Car Phone Charger Battery Drain

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.

Car phone charger battery drain.

A car battery holds around 800 watt hours of power. It s hard to say at this moment in time as there are many reasons as to why this may be happening. 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 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.

But unless you re desperate charging your iphone during your commute might be a big mistake. 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. In my experience this is usually the main issue. It s plugged into a live outlet 24 7.

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. Even a cell phone that is plugged into a 12v cig lighter can drain a battery if left for an extended period. When a battery gets old and you are online with the screen on the battery will slowly lose charge becaus. Avoid car battery drainage.

And by the way here s how. In most cases it s usually down to the cable you are using. At first it may seem harmless to plug your phone into your car s usb port. 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.

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. Many of the newer car s trucks cig lighters accessory jacks now power off with the ignition switch to prevent this. If the car battery is old it may not be holding a full charge any more either. 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 faster if it s cold like it has been.