How many cells (volts) can Neu motors handle?

[hex-dj]

I will like to know about how many cells either LiPO or NiMH can a Neu motor handle say the 1500 series etc.???

[Darin Jordan]

6-32 NiMH... 2 - 10 Lipo... Depends on the size 1500 you are talking about...

[Dr. Jet]

Steve's motors are rated in watts. More voltage means you need to run fewer amps. It is a function of the motor's ability to store and dissipate heat. Heat is a form of energy. Watts are a form of energy. Watts also equals volts times amps.

Easy huh?

[hex-dj]

Thanks to Darin and Dr. Jet . Cool videos Darin.
I will like to know about how many cells/volts can a Neu 1512 2D 2600 Kv handle? Any help will be appreciated. I am planning on getting two of those with two Castle Hydras 120 ESCs (New versions) with some LiPOs. Since I ve already bought the charger for them.

[Ub Hauled]

Click on each motor that you need the info on:

http://www.flydma.com/catalog/index.php?cPath=1_2

[Dr. Jet]

One final caveat. Steve's (as well as most other) motors have a maximum allowable rpm as well. Use Kv (rpm/V) times voltage (cell count) to make certain you are within the manufacturer's tolerances. Use your particular setup to determine desired rpm at the prop and reverse-engineer the appropriate cell count.

Lastly, FE Calc is a good starting point for determining hull/motor/prop/voltage/amps. It is not 100% accurate, but it will get you "in the ballpark".

[Darin Jordan]

OR... you could just ask about a specific setup and see if anyone here has tried it or has a recommendation...

[hex-dj]

Ok. Darin .I want to setup my Sv 27 with a Neu 1512 2600 KV and a Hydra 120 updated ESC with 12 4/5th 2000 mah moded lightweight electryfly NiMH cells or 2s 2packs Lipos 6000 mah. Prop will be between the Octura x 640 or the x 440.
Same setup for my Black Jack 26 with the same propellers and both with two different DSM Radios. Also I was considering a twin Neu Project boat in the future.
Any advice will be greatly appreciated and thanks to Dr. Jet and Ub_Hauled.
???

[Darin Jordan]

Well... the motor will certainly handle that voltage, and the KV is OK for Nimh cells... On Lipos (assuming 4S), that KV is going to be a bit high for an oval Mono, but would be OK for straightline work... Figure approximately 15 to 16V under load * 2600KV ~= 39,000 to 41,600 RPM... That's screaming... The 12-cells will likely drop to 1.0V/cell and likely less... Figuring 12V under load, you'd have approximately 31,200RPM...

From experience using these smaller cells, I suspect that voltage drop across the cells under the loads this motor combo will impose will be dramatic, and will ceratainly not be enough weight savings to overcome the loss of RPM/Power... To further take away from the setup, I think you'll find that the SV27 hull NEEDS the additional weight to handle properely and stay on the water at speed... This setup will ceratainly get you above 40mph, and a light-weight SV27 going 40+ sounds like a handful to me...

You will be MUCH happier using the Lipo packs you mentioned... They will weigh less, and be much better suited for the amperage you are talking about here...

Is this for a SAW application?? Just curious, because runtime will also be REALLY low with that 12-cell setup... I would be suprised if the cells would hold up for more than a few runs... Again, the Lipos would shine in this application...

Either way, the motor will ceratainly handle the voltage and the power output of this setup...