Traveled only 40 miles and battery pack was weak driving home. Charged the pack and today tested each battery. See chart of numbers. Number 41 and number 44 in the center area were Zero volts with the other 45 rest voltages running from 3.34 to 3.68. I have only 2 spares left so will rotate them into the pack. Interesting note, the 2 that were bad were ones I had a mini-volt meter wired to. The opposite end of the wiring twards the meter was left open, so as to not cause a discharge. I would only connect the meter occasionally to get data on the pack charge.