MegaSack DRAW - This year's winner is user - rgwb
We will be in touch
Essentially I've bought a 12v, 150w golf trolley motor off eBay, with the idea of building a little ride on RC car for littleP!
I've got bucket loads of radio equipment (spektrum), but most of my experience is with petrol.
My question is....
Can anyone recommend a speed controller to use with this motor, and I suppose a 12v lead acid battery (possibly car/motorbike)
Ta!
DrP
Lead Acid is sooooo 19th century, LiPo is where it's at these days.
150W / 12V. Power = Current * Voltage, so Current = Power/Voltage = 15A. Yikes!
Now, depending on whether the motor is brushed or brushless (I'm guessing the former), you'd want something capable of taking [i]at least[/i] that current, and that is suitable for the motor. Easy way to tell, how many wires coming out of the motor? Two = brushed, three = brushless.
I'd probably go for a 25A-35A, maybe something like this: http://www.sussex-model-centre.co.uk/shopexd.asp?id=27345
for brushed motor, or something like this: http://www.sussex-model-centre.co.uk/shopexd.asp?id=23892 for brushless
For battery I'd go 4S LiPo, something like this:
Kokam 4s 2400mah 30C
Type: 2400mAh 4S 14.8v
Continuous Discharge: 30C (72A)
Dimensions: H40 x W34 x L97mm
Weight: 260g
Balance plug: JST-EH
Charge rate: 2C
RRP £68.99 see our introductory Price below
SMC-RE-KC4S2400-30C
and then of course you'd need a suitable charger...