do I need to power down my mobile device for faster charge or can leave it on while charging?
242667
sorry I have not powered down mobile device and then charged it. I just charge when it is down.
242668
My Kindle and my cell phone can both be left on when I'm charging them. If you have other devices, I would check your manual. I'm guessing if you can normally use it with your regular charger, you should be able to use it with your RAV power charger, too.
31337
I believe it charges while in use, but I rarely use it without having it plugged in.
2171449
It is best to power off your iphone then let it charge. it's ok for emergency but sometime it does charge very slow
1067693
I just leave it alone. As long as its not charging another device it will turn off on its own.
146252
Depends. If the device is powered off it will almost always charge (slowly). If it's turned on it might either charge *very* slowly, or not at all, or even still lose charge if you're actually using the device. (You'll see the latter with high-end phones or tablets if you are running a 3D-rendered game -- the device will be using more power than any USB charger can safely deliver, so the battery will slowly drain even if it's plugged in. With a crappy charger this can happen even if the device isn't doing much.)
172519
It doesn't hurt to leave it plugged it for a few hours to a day after fully charging. Letting it drain completely does more damage to the battery. For a more complete answer read this http://www.howtogeek.com/169669/debunking-battery-life-myths-for-mobile-phones-tablets-and-laptops/
210306
No it's best to charge it overnight before attaching devices to it to charge. Charges phone with no battery in an hour.
2147847
The Nyko charge base has an auto shut off feature. So you should be good with leaving your items charging.
317045
I leave on charging station all the time since it shuts itself down when fully charged. Does not affect the battery if I remember correctly.
897890
The phone will indicate that is charging. .. but the app kills it as fast or even faster.... but if you close other apps not in used at that moment and turn the screen off ... ot will charge. .. slowly but it will go up.
1215000
I only know that i need to charge it when it stops playing music, but it can be in the on or off position to charge, i prefer the off position though because it charges faster. there is no indicator for it charging however.
771943
Best to turn it off then charge it....don't let battery drain totally. I often use it plugged in when it's fully charged.
224902
You can, but its a slower charger so you would need to leave it on all the time but it will work
1805494
I believe you will get faster results with the unit turned off. That is how I charge mine.
601982
When I just let the phone sit and dont use anything on it, it takes 1 1/2 hours to charge and faster if you turn your phone off and charge it.
628461
Instructions say to leave it on. You may use the speaker while it is charging.
1552154
That's a good question. It stays on all the time, and seems to be indicative of whether the charger itself is getting power, not whether your device is fully charged. I have not been able to decipher whether it actually stops sending power to your device when the device is charged, so for that reason, would not buy it if that's the most important feature to you. However, it could work great for a night light for travel!