How long does the 600 mah transmitter battery last on a full charge on the futaba 6EX 2.4 radio?

http://www3.towerhobbies.com/cgi-bin...1&I=LXPZT8&P=3

hulio

it holds about 7-8 flights of about 10-12 minuts each with turn on and off in between, when it shows 9.8 v i'm going to recharge.

Alex

Battery life will depend on a variety of conditions. I use the 3-flight rule: I can safely get 3 flights in per day - occasionally, I'll even get a fourth flight in. Then I pack up and go home.

According to the transmitter specifications, it draws 170 milliamperes from the battery. That is the current going from the battery into the transmitter. The battery capacity is 600 milliampere-hour. That means it will supply 600 milliamperes for one hour. If less current is drawn from the battery, it will last longer. If you are drawing 170 milliamperes from the battery, it will last (600/170) 3 1/2 hours. You can leave yourself some margin and fly for two hours without recharging. Dan.

I can comfortably get four flights before I recharge.

It will easily run for 3 hours. The following is what I got on mine. I turned the transmitter on and left it on continiously for 3 hours and 10 minutes with the following readings:
Start10 volts, after 25 minutes 9.4 volts, after an hour and 15 minutes 9.3 volts, after 2 hours and 15 minutes 9.2 volts, after 2 hours and 45 minutes 9.1 volts, after 3 hours 8.9 volts. Note that I had complete control of the plane throughout the test. I did turn the receiver off between tests as the reciever battery will not last nearly as long as it is drawing far more current when the servos are being exercised. It is perfectly safe to fly down to 8.8 volts but I stopped at 8.9 volts. The alarm sounded after 3 hours and 15 minutes with the voltage at 8.5 volts. Note that at 9.2 volts, I still had a third of the charge left in the battery. This is with the NiCad battery that came with the unit. I doubt if NiMh will perform quite as well but should come close. If you are charging when voltage falls to 9.8 volts, you are only using a few percent of the energy you have in the battery and unnecessarily limiting yourself.

If it doesn't last long enough for you (it didn't for me) you can get a 2000mah battery from all-battery.com for $15. That will last you more than all day.

I agree with Mike (minn flyer) !

When in doubt Re- Charge. JMO,

Bob