Originally Posted by
Rocketman_
The best receiver battery for me is Li-Ion. A123 is a great advancement in battery technology but not for me. Once I found out that there was no field instrument that could accurately keep track of A123 battery voltage, I abandoned the idea of using them in my models.
My RC experience goes way back to "ancient" times and I have never had to charge a battery at the field and don't want to start now. I just don't feel like doing the A123 routine of charging, flying, recording flights, charging to see how much you put back in (as if that is accurate), etc., etc., and continuing to do that over the lifetime of the battery to see if it changes.
Li-Ion and regulators have been totally reliable over the years in my 1.60 glow to 36cc gas powered 3D and sport aerobatic models. I switched from 2600 mAh to Panasonic 3400 mAh Li-Ion when I started connecting the ignition unit to the receiver. These 18650 size cells can be purchased two for $17.99 from Amazon and easily soldered to make a 7.4V 2-cell flight pack.
http://www.amazon.com/NCR18650B-3400.../dp/B00DHXY72O
Troybuiltmodels sells a 3400mAh 7.4V 2-cell Li Ion pack all made up with 3 leads and connectors for $34.95.
http://www.troybuiltmodels.com/items...LIION3400.html
The maximum current rating for the panasonic is 6.4 A. The Sony VTC4' are rated at 40 amps.
I have made up a 4 cell pack for flying an A/C of mine. They do fly it but they do get hot.