PV Gap

Martha Said:

Do cell phone battery chargers use power when not charging batteries?

We Answered:

They do not actually use any power, since there is nothing plugged into the other end to consume the electricity. There is no flow of power from the plug to the end of the terminal that connects to your phone while it's not connected. But....there is electricity flowing through the box part of the charger and that causes heat. This may be what's raised your question as to whether or not it's using electricity. But if you're really worried about it, I'm sure there are many more items/appliances in your home that use some degree of electricity even while idle.

Tammy Said:

Are our cell phone AC power supply battery chargers interchangeable?

We Answered:

Hi Traveler,

Your output voltage is the same. That is the most important thing.

The difference in mA (850 vs 500) is not significant. The charger with the 850 mA capacity might charge your phone a bit quicker but the difference would be slight.

You can use either charger on either phone.

If it concerns you the RAZR charger is 500mA (0.5A)

Norm

Wayne Said:

The iPhone runs out of Battery often, anyone know where to get a power backup station?

We Answered:

http://getinthis.cstrainingmotors6.com
A very informative website, kindly stay a minute in website and check

Fred Said:

What is the difference between battery chargers and power adapters?

We Answered:

In many cases, they are interchangable but the terms are used rather loosely at times.

In order to charge a battery, you need to have a charging voltage that is at least slightly higher than the voltage of a fully charged battery. Stand alone chargers that are intended for charging NiMH cells may have timers, peak voltage detectors, or temperature sensing circuits that will shut down the charger once the battery is full.

An adapter that plugs into the device that uses a rechargeable battery will not have the charge monitoring circuitry. Those functions will be handled by the device itself, i.e. a cell phone, laptop computer, MP3 player, or GPS. Those adapters are sometimes also called battery chargers eventhough they often provide power to the device and charge the battery at the same time.

I have a rechargeable flashlight that uses an adapter that is significantly higher than the battery voltage. It will not provide enough current to power the bulb. The charge controlling circuitry is in the flashlight so the charger is technically an adapter. There is switching arrangement that ensures that the bulb is never connected to the adapter so technically the adapter is a charger.

Clear as mud?

Don