Trex 500 DFC bettery

[simon_s]

I have ordered a 500 dfc kit. I have some blue turnigy 3300 packs, will these fit? If not what size packs would be best? Cheers

[GIXERMAN]

I would say a 3000 is a good size for a 500, a compromise between flight time and weight.

[bikerflier]

I have ordered a 500 dfc kit. I have some blue turnigy 3300 packs, will these fit? If not what size packs would be best? Cheers

They don't fit unless you mount very well forward but then the C of G is way forward.
You can move the mounting holes or cut a space in the top of the canopy, I've done both in the past.
Some of the Canomod canopies are more spacious and fit fine.
I use Turnigy blue 3000 and Optipower 3500, have also used Nanotech 3300. All of these are the same size as the Turnigy 3300 so you will need to alter your canopy or get a Canomod canopy.

[Bob H]

Yep, I'm using the Turigy blue 3000 20c batteries on mine. They just fit under the canopy but are a bit on the light side if you fit the ESC on the side like I did. I ended up putting 20gms in the nose to get the CoG back to something like normal.

[bikerflier]

Yep, I'm using the Turigy blue 3000 20c batteries on mine. They just fit under the canopy but are a bit on the light side if you fit the ESC on the side like I did. I ended up putting 20gms in the nose to get the CoG back to something like normal.

Just to clarify my earlier post to avoid confusion with this one.
I use the 40C 3000 blue Turnigy.
These are bigger and heavier than the 3000 20C blue Turnigy.
The 3000 40 C blue Turnigy, Turnigy Nanotech 3300 45C and Optipower 3500 35C are all similar sizes but bigger and heavier than the 20C 3000 blue Turnigy.
Take care with a tight fit as the lipo corners rub on the canopy and eventually can rub through the lipo casing damaging and eventually scrapping them, ask me how I know.
I put electrical tape on the corners of the lipo to protect them but prefer to open the top of the canopy out.

I would advise using higher than 20C lipos if you want to do anything more than sport flying.
I always go 35C or higher.

[Bob H]

Agreed. I'm only doing circuits, practising orientations and the odd loop every now and then so the 20c batteries are man enough for my needs atm.

[simon_s]

Thanks for the info. I have a few 3300s so might see how these fit under the canopy and then do some canopy trimming. It seems a shame to buy more packs if I can make these do. If it looks ridiculous than I will get some 3000 packs.

[adrianMS]

I used to run 2200 on my fb'd model& I'd use 2500-2600 packs on fbl models due to the higher head speed. Keep the heli light use lighter packs. As Colin Chapman said "add lightness for performance"

[MarkG_R1]

One of my mates uses Gens Ace 2700mah 35c's and theyre perfect for it imo, He gets 5 mins of sport flying out of them with plenty in reserve
And the heli has an awesome power to weight ratio

[simon_s]

I got my 500 finished over the weekend and was pleased to find the 3300 packs fit without any canopy modification. When mounted on the battery tray they sit about 10 mm from the top due to hitting the canopy if moved any higher up. I guess 3000 would be better in terms of saving a little bit of weight but as I have loads of 3300 packs for my 600 I will not be buying anymore just for the 500. I had 27% left after a 4 min flight.

Just thought I would post an update as it maybe useful to someone.

Simon

[Tim Procter]

Bloody hell my old mate Simon Scott. A class act back on the scene.

Nice to see you are flying again Simon.