Exactly what does this charger do. Does it supply battery power when your phone battery goes dead.
626277
Thats what is supposed to do with out having to use a wall outlet. so far ive had no luck with mine. Sorry
789421
It has a "refresh" function where, after inserting your battery, you press the "Refresh" button and it undergoes a deep cycle - completely "draining the battery", so to speak, and then charging it back up*. I've brought some batteries back from the (presumed) dead thanks to this feature. You cannot set the charging current, though. I believe the unit automatically does this (other users should chime in here). The unit's display has battery indicators that provide you with the current charge status. One thing about the display - it is BRIGHT. Like, "Oh, you're going to sleep? How about I light your dreams through your eyelids?" bright. I put a semi-transparent tissue paper to take care of that. *Note: you will have to make sure your battery has a tiny bit of charge to it, otherwise the charger will say it is bad. In this case, charge your batt in a dumb charger for a few minutes and then put it in this for a deep cycle.
1239955
You charge the case . Plug your phone in then when battery gets low you hit a button on case and it charges battery about 20 percent. Mine seemes to loose its charge faster in my opinion. Case worked great. If you just want it for that.
1469573
No. This is not a battery charger. This battery holder just supplies power to a device that you connect to the holder via the snap connectors on the top.
1239954
If your phone is completely dead it will not bring it back to 100% but will give you around 65-70% ! Long story short it will charge your phone!
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!
2130875
it is a balance charger but if you have a cell that became discharged below minimal voltage then its not going to fix that. However if the battery just got discharged unevenly somehow, it may recharge it to full capacity. I am guessing that the battery developed a short and is probably defective, but trying another charger may fix it (if it was not discharged too far). Just be extra careful when trying to charge that battery and monitor it. Hope this helps you to decide what to do! It is a good little charger for the money!
260868
This is a manual charger, I have used it on all most dead batteries, it should also work on those completely dead. Automatic chargers will not. As to the use as a power supply, I have not tried that, but my knowledge of electronics tells me, it will supply the voltage and current, the voltage will be unregulated and unfiltered.
1574094
It charges just like you charge a cell phone battery. It's got the universal mini USB port. Plug the charger in and charge it up. :)
68183
I would typically plug it in when the battery died. I would just plug the charger directly to the phone or to my rapid-charge car charger - while still in the phone. One thing I should point out though. About one month after the warranty expired, the battery bloated up. I had to replace it with a zero lemon battery. I've had the new battery about 3 months and so far it is working flawless.
215108
The charger is guaranteed for one year. Just email the Seller if you have a problem. It will completely charge a dead/dying phone if the phone is not in use. If the phone is being used with multiple applications it will prolong the time you may use the phone. Great product with very safe Samsung battery that will not be dangerous as many of these products can be.
1165608
remember that this is an adaptaer that charges the battery not the device, if you unplugged and it shuts down, you have to replace your battery!!!
199248
No. As soon as you plug in the charger, your phone/stuff will do an emergency shutdown. All that happens to my stuff atleast.
345000
Time wise I'm not exactly sure but when I would fully charge mine then go to charge my phone. It would charge my phone battery a little over half before dying. Then I would have to recharge.
1324949
a fully dead battery might have other problems, like shorted cells, or something else that might affect it's ability take a full charge. But as far as the battery charger goes it should charge overnight, it's best i've ever had
1365360
as long as your charger is working you take the battery out of your phone to charge it.having an extra battery is a big help
565289
I agree with the other responses. It only charges the spare battery; the slot holds the phone upright. The phone can be placed sideways in the slot and the power cord that would plug into the back (for charging the spare battery) can then be used to charge the phone.