Ok, I did the deed and shocked my battery packs back to service. I used the batteries on a golf cart for the power source, as the optimum voltage is 36 volts, and the golf cart has 6 - 6volt batteries (36 volts). The trick is to only hold the connection for a few seconds and check the battery pak voltage. You are looking for 1 - 1.5 volts (max) above the battery pak rated voltage. ANd all you have to do is burn out the "whiskers" (shorts between the plates, which does not take long with a high voltage and amperage source. On one of the battery paks, I held it for about 5 seconds and checked voltage, it was 19.1! I should have stopped there, but curiousity got the best of me, so I did it another few seconds, and voltage jumped to 20.3. OK, a little does a little bit of good, a lot does a lot of good, right? WRONG! I did it again, the voltage jumped to 21.1. Battery pak was still cool, so I tried it one more time, and just as I was fixing to pull the connection, one of the cells in the pak blew out. It sounded like a firecracker, and the pak shook a little, but that was it. No exterior damage to the battery case. I had to leave, but plan to open it tomorrow and check it out. Will probably buy another cell and solder it back in.