Disconnecting the battery when the engine is running

[t_marat]

What will happen if I disconnect the battery while the engine is running? Will the engine shut down or continue running?

[NovceGuru]

It will shut down. Atleast mine did when my battery terminals were loose

NovceGuru

[t_marat]

It will shut down. Atleast mine did when my battery terminals were loose

NovceGuru
Mine also shuts down if I disconnect the battery. I currently have a problem with my battery, it got drained. There is a seperate thread on that. I was thinking if my alternator was faulty.
You see the russian made cars engines continue running even after you disconnect the battery.

[shogun]

NEVER disconnect the battery when engine is running. In worst case you can have heavy damage to your electronic systems.

[winfred]

that's a bad thing to do to a computer controled car, with nothing for the alternator to push against and regulate itself by you get a massive power surge when you dissconnect the battery, yes the car may stay running but you can fry some stuff too

[SRR2]

Really *REALLY* bad idea.

Google battery & alternator & "load dump"

[ArtemLepilov]

Did it on a 92 geo prizm... was alright afaik

-Artem