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587 posts

Ultimate Geek
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Topic # 189411 28-Dec-2015 22:56
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I have a 2012 Nexus 7 and the original charger got broken. I purchased a Belkin "MIXIT" 2.1A charger for it, and the thing was taking something like 10 hours to charge. When I use the 2A Chicony charger that came with another HP tablet, the Nexus 7 charges in a little over 3 hours (normal). When I charge the HP tablet with the Belkin charger, it charges quickly. So what am I to make of this? Why does the Nexus 7 charge so slowly on the Belkin charger. The same cable is being used.

I got one of those cheap in-line meters from gearbest. It says that the Nexus 7 on the Belkin charger never draws above 0.76A. Nexus 7 on HP charger: 2.6A. HP tablet on Belkin charger "3.89A". So I'm assuming that the meter is defective.

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483 posts

Ultimate Geek
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  Reply # 1458344 29-Dec-2015 07:42
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Simple answer: nothing is simple

 

http://www.extremetech.com/computing/115251-how-usb-charging-works-or-how-to-avoid-blowing-up-your-smartphone

 


Chargers negotiate with the target device over what voltage to use and how to charge.

Hence why manufacturers always recommend use the charger that came with the device.

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Uber Geek
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  Reply # 1458345 29-Dec-2015 07:48
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The Belkin chargers are the biggest piece of junk ever made. They won't charge anything at anywhere near full speed.

If you want better charging you need a decent charger. My advice is an Anker.




 
 
 
 


25662 posts

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  Reply # 1458346 29-Dec-2015 07:49
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The Belkin chargers are the biggest piece of junk ever made. They won't charge anything at anywhere near full speed. Assuming you've just purchased it take it back for a refund.

If you want better charging you need a decent charger. My advice is an Anker. Best chargers ever made as you'll see from the huge numbers of people on here (including myself) who are fans.





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