Quick AC Charger from T-Mobile

[richv77]

My friend just purchased an AC charger for his T-Mobile Galaxy S2 and the sale person said it would charge quicker than a normal charger.
I tried it yesterday and it was very quick. When I plugged in my S3 it was at 35% and I can swear in was up to 45% in about 10 minutes.

Are these high speed chargers good for your battery?

Thanks for your comments.

-Rich

 

[meyerweb#CB]

Well, there's one member here who claims to have tested the S3 and found it won't charge at a rate of greater than 800mA no matter what charger you plug it in to.
Let's do some calculations: The stock battery in an s3 is 2100 mA. So 35% would leave you at about 735 mA. 45% gives you about 945. That's a gain of 210 mA in 10 minutes, which implies a charge rate of about 1260 mA. So you might want to double check your measurements more carefully.

But assuming your measurement is correct, I think that as long as the battery doesn't really heat up while charging, you're probably OK.