Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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Default USB car chargers

On Fri, 27 Dec 2013 13:58:19 -0500, TJ wrote:

aged batteries can do funny things before failing completely.


Thanks. This whole current:wattage thing is important, since without
power, it's just a conveniently sized brick - and - that darn GPS
sure *seems* to suck power out of my Samsung Galaxy S3!

I'm adding the GPS newsgroup, who might actually be able to answer
*how much power* GPS consumes in an Android cellphone anyway.

BTW, as further proof that price is no indication of quality (never was),
here are two ads which *sound similar* but which are not:

This (from the OP) 'says' it's a 3.1 Amp USB car charger adapter:
http://www.rakuten.com/prod/evogue-o...245314962.html

This 'is' a 3.1 Amp USB car charger adapter:
http://www.amazon.com/Tech-Armor-Cha.../dp/B00CD0J4BG

The first is really only a 2.1 Amp charger because it's limited to
10 Watts (bearing in mind USB is 5 Volts); while the second is a
true 15 Watt charger (which means *both* ports can output the rated
current simultaneously).

Notice the price is almost the same (at $7 and $8 exclusive of tax
and shipping).

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