Here is some detail on the lcd that has to be done to make it work.

Here is the spot welder control board and lcd being brought up for the first time. Very satisfying. Next the fet board has to be tested as there are reports of new fets being bad. My first suspicion was that the builder’s were not ESD savvy and popped them with some static electricity.

The Spot welder hardware being mounted to it’s platform that will slide into it’s chassis when done. Aluminum box tubing was used to heatsink the bridge rectifier and the discharge resistors. The fans will hit them with good velocity to keep them cool, but yet not impede the airflow too much to the rest of the system.

Rear panel was milled on my CNC for the fans, fuse holder, and power cord that were used in the original Tektronix chassis, but relocated.

11jan2011 22648 miles, recharged pack, +4.98kwh, 11.88kwh total, no o/c time. Refilled bearing reservoir with Mobile1.
10jan2011 Flattened entire pack. Jumpered redtop cells.
10jan2011 drove deep discharge, -6.90kwh.

Watered entire pack, 22627 miles, many cells very low. 3.7 gallons H20.

Set charger to 2 minutes of constant voltage time.

10jan2011 22627 miles, watered entire pack. Many cells very low. 3.7 gallons H20.

09jan2011 Drove, deep discharge, -6.93kwh, recharged 2.77kwh, 9.70kwh total. Pack was very stiff during charging and driving.
09jan2011 Recharged flattened pack, +5.88kwh, 11.18kwh total. 20 cells appeared shorted. After 30 minutes of charging they all appeared normal. Cells are marked with a red circle on their cap.
08jan2011 Flattened entire pack, -5.30kwh, 18.9ah, 19.1miles, 11:35pm.

07jan2011 Recharge.+2.94kwh, 8.73kwh total.
06jan2011 Drove deep discharge,-5.79kwh

06jan2011 Recharge, +2.18kwh, 6.53kwh total.
05jan2011 Drove deep discharge, -4.35kwh

27dec2010 Added 10 used and tested nicad cells to pack. 251 total. Set charge voltage to 400vdc.

16dec2010 +3.86kwh (8.3ah) on recharge. 11.19kwh (35.7ah) total recharge.

15dec2010 +4.55kwh on recharge. 11.59kwh total recharge.

15dec2010 -7.33kwh (27.4ah) @ 30.1 miles, 244.3wh/mi, dry, sunny, warm. Errands, highway and city driving. Heater. SJ loop.

14dec2010 -7.04kwh @ 27.7 miles, 254wh/mi, raining, cold, dark, no no heater. SJ loop.

241 cells installed. 2 shorted green top cells removed. 24 Redtops watered. 3 clear tops watered.

27nov2010 -4.55kwh, 20.3 miles, 243wh/mi

26nov2010 -4.13kwh, 15.55 miles, 265wh/mi

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