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540 motors & 8.4volts?

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Hello

I now have a 8.4volt nimh battery pack, and I want to use it with a Tamiya BZ 23t brushed motor.

(I have a 12t limit ESC, which can handle 9.6volts, so this should be ok).

But, just want to know if the BZ motor is ok to run off a 8.4volt battery??.

I an using this set up in a pretty much stock TT01, with full ball bearings, and metal prop shaft.

On Carpet indoors.

I have given it a go already, and it certainly shifts. But the motor did get very hot after only a short period of time (less than 5mins perhaps).

I don't wanna melt anything! - is this set up ok?

Kind regards

Ross

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If the motor is getting hot, stick a smaller pinion and or a larger spur gear.

The motor will take the extra voltage, but with the above modifications.

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+1 on the gearing

Don't forget as well running indoors (racing I assume) you will be accelerating harder and braking harder (from increased power and top end speed), so the motor will naturally work harder and generate more heat anyway. I run my Jugg2 from an 11.1V LiPo on silver cans with the standard gearing for a 7.2, and if I'm just blasting around at full throttle most of the time with no hard braking the motors hardly get warm.

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Hello guys

Thank you for your replies.

Ah Yes! - gearing - i will look into this...

And sounds like 8.4v is fine to use.

Thank you

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Beside changing to smaller pinion / bigger spur, motor would benefit from some cooling, preferably heatsink with fan

I used a 380 size motor on 2S lipo, stock no heatsink would most likely burn in 5 minutes, with heatsink and fan it's still alive and well after 45 minutes

Also watch esc temperature

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