02-23-2016, 03:24 AM
http://slickdeals.net/f/8520339-knox-120...ommentsBox
On page 2 someone posts this comment: Considering most modern cars warn specifically against jumpstarting from another car due to the possibility of cooking the car's computer control unit, everyone should have a portable jumpstarter these days.
http://www.mynrma.com.au/get-invo...rn-car.htm
I have jump started several neighbors vehicles, 2 that were only 3 year old. Neither has mentioned any issues to me. I have never heard of a jumpstart harming a car's computer. After researching it further, my pre heavily electronic car method of jumping a car is the correct one.
This link I found doesn't say not to jump but to make sure the donor car is off before attaching the cables. http://www.familyhandyman.com/automotive...0/view-all
You probably keep jumper cables in your vehicle so you can solicit a jump if your battery dies or offer a jump to a fellow driver. But jumping batteries on cars built after 2000 might not be so smart. That's because newer vehicles contain as many as a dozen computers and even more digital devices. Jump-starting with cables connected to a running vehicle can create a voltage surge large enough to fry expensive computers in either vehicle. And, since most of these components communicate on a shared data bus, surge damage to just one computer or digital device (even a radio) can disable the entire data bus, preventing the vehicle from starting and costing hundreds to diagnose and repair. Think about that: You can cause expensive damage to your own car simply by providing a jump to someone else.
When you connect jumper cables from a running vehicle to a dead battery, the alternator in the running vehicle instantly puts out maximum charging voltage. That can create a voltage spike of up to 15.5 volts in both vehicles. And it's that voltage spike that can fry computers and digital devices.
One way to eliminate the voltage spike is to leave the engine off in the donor car. That will prevent frying computers in the donor car. But if the car won't start right up, don't grind away to the point that you end up with dead batteries in both cars!
On page 2 someone posts this comment: Considering most modern cars warn specifically against jumpstarting from another car due to the possibility of cooking the car's computer control unit, everyone should have a portable jumpstarter these days.
http://www.mynrma.com.au/get-invo...rn-car.htm
I have jump started several neighbors vehicles, 2 that were only 3 year old. Neither has mentioned any issues to me. I have never heard of a jumpstart harming a car's computer. After researching it further, my pre heavily electronic car method of jumping a car is the correct one.
This link I found doesn't say not to jump but to make sure the donor car is off before attaching the cables. http://www.familyhandyman.com/automotive...0/view-all
You probably keep jumper cables in your vehicle so you can solicit a jump if your battery dies or offer a jump to a fellow driver. But jumping batteries on cars built after 2000 might not be so smart. That's because newer vehicles contain as many as a dozen computers and even more digital devices. Jump-starting with cables connected to a running vehicle can create a voltage surge large enough to fry expensive computers in either vehicle. And, since most of these components communicate on a shared data bus, surge damage to just one computer or digital device (even a radio) can disable the entire data bus, preventing the vehicle from starting and costing hundreds to diagnose and repair. Think about that: You can cause expensive damage to your own car simply by providing a jump to someone else.
When you connect jumper cables from a running vehicle to a dead battery, the alternator in the running vehicle instantly puts out maximum charging voltage. That can create a voltage spike of up to 15.5 volts in both vehicles. And it's that voltage spike that can fry computers and digital devices.
One way to eliminate the voltage spike is to leave the engine off in the donor car. That will prevent frying computers in the donor car. But if the car won't start right up, don't grind away to the point that you end up with dead batteries in both cars!
