Anyone know the algorithm for remaining distance?

[alan_sh]

So, wife and I both went out today - did 30 miles. Both batteries fully charged. At the end, hers said there were 24 miles remaining, mine said 18. When I looked at the percentage battery left, hers was 45% and mine was 44%. The voltages were the same to within a tenth of a volt.

So, does anyone know how these things work? How does it calculate remaining distance? On the ride, I used more of level 1 (economy) than her, but was pedalling harder, until the end (which was a 2 mile hill) when I think I used more assistance than her.

I'm just curious to know.

Oh, the bikes are Decathlon Rockrider EST 520 with Brose motors.

Alan

 

[Mikerb]

If the brand does not disclose the basis for range predictions there is no way to find out. I don't think any of them are anything more than a rough guide because there are far too many variables that could impact on range. It is also often the case that delivery of power from a battery is not linear.

 

[alan_sh]

I thought that might be the case.

Cheers

Alan

 

[Darren]

The range will change dependant on wich mode you are currently in - just in case you weren't aware.

 

[alan_sh]

Ah there's a thought. I bet I was in '2' when I looked and my wife probably in '1'.

Thanks

Alan

 

[Mikerb]

Regardless all range predictions are little more than a wet finger in the air!!