Wireless charging
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A question about wireless charging as a backup for my phone.
I have a phone that "lives" in my car. It's plugged into the USB port in the console, and I use it for navigation, music, phone (duh), Siri, etc. However, because I don't drive the car all that much, it's not unusual to get in and find that the phone is dead, its battery having been drained over 2-3 days.
I'm wondering if a wireless charging device, plugged into the other USB port would keep my phone charged for the 2 days when there's no power going to the USB port. I need to have the phone/usb connection to use CarPlay in the car, so a standard power brick won't do. I see a 20,000 mAh charger that has wireless capability on Amazon.
Basically, I need a wireless charger that can keep a phone charged for 2 days.
Would that suit my needs?
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I think you can get away with a simpler USB power bank without the wireless charging function. Wireless charging is very inefficient, so you will waste a lot of the energy stored in the power bank's battery just for doing wireless energy transfer. Wireless charging also costs extra, the same extra could be used to buy a higher capacity power bank. Lastly, you have to place your phone against the wireless charger "just right" of the charging won't work. Say, you close your car door a bit too forcefully and that knows your phone out of alignment with the wireless changing station, and your phone would sit there and not charge. Sticking to wired USB charging is the more reliable, cheaper, and more efficient way to go. Good luck.
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I think you can get away with a simpler USB power bank without the wireless charging function. Wireless charging is very inefficient, so you will waste a lot of the energy stored in the power bank's battery just for doing wireless energy transfer. Wireless charging also costs extra, the same extra could be used to buy a higher capacity power bank. Lastly, you have to place your phone against the wireless charger "just right" of the charging won't work. Say, you close your car door a bit too forcefully and that knows your phone out of alignment with the wireless changing station, and your phone would sit there and not charge. Sticking to wired USB charging is the more reliable, cheaper, and more efficient way to go. Good luck.
@Axtremus thanks for your thoughts, but I think you're missing my point.
The phone has to be plugged into the USB port to use CarPlay. If I go with a wired power bank, that defeats the ability to use CarPlay without unplugging the phone from the power bank and then plugging it into the car.
The USB port does not charge if the car is turned off, and so the phone dies. Takes about 10 minutes to get it charged enough to turn on. My point is I don't want the phone to die while the car sits idle. I assume a power bank would have enough juice to keep the phone alive for 2 days, if the phone's not being used at all. Then, when I start the car, I charge both devices.
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Couple of thoughts:
- not wireless charging: swap phone connection to car when you get into car, swap phone connection to power bank when you get home
- wireless charging: get something to secure your phone to the power bank (Velcro strap, painter’s tape, etc.) so it stays correctly aligned with the wireless charging pad despite motions and vibrations of the car
Good luck.
