1995 Chevy Camaro 3.4l 1995 Camaro

I have a 1995 chevy camaro with a 3.4L the problem. It was running fine I drove it to work and back home just fine it sat in the driveway for a few hours I got in and started it moved it away from my garage to pull our truck in the garage, went to move the camaro and it wont start! Turns over and has fuel and spark. I took the coil packs off and had them tested by a local mechanic he said there fine I took the ignition module in and it tested good took the batt in and it tested bad (had a bad cell) replaced the batt and the car started! Drove it around for a few weeks and now its doing the same thing had the batt checked again its good. Whats the deal? I have also noticed that the first time it did this and now also the voltage gauge in the car reads about 9.5 - 10.5 volts with the key in the on position car not running of course before these problems the voltage gauge would read normal 12.5 or so volts.




i have had the alt and batt replaced, also new cables and ends