What or if it was charged by other meens (while the car was running) would that ultimately save on petrol?Changing the way a Car battery charges?the only thing that the battery does is start the car and run in dash and car appliances (Radio - guages - heated seats - lights). In no way will changing the charging method alter your fuel milage. The alternator is turned by a belt that the engine spins while running. If it spinning the alternator to charge the battery, the steering pump, etc. it would still spin...
so the answer... NO.
try driving less agressively.Changing the way a Car battery charges?The amount that you would save would not be noticeable at all.Changing the way a Car battery charges?Battery charging uses only a small portion of of the electricity generated by the alternator, your fuel pump, spark plugs, all the lights, heater fan, window defroster are other electrically powered items.
