Does charging an iPhone or playing music on it drain a car battery?

Does charging an iPhone or playing music on it drain a car battery?
If you have an older car and/or an ageing battery, charging a phone could cause trouble. It shouldn't cause an issue for healthy batteries though. Of course, that's assuming you mean charging your phone while you're driving. If you're sat in your car charging your phone from the car's battery with the ignition on and the engine off, this could definitely cause a flat battery.
Answered by Georgia Petrie on

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