[Nas]

Originally Posted by Rootz

Righto. One thing we have to get straight: Whatever the battery supplies - via the speedo, it depends what the motor is asking for.

So! Let's say you're balls-out full throttle. The motor will need more power to get up to the speed you're asking for if the car's heavy or the gearing's longer ( lower ). It'll be pulling more current out of the batteries. Conversely, if the car's really light or the gearings high the motor will find it easier to get up to speed and it'll pull less current out of the batteries.

Now! You've got 4500mAh 30C batteries, which means they should be pretty happy supplying 4.5 x 30 = 135 Amperes and the voltage shouldn't sag too much. Let's say less than 15%. So! the amount of power you can supply with your battery is around 135 x ( 4 x 4.2) x 0.85 = 1928 Watts, which is over 2 horsepower.

If you really tax your motor, it'll drag the battery voltage down, which will mean that the battery needs to supply more current to get the same amount of power. It's (just) possible that your batteries are so sluggish that it'll take the current over the limit for the RX8 but it's really not very likely. I think the RX8 has a maximum current limit setting. Use that if you're worried but I'd be surprised if it ever cuts in in a buggy.

Cheerz!

Rootz

Great help matey cheers