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Help New S4 not charging on car apdator when using GPS

rdefino

Well-Known Member
Oct 4, 2011
229
2
So I noticed that when I have my S4 plugged into the car adptor I see the lighting bolt and it will charge.

But If I use My Waze GPS app, it actually drains the battery instead of still charging. Still has the lighting bolt, but I actully see it drop from 56% to 55 to 54, etc...

Now my old Razr would charge will using the gps.

Any idea what's up with the S4. I hope this can be fixed.

Thanks
 
So I noticed that when I have my S4 plugged into the car adptor I see the lighting bolt and it will charge.

But If I use My Waze GPS app, it actually drains the battery instead of still charging. Still has the lighting bolt, but I actully see it drop from 56% to 55 to 54, etc...

Now my old Razr would charge will using the gps.

Any idea what's up with the S4. I hope this can be fixed.

Thanks

Sounds like the charger is not supplying enough power to the Phone. what amp is the charger?
 
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It's not an S4 thing - I get the same with both S4 and my Note II. It uses more than the charger can provide. I even tried a 2.1amp charger with not better results. I am thinking that maybe my 2.1amp charger is faulty, though. I need to try it again. However - if it's a 500ma-1a charger then I bet it's not supplying enough.

I was also thinking of perhaps using an inverter and charging it via the AC adaptor.. lol anyway, yeah - that is one of the reasons I stopped using Waze for now.
 
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Ya, this is a Samsung issue. I mean not having your phone at least hold the charge while using gps on the adapter is crazy.

I might be returning the phone!!!

It's not a Samsung issue. Its a powerful phone issue. My friend with the new HTC phone has the same issue using a generic ATT charger. The solution is very simple. Get a charger with at least 3A....
 
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Most devices now have low and high charge rates. For instance, the phone can pull more amperage than your PC USB port can provide. So, it will use a safer charging profile. However, when using an OEM (or properly designed third party charger), there's a small amount of resistance across two pins that tell the phone it's safe to charger at a much higher rate. It wont matter how much amperage your charger has if it doesn't tell the phone (or the cable doesn't provide) the spec needed to change to high charge rate. At <500mAh, it's just not enough to charge and navigate (screen on, scrolling, routing, data for maps and GPS).
 
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