August 9, 2011: This Ford Ranger EV has commuted reliably to work for 17 consecutive days with no problems. Our Goal: 30 consecutive days of commuting. On 8/9, I drove the EV another 9 miles. Afterwards, pack voltage was 150.6 V. State of Charge was ~ 60%. Ambient temperature at charge was 70 degrees F. Still just 6 BMS regulators are communicating.
Started Charge: Turned current to 26.0 Amps for 50 minutes to 171.0 V.
Turned down current to 20 Amps for 5 minutes to 170V.
Turned down current to 15 Amps for 6 minutes to 170V.
Turned down current to 10 Amps for 13 minutes to 171V.
At this time, Regulator #2 and #3 reached 14.50V first. This was the high voltage limit set. Green light blinking on MK3 and regulator started regulating.
Charge time was 1 hour and 14 minutes.
Final Voltage Warm 172V.
Final Voltage Cold > 8 hours later 155.6V (next morning).
NEXT: Still working to communicate with additional 5 BMS regulators so that 22 of 24 batteries are regulating. Also, bad regulator is still out for replacement.
August 23, 2012:
August 24, 2012
August 23, 2012: There have been approximately 20 charges and 250 more miles since my