Quote:
Originally Posted by The Wind Breezes
You're not trying to minimize "fluctuation" you're trying not to run out of juice. It won't happen unless your battery is old and weak. But, just in case, you can hook up those cables front or back or hook the car to a charger. Voltage can vary widely depending on how many accessories you have turned on sagging the output and whether the other car is running / how long the charger has been running.
In short stop thinking and start doing.
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Well my FRM got fried (which has since been fixed) and I'm suspecting it was because of voltage fluctuation. I could see the voltage playing around between 12.2V to 12.6V and it could've may be even gone lower. I know when the DME on my e46 was updated, he did it while having it connected to another battery and he cited voltage play..but maybe it was to avoid draining the battery to in essence.
Would connecting it to another car avoid frying it again?