Car Phone Charger Battery Drain

So if you had a 100ah car battery and your phone s battery was 1 8ah which is equal to 1800mah a completely dead handset would pull less than 2 of the charge out of your vehicle.

Car phone charger battery drain.

At first it may seem harmless to plug your phone into your car s usb port. The blinking stopped after i unplugged the charger. In most cases it s usually down to the cable you are using. If charging maintaining a typical 1 5ah cell phone battery drains your 80ah service battery the float current for my cell phone charger in the car is on the order of 2ma.

If the car battery is old it may not be holding a full charge any more either. Even faster if it s cold like it has been. A charger does not drain a battery any charge in a battery can be slowly lost when a charger is off and the is attached to a circuit. However there are other actors that come into play like your charging port and actual device software.

And by the way here s how. Many of the newer car s trucks cig lighters accessory jacks now power off with the ignition switch to prevent this. Leaving the charger plugged in when not charging a cell phone may also drain the battery s power but this will be a slower drain on the battery than if charging a phone. Even a cell phone that is plugged into a 12v cig lighter can drain a battery if left for an extended period.

A car battery holds around 800 watt hours of power. So depending on phantom load of the charger it could drain the battery enough that it cannot start the car or even completely drain it. If the car is turned off just as with the lights inside the car the cell phone charger is drawing power from the car s battery. This must be an older truck.

When a battery gets old and you are online with the screen on the battery will slowly lose charge becaus. To prevent your car phone charger from draining your car battery you should unplug your charger from the power source when it is not in use. Even when it is not charging anything leaving the phone charger plugged in may drain the car battery and may deplete its power if the engine is not running which could leave you stranded or make for an inconvenient morning. Avoid car battery drainage.

In my experience this is usually the main issue.