Power Systems - Discussion

[herbalist]

Well, regarding the 8s or 10s setups.
If I am going to use larger lipo which mah > 4000 or even 500 , could that be ok?

[shogo]

Yes, that would be fine, you may need to shift some electronics around to get CG right. My 8s evolite 4270 balances just fine.

[GIR8]

Looking to get more 6s power and have 2 options 1 is the new align 650l or the Scorpion HK4020-1390.

I had thought about waiting for the scorpion 4025-1100 as I have seen on here that this should be a good 6s setup but I don't want to wait.

So out of the available align 650l and the 4020-1390 what one will work best at the moment I have the standard motor running as hard as it can and it is pretty poor power wise.

My 450 has more balls than the 600.

I am going to replace the blades and servo's aswell to get it flying like it should.

[GIR8]

Its OK lads I'm getting a 700N so that has the power sorted

So I can now wait on scorpion bringing out a decent 6s motor.

[longdollar]

Can anyone tell me if the stock ESC on TRex 600 will work for 8 cells?

thanks
Mark

[damyxz]

GIR8, I have tried the scorpion 4020-1390 on my trex 600 and it provided good power but the motor , battery and ESC got too hot to an almost thermal shut down and I only got 4 min flight times. I switched back to my z30 1100 for now. I am waiting for the 4025-1400 to come out and a guy who has been testing the prototype says it gives awesome power on 6S. I'll just wait if I were you.

[Gopedasia]

Damyxz - wat esc should we be running with the new 4025-1400? would the stock 75A be enough?

[Mr.Andersen]

Originally Posted by GIR8

Its OK lads I'm getting a 700N so that has the power sorted

So I can now wait on scorpion bringing out a decent 6s motor.

I just have to say it, there is stronger electric systems than a 90 size nitro engine.

[OTA]

Originally Posted by Mr.Andersen

I just have to say it, there is stronger electric systems than a 90 size nitro engine.

No doubt. To put some words about the power. I have a 12S T-Rex 600 and a 700N, and except when the batteries is new the 700N holds pretty well up the power levels i have on the 12S. However, when the packs is brand new, nothing can beat E power. Just too bad they are loosing some of the intital pop they had pretty quick.

And to compare any of the above mentioned setups to 6S, probably needless to say BIG difference.

No problems to power a 90size E heli with 6-7KW, but you need deep pockets $$$$ to keep it running as power levels like this stress packs and motors to the extreme and thus a short life cycle.

[naminator]

I have just upgraded my 600e CF after a year of steady flying from Align stock motor and speed control to a scorpion 890kv motor and a Phonix HV-85 and EVO25 5000 6 cell and a 2 cell hooked in series. Awsome power and nice balance of electronics, every thing was cool or just mildly warm.

[matt blaisdell]

This is the set up im currently working on.

Scorpion HK-4025-740 motor

Phoenix HV-85 Brushless Motor Speed Control

Spartan DS760 / jr 8900 servo

3x jr 8717 servos 8v

x2 OUTRAGE XP25 5S 25C in Series

Skookum SK360 Cyclic Gyro-Stabilizer Flybarless System

MIK4149 V-Bar T-Rex 600 Rotorhead flybarless.

i will be posting a video asap. will let everybody know how it flys

[eightythree]

Originally Posted by matt blaisdell

This is the set up im currently working on.

Scorpion HK-4025-740 motor

Phoenix HV-85 Brushless Motor Speed Control

Spartan DS760 / jr 8900 servo

3x jr 8717 servos 8v

x2 OUTRAGE XP25 5S 25C in Series

Skookum SK360 Cyclic Gyro-Stabilizer Flybarless System

MIK4149 V-Bar T-Rex 600 Rotorhead flybarless.

i will be posting a video asap. will let everybody know how it flys

now this sounds good!

i have a similar project i am working on...

Scorpion 1100kv, 85HV on 8s V-Plus XP 4000mah, SK360 w/ Mikado head conversion, 8717s @ 8v, 770 gyro/8900g.

ran this setup on my 6s packs with Align 100amp esc and it had GOBS of power!!! But, packs sufffered very warm temps even in cool outdoor temps.

its gunna rip on 8s!

[clt12981]

Had a E-Flite 400, but this is my first Helicopter. LOL
Chuck

Would someone move this to -show us your pics of t-rex 600. Thanks

[PyroM!KE]

I dont know why people think the esp stock electrics are only OK...Im flying FFF flips rolls loops With almost 20 cycles on my lipo's and havent seen any dramatic drop in performance..This is the hottest Ive seen my equipment so far...80 deg ambient temp..5.5min flight putting 2800-3800 back in..
650L motor 145
100amp esc 105
Zippy H 20-30c 5000mah 128

Right now Im happy with my stock esp electrics....

[02deuce]

Originally Posted by PyroM!KE

I dont know why people think the esp stock electrics are only OK...Im flying FFF flips rolls loops With almost 20 cycles on my lipo's and havent seen any dramatic drop in performance..This is the hottest Ive seen my equipment so far...80 deg ambient temp..5.5min flight putting 2800-3800 back in..
650L motor 145
100amp esc 105
Zippy H 20-30c 5000mah 128

Right now Im happy with my stock esp electrics....

Mike
Flying the same setup with the exception or the ECS. I felt the temps were to high which equates extra stress on the rest of the components. switched this weekend to the Scorpion 4025-1100 and picked up more power and a more cooler and efficient setup. Check out the FDR post for a graph of the motors performance and temps. https://www.helifreak.com/showthread.php?t=24113&page=7
Good bye 650L motor and the smell of burnt paint.

[eduairas]

Hello everybody,
I've been reading the post and I'd like to do some questions.
A few days ago I purchased the motor Scorpion HK-4025-1100kv.
My questions are:
Does milliamps 8s need to fly about 5 minutes?
3000 milliamps is enough?
And to make battery packs 8s can join 5s and 6s and 2s or 3s, or must always be two 4s?
Ah! HV DC is the drive.

[teshreve]

Originally Posted by eduairas

Does milliamps 8s need to fly about 5 minutes?
3000 milliamps is enough?
And to make battery packs 8s can join 5s and 6s and 2s or 3s, or must always be two 4s?
Ah! HV DC is the drive.

3000 is too small. 3700 should be the minimum consideration. Around 4000 is ideal, with perhaps 4500 on the high end.
A 4000 8S pack, depending on motor and setup, and with a head speed in the 2000 RPM range, you should get about 5 minutes of run time. With a hot setup, flying hard the entire run, and 2200 RPM, you will get about 4 minutes of flying time.
Joining multiple packs requires at least two very important steps: check the cell voltage of all 8 cells before a run. Be sure they are very similar. And then check them after the run. They should again be very similar. If you are seeing all the cells from one pack lower than all the cells from the other, consider not doing it again.
You can only put packs together that are identical in capacity (milliamps), vintage (age), and brand. If you end up running the packs individually in another heli, be sure to run them in a similar fashion and the same number of cycles.
The risks associated with running multiple packs are not trivial.

[eduairas]

Thanks.

[VDFS]

What Scorpion you indicate to run with 10s??And ESC??I like heli insane...

[niggo]

I plan to run a Scorpion 4025-890 with a Jive 80+HV and 10S Lipos (Hyperion Generation 3) in my 600. Which capacity would you choose for 4-5 minutes of 3D, if 3300 or 4000 is the choice?