Skip to main content

Big ride to the causeway

Yesterday I finally got a chance to do a "proper" bike trip on my e-bike.  And I finally got to establish a good, new baseline for my battery pack.

Name: causeway trip
Trip time: 02:05:50
TripDistance: 34.1 mi
Average speed: 16.3 mi/h
Maximum speed: 35 mi/h
Climbed altitude: 1432 ft

The trip started out with a familiar jaunt through the network of South Burlington rec. trails.  From there I rode up to the UVM campus, out to Main St. and hit downtown.  For fun and people watching, I walked my bike up Church St.  Although I probably looked a little odd (perhaps like a Burlington bike cop) I am constantly amazed at the ability to bring something like an e-bike right into the middle of a pedestrian mall, walk through it, hop on on the other side, and continue on. Try to do that with a car, motorcycle, scooter or even a moped!   

Rode down to the waterfront to get a quick look at the water level.  Definitely getting up there.  Breakwaters  (restaurant/bar) is flooded, and there are extra ramps around the boat loading areas at the boathouse.  I remembered that they had done a big overhaul on the Colchester Causeway (which had been beaten to a pulp during Irene after being brutalized by flooding of spring 2011).  I decided I wanted to get a look at it before it was wrecked again (ha).  I took the bike path up.  It was kind of fun, but a little annoying as I felt like I was in a bit of a hurry.  I am always very respectful of pedestrians and regular ped-power bikes (don't want to ruin it for everybody) so there was a lot of braking and excusing.  

The work they did on the causeway is phenomenal.  Not only is it perfectly smooth and flat (not a single pothole along the whole thing), but they also managed to widen it quite a bit.  No more almost wiping out oncoming traffic or when passing people.  There were many places where I was able to hold it almost wide open (25-30 mph) for great distances.  Of course as soon as I saw anyone I would slow it way down.  The last thing we need is someone getting hurt or even nervous, as that will be the end of "the Wild West" for e-bikes around here.  I'm sure it's only a matter of time anyway (as e-bike prices come down, more idiots will own them).

I was keeping an eye on my battery pack min. voltage (essentially estimating when the battery would die by observing how much voltage sag vs. throttle/load there was).   The pack seemed very strong all the way there. After I rode as far as I dared (which might have been a little too far), I turned around and started the long haul back to Shelburne.  I was easily 14-15 miles away.   This time I took main roads all the way home.  North Avenue was a real treat as there was very little traffic, and I was able to roll full speed (while being as gentle as I could on the battery), and not have to stop for traffic lights or turning cars.  In about 20 minutes, I had made it all the way back to Shelburne Rd, when, without any warning, the pack cut out.  Just "plink" (no sound effect), no power, followed by the foreboding thought of having to pedal 80 lbs of bike 4 miles home. It really wasn't so bad though.  I needed the work out anyway (whoever thought that owning an electric bike meant you get no exercise is sorely mistaken).  I got home in about 20 minutes, taking it slow.

So in retrospect, the battery almost certainly cutout due to cell (#1) under voltage.  The pack voltage minimum was 46 volts, which is fairly high, so it's doubtful that the entire pack was dead when cut out happened.  Of course I should have expected this, as #1 is the damaged cell.  In all, I am pretty content knowing my battery pack can still take me 34+ miles after all it's been through.  

AH: 16.06
WH: 800.8
Vmin: 46.93
Vquiescent: 51.17


Popular posts from this blog

Reaper, Linux, and the Behringer X-Air - Complete Studio Solution, Part 1

Introduction and Rationale This is part one of a major effort to document my experiences with recreating my home studio, entirely using Linux.  Without getting into too many of the specifics, a few months ago I decided that I was unhappy with Windows' shenanigans - to the point that I was ready to make a serious attempt to leave it behind.  For most in this situation, the obvious choice is to switch to Mac OS.  With its proven track record, support, and options for multimedia production, it is naturally the first alternative to consider if your goal is to simply use something other than Windows. For me the choice was not so simple. I despise Mac OS and, in general, the goals and philosophies put forth by Apple in an effort to ostensibly provide users with an "easy" working environment.  It does not help that I have also failed to find any aspect of the Mac OS UI intuitive, but I realize that this is a subjective matter. With my IT background and user-control* favori

Timbaland rips off a Demoscene artist

I knew this day would come. The new Timbaland/Nelly Furtado song "Do It" uses a song made in 2000 by Finnish demoscene artist "Tempest" (Janne Suni). It's a 4 channel .mod (the ripoff is from a playback using the C64 SID soundchip). The song was hosted on's servers (the main repository for all everyones demos and tracked music, etc.). As you might expect, no permission or royalties were paid to Tempest. Just to clarify, we're not talking about some kind of coincidence here. There is no question that this track was used to create the song "Do It". In an interview, Timbaland tries to downplay it, saying things like "he sampled it from a video game". (This track was not written for a video game- it was actually written for the 2000 demoscene music competition, in which it won 1st place). Regardless, he basically claims he has no legal obligations because it's just like all the other pop artists that sample other m

The Hellscape that is Google’s Web in 2023

Alternate title: "were we better off in 2015 2007?" Time now for another anti-capitalist, “get off my lawn” posting for all the folks out there who won’t see it anyway, because they don’t read real blogs for the reasons specified in this very article. The web has existed for 30 years now. One would think our ability to access information on it would keep getting better. However, I watch as web search is instead devolving every year, to the point where people are giving up and hoping for the next thing.  While this sounds dire, this kind of behavioral change has historical precedent. Remember running your own mail or web server, or better yet, having a phone that you might actually answer calls to, even if you don’t recognize the caller’s number?  Yes, those ideas are gone too. It's all thanks to the uncontrolled thirst for advertising. Let’s walk through the experience of someone doing a simple Google search for “how to control poison ivy”.  The desired outcome would be