upping the voltage

[jordi555]

I run a Sidewinder a 7T puller, DX3R, CCBec and 7995TG, 9.6v NiMh.

Question, can I add another cell and run at 10.8v or am I going to start frying stuff??

[2JSC]

The CC Sidewinder is good up to 12 cell Nimh.

[jordi555]

So I could run at 12 volts?

[2JSC]

12cell nimh is 14.4 volts. You can run a 3s Lipo if you wanted. But you asked about 10.9v which is only 9cell nimh.

[jordi555]

Apologies, I use 2/3A cells at 1.2v each, currently using 8no. so 9.6v
If I use 10 cells obviously 12v. Just wondered if this would be ok?

[bob1961]

i was using a 10 cell brick pack of 2/3 at 12.0 volts, but dropped down to 9.6 volts 8 cells to lower weight up high on the front axle the way i have my packs made...............bob

....

[engineerjoe]

with the red wire mod and a CC BEC I'm running 4s A123 (13.2V) on my sidewinder WAAAHOOO, hello wheelspeed!!!

[JeremyH]

Originally Posted by jordi555

Apologies, I use 2/3A cells at 1.2v each, currently using 8no. so 9.6v
If I use 10 cells obviously 12v. Just wondered if this would be ok?

Here's the spec sheet for your ESC:
http://www.castlecreations.com/products/sidewinder.html
You can run 12 cells NiMH or 3S lipo....and those specs are listed for a 4600 motor....

[jordi555]

Thanks for the help, so when you talk about NiMh cells, you mean each cell is 1.2 volts.

[JeremyH]

Yes, each cell is 1.2V and if you run 12, then you would be at (12 x 1.2V = ) 14.4 Volts max.

[jordi555]

Hey,

I've just built up a 10 cell pack, charged it up and I am ready to have a go.

Just a thought though, the overall voltage is now 14.4v, I was expecting to see around 12v, these cells must obviously hold more than 1.2v each. (marked up as 1.2v)

Therefore a 12 cell pack would be too much?.

(Still considering the switch to lipo)

[bigtim]

The spec sheet from Castle says 12 nimh for a 4600 brushless motor. You are using a brushed motor. So you should be just fine with your 10 cell nihm pack. I run a revolver black brusless motor from holmes hobbies with a 3 cell lipo with no issuses.

[jordi555]

yes, I figured it would be ok, just couldnt understand where the 14.4v came from.

[jordi555]

When I said I was good to go on the charging front, thought I was.
Just checked still charging after 180mins at 0.5 amps, now up to 15v!!!

whats going on?

[jordi555]

Fully charged now and dropped to 14.3v.

Popped them in my rig..........woah!........ that 7t has really come to life!!

[bigtim]

Bump up the amps on the charging. When I was running an 8 cell nimh I was charging at 2 amps with no problem.

[jordi555]

prefer to charge them slowly, nimh dont like heat when theyre charging