep in mind that one drop of oil is enough to pollute 12 square meters/130 sq ft of surface water. Just my $.02
Edit:
http://electrodynam.com/store/product224.html
5x Hitec 7955TG, 1x HS-5245MG throttle and 1x HS-81 choke. Usage is 29mA per minute, so with a 2300mah A123 good for max 79 minutes flight time. I always recharge after 5 12 minute flights.
Look on Hobby City (RCU deletes links to this site???) for:
IMAX Power Supply 100~240v 5A and Turnigy Accucel-6 50W 5A Balancer/Charger
And with a 12-volt battery you can charge at the field.
http://tweakshop.net/DL50-install/6.jpg