I bought 2 of these in late 2014. The first time I charged them, they swelled up, and I had to struggle to get them out of the charger.
2013889
Even before we could get them in the charger, they would not fit in. So my very handy husband just filed the edges down with a strong emmory (sp) board and they fit just fine. They are terrific in operation: hold a charge for a very long time and seem to have more "zip" to them than our previous batteries.
2013890
wow,,, that was not my experience. The one I purchased worked perfectly fine.
2013891
If you read my recommendations, you would see that cause is cheap unregulated power supply. Worse there are very few available for a reasonable cost.My cheap effective solution is to put a cheap plug in wall timer and set it to charge no more than 6-8hrs between uses. The cause of battery failure was simply overcharge as the wall charger supplies voltage continuously when plugged in.Even in you had asked for a replacement, new one world do same thing.I have an great runtime with these batteries over any others I has tried.Jack
1814237
They fit my phone, but never held a charge. I would steer away from these, and buy them local from a store. I ended up tossing out all my phones becacuse I was so angry over this and got all new ones.
1577344
I did on some ProCell "D" cells, not AAA. Had a fresh pair in a flashlight in the car that froze one winter. Never checked the light until late Spring, and found them dead, leaking, and swollen up.
740312
charger is comparable to the original charger that came with the phone, until the prongs pulled out when disconnecting the charger from the outlet one day . Now I can't use it for fear of starting a fire
1862941
I bought and exchanged this battery for charging problems. I was not happy with replacement battery either. I suspect that theses batteries are past their shelf life.
1320145
I have the Nexus 4 and bought 2 of these chargers. Both had the same problem: they charge the phone, all be it far less slowly than the micro usb, but the phone battery overheated and shut the phone down before full charge. I decided that burning up the battery for the sake of QI charging just wasn't worth the time and effort. I stick with the micro usb connection. Had a similar situation with the Samsung Galaxy Note 2. Tossed both of the QI chargers.
367456
The battery fit just fine. And after the first initial charge it seemed to work fine. Then it all went to hell. Overheated and expanded. Fortunate that it didn't explode or ruin my laptop. It did expand enough that my space bar could not function. So glad Amazon guarantees things or money back.
611226
Do not use this charger, for the first two charges it worked fine , but now it does not shut itself off and over charges. My 24 Volt lead acid batteries got hotter than heck I was afarid it could catch fire. I am glad I checked on it and disconnected it from charging.
494917
I connected two but they cannot take the pressure. Don't buy this product. They popped their connectors the first time I used them.
1945398
The batteries worked fine for awhile. I put them into the charger and the charger ruined the batteries. It was like the polarity markings on the charger were backwards. By the time I realized I was charging the batteries backwards, they were hot and ruined. I threw the whole damn works in the garbage. Save your money.
1279860
I returned this item because it was so difficult & complicated to take the phone out of the charger I almost broke my phone several times. I had to take the charger off the car to put the phone in or take it out of the dock & believe me, once that thing has your phone in its grip you almost cannot get it out.
325185
I don't know this was the first external battery case I have ever purchased. It didn't last long. Maybe 5 or 6 months. I thought I would have gotten more for my money! I wanted to check on the warrenty but I haven't gotten around to it yet. Last month when I pligged it in it said... this devise is not supported. WHAT? That after it was supported after 5 months. I did do a recent software upgrade on my iPhone 5s so maybe that had something to do with it. The charger it self is charged but my phone won't connect with my phone at all.
2112651
I have this charger and find it is hard to use. I am not sure it even charges. The batteries. Most phones now use the same cables. I would get a charger that uses cables, so the phone. Dosent have to be taken apart.
943711
Horrible design. Lost until you do it right once. There is a sweet spot. Lower left hand side, almost on the corner. Use your thumb and push on the battery from left to right and it pops out. I was so frustrated. It literally is a tiny little spot right above the double notch on the left corner of the charger. when done right it doesn't take much effort at all
637334
That happened to me with a different charger, and I tried in a different outlet, because my car have two, and it fit better Hope that help
1302860
I too have had the same problem of enlarged batteries. One did so immediately. One after a year. Both continue to work however.
1330091
They are slightly larger. One I bought only lasted 2 charges. I would not buy again