General my first trex 450 sport build
- Thread starter yak1646
- Start date
D.O.G.
Goblin 380 Supporter
I wouldn't recommend it. Any vibration isn't good. Even the slight vibrations can start to loosen parts up.
(
Smoggie
Well-Known Member
There are easy ways and hard ways to do everything. I prefer the easy way, but i know from experience that some prefer to take the road less travelled.
Q. Can you fly with a bent main shaft?
A. Maybe, but it will vibrate horribly and probably knock out the gyro and/or cause other mechanical failures making another crash almost certain.
Q. Can I use a 4S battery on a 3S 3500kV motor?
A. Possibly but you would need use very low gearing, even with lower gearing it's quite likely you would burn out the motor and/or ESC. The ESC would have to be 4S capable too.
Q. Can i use a 4S battery on a 1800Kv 6S motor?
A. Yes but it would be way down on headspeed, high gearing would get some of the lost RPM back but still not a good option.
Q. Can i make a 4S battery out of two 2S batteries?
A. Yes if you make a series wiring harness, but the battery and wiring may to be too bulky to fit under the canopy. Also depends on what mAh size of battery you are talking about.
The easy option is just to use a straight main shaft and use the correct battery for the chosen motor.
Q. Can you fly with a bent main shaft?
A. Maybe, but it will vibrate horribly and probably knock out the gyro and/or cause other mechanical failures making another crash almost certain.
Q. Can I use a 4S battery on a 3S 3500kV motor?
A. Possibly but you would need use very low gearing, even with lower gearing it's quite likely you would burn out the motor and/or ESC. The ESC would have to be 4S capable too.
Q. Can i use a 4S battery on a 1800Kv 6S motor?
A. Yes but it would be way down on headspeed, high gearing would get some of the lost RPM back but still not a good option.
Q. Can i make a 4S battery out of two 2S batteries?
A. Yes if you make a series wiring harness, but the battery and wiring may to be too bulky to fit under the canopy. Also depends on what mAh size of battery you are talking about.
The easy option is just to use a straight main shaft and use the correct battery for the chosen motor.
Last edited:
trainrider06
Active Member
Those are 3s batteries, what happened to the 6S with the Dominator motor? Now its 4s? If your still running the same 6s motor those batteries won't work, unless your gonna run em in series, but your looking at where to put em then, and there isn't much room on a 450 heli to start with. If I were you I'd stay with a 3s motor, 3s battery and fix your main shaft. Then fly it.
D.O.G.
Goblin 380 Supporter
Ditto. I'm not sure what your trying to accomplish with the 450. That bird should fly wonderful as a 3 cell battery/motor. Like Rodney said, fix it and fly it and go have some fun.
KLA
Member
That is exactly what I was trying to say but in not so many ways.
Also agree 100% with Rodney and DOG.
What we are all trying to say is that you would benefit to just fix and run it the correct way as it was intended. You will end up saving money in the long run.
Smoggie
Well-Known Member
If you are using a 3S (approx 3500kV) motor then those batteries will work very well but personally i'd probably avoid the HV LiPo because not all ESCs or chargers are suitable for HV LiPos.. You can charge them to normal LiPo voltage but then you have wasted money on a fancy HV LiPo when you aren't getting the benefit from the 'HV' capability.
The Graphene batteries are supposed to be extremely good although a little bit heavy. They are overkill for what you need as a beginner though. For the same price you could pick up a couple of regular Turnigy 3S 2200mAh 40C which are more than adequate unless you fancy yourself as a 3D god.
The Graphene batteries are supposed to be extremely good although a little bit heavy. They are overkill for what you need as a beginner though. For the same price you could pick up a couple of regular Turnigy 3S 2200mAh 40C which are more than adequate unless you fancy yourself as a 3D god.
KLA
Member
+1, but actually, even the Graphene batteries aren't really worth the extra money. First of all, they are heavier than a ordinary Lipo battery, and when I was researching them (I was gonna buy a few of the Turnigy Graphene batteries ) I found a video of a guy doing a review of them and he methodically took one apart and there was not one piece of graphite substrate in it. There was thin black material in the battery but it was not graphite.
If I can find the video again, I'll post a link to it.
- - - Updated - - -
Here is the link to the video of the Graphene battery teardown:
Hobbyking Graphene Lipo Review and Teardown - YouTube
If I can find the video again, I'll post a link to it.
- - - Updated - - -
Here is the link to the video of the Graphene battery teardown:
Hobbyking Graphene Lipo Review and Teardown - YouTube
No i have 2 helicopters.one is a trex 450 pro this one needs a 3s for the 3500 kv.and the other heli is a trex 450 sport.this one needs a 6s for the 1800 kv .the one with with the bent shaft was the pro.these batteries that i posted are for the pro.sometimes i ask questions about my pro and sometimes my sport.I know i need a 6s for my dominator 1800 kv.
- - - Updated - - -
I was just explaining to trainrider.
- - - Updated - - -
I was just explaining to trainrider.
D.O.G.
Goblin 380 Supporter
Hey yak, for the 6s/1800kv i use this one Gens Ace LIPO Battery 1200mah 22.2V 40c and for the 3s/3500kv I use this one EcoPower "Electron" 3S LiPo 30C Battery Pack (11.1V/2200mAh) [ECP-5106] | Airplanes - AMain Performance Hobbies I know there's cheaper one's but I try not to order from HK. Just tossing it out their.