watch chain wear it can suck up your battery.

[fooferdoggie]

I think I checked my chain on my Bosch powered bike at about 1000 miles (new bike I have only had it since late nov) checked it again at 1300 miles as the chain as came off the chain ring several times. man too much wear I sound have checked it a few weeks ago I guess. but I see a lot less battery drain. I wont know till the ride home but it looks like 2 to 3 miles more this morning then has been usual lately. usually when I get home i am on the last battery bar with 2 to 6 miles left on the estimate. but last night after the new chain when my battery was charging it was on the second bar. so it really makes a difference to have a non worn chain. I clean and lube the chain every week but the last couple weeks have had a lot of rain rides. Plus with my lack of energy I am in max assist most of the time though I have been able to drop it down on the flats.

 

[rich c]

I'm going to need voltage numbers on the battery vs bars, and a little more science to buy your theory. One revolution of the crank still moves the wheel the same amount, new or old chain.

 

[fooferdoggie]

I'm going to need voltage numbers on the battery vs bars, and a little more science to buy your theory. One revolution of the crank still moves the wheel the same amount, new or old chain.

bosch does not give you voltage. but I ride the same route pretty much every day and I average plus or minus 1 mph on the rides. the battery levels have been pretty consistent the last few weeks.

 

[indianajo]

bosch does not give you voltage.

That is why one buys a DVM from a source known to sell accurate meters. As farnell.com does, tenma. I check meter calibration with zener diodes. My tenma was good.
We took an organ appliance apart unnecessarily because my co-worker's Harbor Freight meter was lying to us. He has 30 years in the organ business, he paid the a price with his time for a garbage meter.
Wind can have a lot of influence on bicycle motor watthour demand. It has been quite windy here; sometimes in my face, sometimes behind me, sometimes crossways. I have no idea what wind does in Oregon.

 

[fooferdoggie]

That is why one buys a DVM from a source known to sell accurate meters. As farnell.com does, tenma. I check meter calibration with zener diodes. My tenma was good.
We took an organ appliance apart unnecessarily because my co-worker's Harbor Freight meter was lying to us. He has 30 years in the organ business, he paid the a price with his time for a garbage meter.

well I am sure i can live worry free without one (G) there are so many variables on a ride so there can be no exact science. but it seemed my battery had been lower when I was done at the end of the day for a bit.

 

[fooferdoggie]

so in my unscientific observation. usually my bike would show 3 miles left or so and be on 1 bar when I finished my daily commute. today I hit two bars a mile from home and showed 8 miles left. I had not noticed the bike not feeling as smooth as it did then I got it. back to a great ride again.

 

[Handlebars]

I'm going to need voltage numbers on the battery vs bars, and a little more science to buy your theory. One revolution of the crank still moves the wheel the same amount, new or old chain.

I'm not familiar with the Bosch systems. Is it possible that if the worn chain were to make the pedaling require more effort then he might be using higher levels of assist more often?

 

[fooferdoggie]

most like it is using more assistance since the drivetrain seems to be working harder. go to check the chain more often.

 

[spinnanz]

Id have thought a tight new chain would have more frictional loss than a sloppy worn one.