I always try to keep my battery above 50%, like my gas tank.
I haven't really monitored how long it takes yet though.. I believe it to be pretty quick, but that's when I'm not doing anything on it. What I have noticed, is that if I'm doing anything streaming or downloading related while it's on the charger, my battery life doesn't really increase or decrease by more than 1%. That's also usually with the display on.
It's very quick I must say, I'm pretty sure it's doing 10% every 10mins or so, so 0-100% can be done in around 1h40min to 2h, it seems to slow down between 90-100% so thats why I say 2h, but upto 90% it seems to just fly through the charging.
Samsung GALAXY S4 32GB Exynos Octa Black Mist
Samsung GALAXY S2 16GB Exynos Dual Ceramic White
Apple iPad 4 16GB White WiFi+LTE
"World can't hold me, too much ambition"-Jigga
Well the battery was 50% charge when I received SGS4 yesterday and it took approximately between 1 - 2 hours to reach the full charge status with the light turning blue from a pink magenta. I let it ran down to less than 10% this evening and it took approximately between 3-4 hours to fully charge. Mind you, I wasn't actively timing each charging session with a stop watch so the times I stated are just my estimations on the time it actually took while I was moving around my home doing other activities and minding that mini me (my son) didn't mess with S4 while it was charging.
I was down to 11% a couple of days ago. It took right at 2 hours to recharge to 100%. I just happened to be standing near the phone when I saw the light switch from red to green indicating a full charge was achieved. This is with the phone on, in standby. I don't know if it will charge faster if the phone is off or not.
From 5% to 100%, mine takes around 2 hrs in standby mode. It charges in about 1 1/2 hrs if my phone is off during charging. I use my phone as an alarm clock, so the screen is on, but dimmed, and it takes about 2 1/2 hrs. from 5% to 100%. For the size battery the S4 has, it charges really fast in a short period of time.
I let mine go down to 20% and it takes about 90 min to charge back to 100% in the phone.
The Samsung charger takes about twice as long to charge from 20%. That's why I have two batteries, one is always full and ready to go
Depends on how I am charging and the rating of the transformer I'm using. Here are some examples:
If I use the wall plug and cable provided by Samsung with my S4, then I charge at about 1900 mA. The wall charger is rated at 2.0 A. My phone charges very quickly.
I have an HTC charger that is rated lower than that, so I get about 1340 mA. That charges the phone somewhat slower than the one above.
I have another wall charger that only charges at about 300 mA. It's not designed to charge phones, but other micro-USB chargeable devices (e.g., blue tooth device), so charging is very slow, and may not be sufficient to actually charge the phone if I am using the phone. That is, the battery drain may be about the same as the charging.
Using a computer USB2 slot, I charge at about 460 mA--about 1/4 as fast as an OEM wall charger. From my USB3, I get about 700 mA.
For quickest results, then, use the Samsung OEM wall charger.
The all-new Samsung Galaxy S4 is all but guaranteed to be the next top-selling device. The new device is dubbed the "Life Companion" due to its intuitive features. The Galaxy S4 sports a 5-inch 1080p Super AMOLED display, an awesome 13 MP... Read More