[Sprint Samsung Galaxy S 4 Android Development] JesseAaronSafir:
Yeah I'm not sure what's up but my battery life on v6 has been pretty bad recently. I know that my home WiFi (on AT&T DSL) has been REALLY unreliable recently and after spending several hours on the phone with AT&T's useless DSL tech support, it's not fixed and the claim there's no problem. Speedtest.net was telling me my download speed was 4kbps and my upload speed was 71kbps. Yeah, that's a problem. Anyway, I reluctantly agreed (because it requires a contract) to switch to U-verse so I'm hoping that's a lot better.

Anyway, I started out my GS4 with the stock battery only and then added the Palm Pre Touchstone back cover (available on eBay $26) with my existing Palm Touchstone chargers and while it does charge, it does so very slowly. So then I ordered two of the official Samsung Qi Wireless Charging Pads and the official Samsung Qi Wireless Charging Back Cover for the S4 as well as the official Samsung Battery Charging Kit (comes with a spare battery, an external charger and a charging cable). I've found the official Samsung Qi wireless charging is also pretty slow. The phone will charge via USB 0-100% in about an hour and a half but using the Qi wireless charging, it takes more like 4 hours to charge 0-100%.

I like the shape and size of the external charger but I don't like that I can't tell when the battery is full. If the LED changes color, I can't tell because I'm red/green colorblind. I prefer my old universal Anker charger from when I bought batteries and charger for my HTC Evo 3D. The LED on it is red while charging, I think, then pink or purple when it's almost full and then bright blue when full. I can see those colors. But it also has that annoying thing of having to manually line up the pins.

I also bought a 2 pack of the Onite NFC batteries with a charger:

http://www.amazon.com/gp/product/B00D84IQTC/ref=oh_details_o00_s00_i01?ie=UTF8&psc=1

So far these batteries seem to be about equivalent of stock. The charger must be plugged into a wall outlet rather than a microUSB, which I dislike. They also charge fine in the phone or the external Samsung charger. I don't really need 4 batteries. I was thinking of returning the Samsung charger and spare battery but I haven't yet.

I also picked up two of these sweet car chargers:

http://www.amazon.com/gp/product/B0077PM3KG/ref=oh_details_o01_s00_i00?ie=UTF8&psc=1

They output 2.1a per USB port at the same time so you can charge two high-end Android or iOS devices at the same time in your car (including tablets). Most common use will be to charge my GS4 and my wife's iPhone at the same time. I had dual-port USB chargers before but they only provided enough power to charge one device at a time despite having two ports.

And I also picked up this awesome case:

http://www.amazon.com/gp/product/B00BYJXI1Y/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1

It fits with the thicker Samsung Qi wireless charging back. I thought about getting a thinner Qi wireless charging coil/receiver to put inside my stock back cover, which would make the device a little thinner and weigh a little less but I haven't done that.

Anyway, back to the battery life issues...at home yesterday, I ended up using 3 2600mAh batteries in one day, even putting the phone on the Qi charger as well. It was draining hella fast :(

Another possible factor is that my phone is set to auto-upload photos and videos to my new BitCasa Infinite Drive account. I saw it trying to upload a video or two so maybe that combined with how poor the Sprint 3G signal is in my house and how horrible my DSL connection is has the most to do with why the battery life was particularly bad yesterday.