how do you know when charger has full charge and how much charge is left after you charged your phone.
2028177
The four circles you see in the pic are "charge bars".very easy to see how much is left. Love this thing. It's bailed me and a few friends out many times.
166684
When you attach the maintainer to the battery it will display a digital read out of the percent of charge that the battery has. It will continue to increase the percentage as the battery charges, when at a 100% it will display " fully charged and maintaining". It don't take very long to bring a battery up to full charge, but of course it depends on the condition of the battery. I would definitely recommend the charger/maintainer.
1169030
On my phone, I see a black area grown as the battery is used. After recharging the phone will chime letting me know it has a full charge. I make sure the battery is seated properly. I can go in stand-by mode for several days and the battery indicates a full charge.
680993
Take it out of the charger and put it back in. It's just the indicator light on the charger. If you put it in the phone it should show up as fully charged. I charge my OEM battery in the wall charger all the time without any trouble.
1108513
I last charged mine almost a month ago and just checked - it still reads a full charge. I've yet to run into a situation where it's drained significantly while sitting unused (I've only had mine since March though).
1100666
Well like I said in my review you should turn it on when you get to about 20% or before to make sure you get a 100% charge. What really helps is if you turn it on, then turn your phone off. In about 20 minutes you're at 100% & you can more than likely charge your phone more than once.
2268703
It seems to shut off when full charge is reached, don't know the answer too second question.
1286580
Basically an old wive's tale at this point. Modern chargers mostly detect when a battery is full and stop charging (or drop back to just trickle charging). I wouldn't worry about it unless a manual for a device specifically says to disconnect the charger after a full charge. There's so much mythology and repeated nonsense out there about batteries, chargers, and how they work!
399176
There is no way to know when it is totally charged. I just charged it up overnight and it held a charge for a long time.
46859
This is a normal behavior with battery extenders and overnight phone connections.. Modern cell phones and lithium batteries don't continuously charge, they stop when they get to 100% and then start again at 97% or so.This means once your phone is fully charged it stops drawing power from the charger, and the charger shuts off. So 30 minutes later when your phone battery is low enough to try to charge again the external power isn't there.
135923
If you turn it on while it is charging, the battery icon that it has in the top right corner will cycle between three bars flashing and when all three bars are visible and no longer flashing, it is fully charged. Just so you know, when you charge it while it is off, the battery icon doesn't appear but it still does charge.
2252281
The batteries are sold partially charged. Your charger completed the charge by adding 670 mAH. What you want to use is the Refresh option which charges fully,then discharges, measuring the MAH of the discharge. It will do that several times, each time the mAH is a little higher. After a number of times, the mAH no longer increases and the charger leaves the battery fully charged. At that point, you use the Display button to display the mAH. For new AA batteries, it's slightly more than 2000 mAH. Bbefore you start all this, insert the batteries, then disconnect and reconnect the DC cable, then press the Current button repeatedly until the display reads 700 mA. That makes the charging current 700 mA, which is fine for AA batteries, and the charge-discharge cycle is much faster than with the default charge current of 200 mA. New batteries need this refresh cycling to reach their rated capacity of 2000 mAH. If you just use the discharge-test mode, you will get less than the rated 2000 mAH. Look on the Internet and you'll find all of the above and more.
947510
I don't think I can be of any help, but maybe the charger is bad. Usually when you charge a phone it tells you if the phone is charging and when its fully charged.
167589
No, there was no indicator on it to show how much charge is left, but there are red and blue light showing whether the power is full or not.
327567
Just insert the batteries into the charger OBSERVING PROPER POLARITY (battery + to charger +) and wait until the charger LED goes from red to yellow to green. When the charger LED is green, the battery is fully charged.
2150963
There is a light on the charger that changes color when the battery is fully charged. Usually, if the battery was totally discharged it will take one to two hours to fully charge.
368733
I normally just allow my phone to get to 2% prior to charging it. I tried at 30% before and the phone seemed to die fast than before. It takes my phone a couple days to reduce to 2%. If it is at 20% I will play games for about an hour so I can throw it on the charger for the night. It does take a few hours to get a good charge on it.