Also, is there way to check the hybrid battery voltage? Want to make sure I put it back together properly. I cleaned all the contacts before re-assembling it. All the cables are properly connected. Could I have inverted the 2 orange cables? I didn't label them and can't remember which one was on top and which was on bottom. At the moment, the one with a red tape is on top and the one with an orange table is on bottom. Any harm is changing them around?