Li-ion is 3.9V per cell hot off the charger and 3.7V nominal. 20 Cells so I think you will be seeing 78V when fully charged. Cells can go down to 2.7V which is 54V. I think the BMS will be set a little higher then this for the sake of battery longevity but the CA is just a last line of defence and as such should be set slightly below the BMS in my opinion.I cant give direct figures on the stock Bomber as i have always used Lipos but I believe the above is accurate
29.5 miles (from my Garmin GPS)
The CA reads 31.5 miles so the wheel size in the CA is wrong.
Emailed Stealth and waiting for an answer.
Paul G
#2 Hook my Amp-Probe up and see if the CA is recording the correct amount as I ride.
#3 Or I can buy a new recording Amp-Probe I was looking at..
The CA's voltage can easily be verified by using an inexpensive multimeter to measure battery voltage.
Cheers, Abraham
Sent from my iPad
On May 22, 2011, at 8:04 PM, Jérôme Daoust <eyesto...@gmail.com> wrote:
> On May 22, 5:40 pm, Kepler <eboost.ass...@gmail.com> wrote:
>> It sounds like the shunt calibration could be a little off in the CA.
>> This is very easy to adjust in advanced settings.
>> Ideally you need to have a meter to measure the actual and compare it
>> against the CA.
>> Another way to get it close is to lift the back wheel off the ground
>> and run it up to a set speed of say 25mph. Record the Watts.
>
> I wonder about recording Watts and adjusting 2 bike's wattage to match
> based on consumption for a back wheel off theground at a given speed.
> I'm not very familiar with the CA, but assume that wattage displayed
> should only be derived data based on measurements of current (Amps)
> and Voltage, so the only error should be with the evaluation of
> current and voltage and not with how they are multiplied to indicate
> voltage. Question would then be: What is the wrong measurement:
> Current or Voltage? This may be answered by comparing what is the
> battery's voltage after a fresh charge (assuming the battery is in
> good working order).
> John_W hinted the freshly-charged voltage should be about 88 V:
> http://groups.google.com/group/stealth-electric-bikes/msg/5d4512dfd2bfb886
>
> What is the voltage you read Paul after charging your battery?
Sunday, May 29, 2011
THE LOTTERY RIDE (QUICK SPIN 15+ MPH)
8:30 AM, Pelham Parkway & White Plains Road, Bronx, 67 miles