how does a sprocket "Hill Kit" affect range?

[Philosopher]

I've been wondering, if I install a "Hill Kit" - i.e. larger rear sprocket, how does this affect range on a 48v 1000w Lithium stand up scooter?
I know on flats my top speed ought to be a bit slower.... and I should have faster acceleration.... but how does it affect over all range? I can think it through and imagine it going either way.....
-Phil.

 

[Nobuo]

It maybe doesn't affect to much on the range, since once your speed is stable and does not accelerate, the amps would be less because less speed, less wind resistance.

Depends on how the speeds with each sprocket are changing, we would talking about.. increasing the range

 

[Philosopher]

Thanks, that's basically what I am thinking too.

Its kind of like brushless regenerative braking on a standing scooter.... its not likely to increase range more than maybe a one or two thousand feet, maybe....

 

[thepronghorn]

Well if the "hill kit" lowers your cruising speed such that you travel at a slower, more efficient rate, then it will increase your range. If you travel at the same rate you did before, the effect on your range will be small.

 

[Philosopher]

Well if the "hill kit" lowers your cruising speed such that you travel at a slower, more efficient rate, then it will increase your range. If you travel at the same rate you did before, the effect on your range will be small.

motor RPM would be maxed out/under full power most of the time under both scenarios. So I think as far as the batteries care, it is likely to be about the same in the end.

 

[thepronghorn]

Well if you used to cruise at 30 mph but your gearing change causes you to now cruise at 20 mph, you will now consume around half the power you used to while going 2/3 the speed, which means you should go 33% farther than you used to.