I agree with the other replies unless your roads are so bumpy that any speed over 20 mph your head is in danger of hitting the roof then a turned off computer riding in your passenger seat isn't going to take any damage.
One thing I'd suggest strongly is that you put surge suppressors on all your computers and carry a small surge suppressor for the laptops power supply. Surges can cause cumulative damage and I've seen power supplies that appear to be working fine with the power bricks light burning green and yet it has failed. I've seen damaged power supplies that depending on the internal design are putting out a voltage well above or below the devices rated safe range. You can even get power supplies that have failed and are putting out pulses or AC instead of a nominal constant DC.
I doubt this has anything to do with your problems, but I can't emphasize enough the need for surge suppressors on all electronics plugged into the mains. I live at the end of a power line and we use surge suppressors on literally everything At a rough guess I figure on average most of our electronics last at least half again as long as our neighbor's electronics.
I can't think how many times someone has brought me a computer and said"The lights brightened for a moment and the computer made a popping sound and shut down." In every case they hadn't bothered to use a surge suppressor.
A surge suppressor isn't going to stop a direct hit from a lightning strike, but it will help a lot for all those other "bright moments" even those that don't instantly kill a unprotected computer. Surges can add up on the electronics especially the power supply electronics and lead to an early failure.
HMelton
God Bless
One thing I'd suggest strongly is that you put surge suppressors on all your computers and carry a small surge suppressor for the laptops power supply. Surges can cause cumulative damage and I've seen power supplies that appear to be working fine with the power bricks light burning green and yet it has failed. I've seen damaged power supplies that depending on the internal design are putting out a voltage well above or below the devices rated safe range. You can even get power supplies that have failed and are putting out pulses or AC instead of a nominal constant DC.
I doubt this has anything to do with your problems, but I can't emphasize enough the need for surge suppressors on all electronics plugged into the mains. I live at the end of a power line and we use surge suppressors on literally everything At a rough guess I figure on average most of our electronics last at least half again as long as our neighbor's electronics.
I can't think how many times someone has brought me a computer and said"The lights brightened for a moment and the computer made a popping sound and shut down." In every case they hadn't bothered to use a surge suppressor.
A surge suppressor isn't going to stop a direct hit from a lightning strike, but it will help a lot for all those other "bright moments" even those that don't instantly kill a unprotected computer. Surges can add up on the electronics especially the power supply electronics and lead to an early failure.
HMelton
God Bless