Starting (without moving) a car, can charge the battery?

Starting (without moving) a car, can charge the battery?

Depends what you're charging. Take an iphone for example. No it won't charge quicker in a wall socket because the battery needs to be charged at the same rat or it will ruin it. A usb outputs 5v i think and a wall socket 120, so when you plug it into the wall it is "down scaled". Moving has nothing to do with it. Keeping the engine near 2000 RPM will charge it faster. Hmm thinking You'd have to drive with the motor above 2500 rpm for at least 2 to 3 hours with any hope of it starting the next day. Yes, letting the car run will charge the battery. Driving does it faster. If you want to charge it just idling, let it run for a good half hour or so. Starting the car uses some power from the battery, so you need to let it run long enough to make that back and then some. Driving, the motor runs faster, which makes the alternator run faster, generating more electricity to charge the battery with.

Moving has nothing to do with it. Keeping the engine near 2000 RPM will charge it faster.

Hmm thinking

You'd have to drive with the motor above 2500 rpm for at least 2 to 3 hours with any hope of it starting the next day.

Yes, letting the car run will charge the battery. Driving does it faster. If you want to charge it just idling, let it run for a good half hour or so. Starting the car uses some power from the battery, so you need to let it run long enough to make that back and then some. Driving, the motor runs faster, which makes the alternator run faster, generating more electricity to charge the battery with.

  • Why is my iphone battery going down when I charge it in my car? So I have a iPhone 6 and i have a 2015 Mustang and when i plug in the usb or use a car charger in the car it goes down instead of up i don't know why it keeps doing this but I can charger anywhere else in my house or anyone else's car and it charges but in my car it's not charging the battery just goes down while plugged in and I've had this car for about a month
  • Want to charge iphone from 12v car battery? I have 12v lights, and radio in caravan. Want to install Accessory Charger Socket (cigarette lighter) to charge iphone. Battery is car battery not leisure, charged by Solar Panel. Have tried wiring socket, but it just blows the charger. Any thoughts? Anyone help?
  • Is there an app for starting your car or changing TV channels? Nowadays I see all kinds apps, but most of them are stupid or useless. Do they have some apps on Iphones or Windows phone where you could start your own car with your smart phone or use your smart phone as a remote for your TV and save me $$$?
  • How to charge my iPhone in my car without an actual car charger? I'm going on a long road trip. Since the iPhone battery doesn't usually last long, i was wondering if there's another way to charge my phone without a car charger. Because my lighter doesn't work due to a broke fuse in my fuse box… Anyway- is there any alternative to keeping my phone charged?