6.4 powerstroke has no electrical power
 

Okay. I deleted my truck and installed a punch it performance tuner. Everything has been running great. I changed my performance level Friday night and left my key in the on position by accident. Saturday batteries were dead so I put them on charge. I went to start the truck saturday night and have no electrical power at all. Batteries read good with meter. They are only 2 years old. Please help!

Never mind. Batteries open under load. New batteries fixed it