August 7, 2011: This Ford Ranger EV has commuted reliably to work for 15 consecutive days with no problems. Our Goal: 30 consecutive days of commuting. On 8/5 -8/6, I drove the EV another 10 miles. Afterwards, pack voltage was 152.0 V. State of Charge was 70%. Ambient temperature at charge was 80 degrees F. Of 11 regulators now installed, 6 BMS regulators are now communicating. One regulator did not start up correctly and was returned (no led initiation). Turned current to 26.8 Amps for 38 minutes to 170V. At this time, Regulator #2 reached 14.50V. High voltage limit was reached green light blinking on MK3 and regulator started regulating.
Turned down current to 18.6 Amps for 15 minutes to 170V.
Turned down current to 14.4 Amps for 8 minutes to 170V.
Turned down current to 10 Amps for 10 minutes to 170V.
Charge time was 1 hour and 11 minutes.
Final Voltage Warm 164V.
Final Voltage Cold > 8 hours later 155V (next morning).
NEXT: Communicated with additional 7 BMS regulators so that all 22 of 24 batteries are regulated and equalize during charge
Turned down current to 18.6 Amps for 15 minutes to 170V.
Turned down current to 14.4 Amps for 8 minutes to 170V.
Turned down current to 10 Amps for 10 minutes to 170V.
Charge time was 1 hour and 11 minutes.
Final Voltage Warm 164V.
Final Voltage Cold > 8 hours later 155V (next morning).
NEXT: Communicated with additional 7 BMS regulators so that all 22 of 24 batteries are regulated and equalize during charge
