Cresh's Commuter

Cresh said:
I started off my commute in yesterday looking at the battery voltage after unplugging the charger. 52.4v. Hmmm, thats not right, it should be somewhere around 58.4v. oh well, off to work.

3.5 AH later, I lost power and look down and the CA is showing 47v! oh no, the charger must have malfunctioned or there is a loose charge wire. I'll need to re-terminate the connectors and check the connection on both ends.

I ended up soaked in sweat at work. I guess my coworkers are used to it because they didn't say anything. This was worse than normal though, I had a huge sweat stain on the back of pants all day...

[youtube]ALGIl1CkvBY[/youtube]

*cough* sometimes I don't have the energy to pass joggers either, and my battery is JUUUST fine. :) Hope it works out for you.
 
I've been looking on the CA for remaining battery but haven't found it. How do you determine remaining battery life? I can track my AH usage (if I remember to hit reset after charging). But I'd like to have some type of estimate if possible of the remaining life.

Glad the issue was just a simple connector problem!
 
I determine my 'miles till empty' by looking at the watts consumed and current Wh/mile.

Of course that assumes no changes in speed or terrain, resistance etc... it helps to know your route and plan accordingly.

I get about 900Wh with the LiMNC triangle battery and 25 Wh/mile when capping power to 800W.

That translates to roughly 36 miles @ 25mph average.

If I want to be more efficient, I can flip a switch and cap the power to 400W and at that I get 45 miles @ 20mph average.

I have the MAC 10T though which leans more towards torque than speed. When going up average hills, it consumes 800W and will do 20mph.
(If a hill consumes more power than that or goes slower, I help by pedaling. Don't want to burn up the motor or battery.)

Of course it never hurts to arrive at your destination with plenty of battery left, makes for a happy battery.
 
I have cell_man's triangle battery bag and an 8T motor. If I keep the switch set to I (which on mine limits speed not watts to about 20 mph), I can get over 42 miles on relatively flat terrain (or even with a couple of decent hills). I do assist some as it just feels weird if I don't peddle...

What I haven't done is run the battery all the way down... but I do seem to be getting around 2.3 - 2.5 miles per AH, which would imply about 45+ miles total. Just not certain how fast the battery will both sag and run down at the very end. Good experiment for this weekend!
 
A little off topic for this thread but since everyone on it seems to be on the me setup... I posted this also in the battery technology section.

My charger failed today and I'm looking for a backup to work with my 48v triangle battery from cell_man. Need it fast!

Any recommendations?

Thx.
 
Thanks. I took it apart and looks like there is a weakly soldered wire coming from the power cord receptacle. I'm going to attempt to fix it. First thing, buy a soldering iron... ;)
 
Cresh said:
Supertux1 said:
If I want to be more efficient, I can flip a switch and cap the power to 400W

How do you do that? I have a 3 speed switch but it doesn't limit wattage. I wish it would!

I have the CAv3 and i've wired the switch up to the 'aux pot' functionality.

The switch is actually just a 3 way resistive divider that tells the CAv3 to cap whatever setting, power in my case, to 33%, 66%, or %100 of max.
 
Very nice bike infrastructure.

Question: How many minutes does it take you to cover the 16 miles commute on your ebike? How many minutes on your car?
 
Cresh, is the hardtail fine for <35mph commuting? Im building my first ride, love a cool looking full suspension, but it will add greatly to my budget.
 
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