I built a small battery bank for a very specific project, which consisted of 4x 16ah lifepo4 batteries wired in parallel. I've had the bank for a while now but never had the ability to test capacity. I finally got a Renogy battery monitor and during the calibration realized that my batteries only seem to be holding about 2/3s of what they should be. Both discharging and charging calibrations only showed approximately 44ah of capacity, 20ah short of what should be a total of 64ah. Now during my wiring I had a small mishap and contacted the 2 terminals of one battery together. I tested the voltage (individual from the rest of the batteries) and it seems to be correct. Could the battery be trashed but still display 14v? Its the only explanation I could think of for being 20ah short of max capacity?