Electronics Charging Question

[SWR]

I have 2 laptops and 2 cell phones. They all use the new Type C plug in.

The laptops use a 45w charger and the cell phones are typically a 2w charger. Is it safe to charge the cell phone with the 45w charger or will I burn up something ?

Steve

 

[blume357]

I don't think so but I'm going to bounce this to the top so that someone smarter than me can answer.

 

[Dan in MI]

Look up the specs for the new system. I would find it hard believe there isn’t some chips in there somewhere to regulate based on requirements.


As much as we hate big tech and big companies I cannot see how they could release a product that can be so mismatched that it could destroy something that it is designed to fit.

—-edit—- just did some reading and the answer is clear as mud. Mostly because they start mixing regular USB issues/compatibility with C. But it does look possible, or will be soon. It’s still early enough everyone isn’t on the same page yet.

 

[Mobuck]

Are we confusing watts and amps?
My little charging cube has ports labelled 5V/1.2 amps & 5V/2.4 amps. 45 WATTS @ 110 volts is 2.4 amps. I just checked Grouch Attack's laptop and it does say 45 watts but not the voltage. I'll venture that plugging a 110 volt charger into a 5 volt port will result in smoke.

 

[Pat-inCO]

WATT . . . . From the dictionary:

noun
the standard unit of power in the International System of Units (SI), equivalent
to one joule per second and equal to the power in a circuit in which a current
of one ampere flows across a potential difference of one volt. Abbreviation: W, w.

More simply: Voltage times Current (in amps).
Thus a 5 volt (USB uses 5) supply with a current of 1/2 amp would be 2.5 watts.
Or a 5 volt supply with a 9 amp capacity would be 45 watts.

What I would do is to call the cell phone manufacturer and verify that YOUR phone
has a current limiter, built in, to assure safety if using the 45 watt supply. :wink:

P.S. I would also verify that the 45 watt supply IS a 5 volt.

 

[Captain America]

With Android it varies from device to device, Apple products will charge at the products highest charge rate with an approved charger, a slower rate or not at all with an unapproved charger...Apple products will even detect an inferior cable and won't charge.

 

[blume357]

I'm by no means and expert... but I suspect the watts rating on the charger is just the max it can put out and any devise you hook it to will pull what ever charge it needs until the battery is full... unless the charger just can't produce enough.