Mike, I read the AMA article that was in April issue and it appears that the big issue with the 2.4 was with old batteries being used on the 2.4 RXs.

What I understand is the 4.8v is going to brown out at 3.8 which is below the cutoff for the 2.4.  That being said, I have ran nothing but 4.8 600mah in my one trainer plane that has 4 standard Futaba S3004 servos and I get 6 flights on my plane and can probably get at least 2 more flights before needing to change the battery.

On my T-28, I have 4 Spektrum DS821s and 2 Futaba S3004s.  I run a 4.8v 1100mah and I get 5 flights on it.  Again I could probably get 1 to 2 more flights on it without worry.

I have a vol****ch on both of them and have not seen any sudden drops and have just touched the first yellow light by the time I am at my fifth flight.

I have also heard from others that have switched to the 5 cell packs that they lose a flight sometimes two because of switching over to the them.

My thought for this issue was on my T-28, is to Y-harness another 4.8v 1100mah and be done with it.  I can't see any reason why I should switch to 5 cells because of some "older fliers" as outlined in the article didn't use newer batteries.

I have been flying with the same 4.8v 1100 mah for two years now.  I cycle my batteries and charge them like I should and have had absolutely no problem at all.

Joe

Even with a good battery, I have found that the wiring and switches can kill the voltage.  I am trying to get a set up working in a VK N 17.  Due to the size of the battery box, I need to use a 4.8v square pack.  I bought a 2300mah nmhi pack and it was still acting like the battery was dead. Even right after a full charge.  I am using standard, or mini analog servos, so no real drain.

I have found two issues. 1. I was using a small switch due to space issues and this appears to be cutting the voltage.  2. The sockets in the battery pack connector are sort of loose and not making good strong connection with the pins in the connecting wires.  I found this by wiggling the wire while connected to a volt meter.  The voltage jumped all over the place.

Fortunately, I found all this on the ground.

Moral:  With 2.4 make darn sure EVERY connection, wire and switch are up to the task.

Dale

Hi Everyone,

   Like most folks I been around in the last couple years have change to 2.4 on most planes they fly regularly and especially $$$$ like Warbirds and large flip/flop planes.

  What I learned is go with the 6 volts system and everything should be OK, but I will keep my 72's for our home field and my Sunday flyer's , so far I've spent a couple thousand $$ and that enough.

   Charlie

PS: I'm moving (motorhome) up to Mac tomorrow to start rebuilding the B-29, John and Mac figures a week (24/7) to get the structure back together and then Mac will reinstall everything that not hurt, which looks pretty good so far, all the wires ect in fuselage will be replaced.

Good on you Charlie.  Hope to see the B-29 back up soon.

Dale