Is 7.8 wh/ mile good on an ebike?

Zambam

100 kW
Joined
Dec 17, 2021
Messages
1,023
Location
NYC
I charged the 48 V battery on my TSDZ2 mid drive Raleigh Mtn Tour Seneca last night with a Kilawatt power monitor and measured 0.290 Kwh consumed. The bike had done 37 miles from full charge @ 54.4 V, dropping to 46.5 V after 37 miles (per KT-LCD3 display). That works out to 7.8 wh/ mile (a little lower than that if charger efficiency is taken into account).

The bike has 26 x 1.5 street tires, weighs 40 lbs with the TSDZ2. I weigh 115 lbs. Mostly stop and go grocery shopping and joy riding. Not flat like Florida around here but with up/ down hills on city streets. Speeds anywhere between 8 to 18 mph.

Question:
1. Is 7.8 wh/ mile good, ok or poor for an ebike?

2. Is there a more accurate way to measure wh/ mile?
 
Question:
1. Is 7.8 wh/ mile good, ok or poor for an ebike?

2. Is there a more accurate way to measure wh/ mile?
That’s pretty good, and right in line for that motor under mixed riding (you can do a forum search and see). Too many variables to compare though. The Cycle Analyst provides a direct readout of your consumption. I never look at it while riding though (don’t want to be like a new Prius driver that is obsessed by the consumption display and drives accordingly lol). I may see 9 or 10 on one ride and 20 the next.
 
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