My Hyperion Samsung Galaxy S4 7500mAh Extended Battery purchased in February is rapidly discharging (50% in 2.5 Hrs) and overheating.
1745803
Contact the company for a replacement, sounds like a defect. I never had that issue with mine.
1745804
I only had this problem once & installed the Battery Doctor app. Seems to work very well -- it'll alert you to any apps that are unnecessarily running & allow you to shut them down with one tap. Haven't had a battery drain problem since.
1498841
The likely suspect is that the battery will no longer hold a full charge and depletes early. It's a cheap fix and if it doesn't help then there's something in the phone drawing the battery down.
755387
My phone would occasionally get too hot that I had to shut it down. It wasn't only with this battery though. I experience it with the regular battery as well. I think it's just a flaw with the phone.
1372969
I think it might be that your battery is dead, LiIon batteries are highly sensitive to overcharge, meaning that they are damaged when you keep your charger connected after it has reached 100% charge. Get a new battery and try to avoid extreme charge states (full discharge and overcharge) are bad for your battery, don´t let it fall under 20% and don´t chrage it over 95%!! Hope this is helpful
1887754
I haven't had any issues with my battery. It sounds like your issue is a physical issue with the phone or the phone's OS has some corruption of some sort.
2094560
Same thing happened to me.. The battery puffed up and almost melted my phone...smh
2071233
It turned out to be my phone, not the battery's. The company sent me 4 more of them, and they didn't last long. Get a new phone.
410024
No, mine seems to be just fine. I have had it about a month and already charged it many times.
749468
I bought this for my Galaxy S2 but my phone still heats up and won't hold a charge. I guess it depends if your battery really needs to be replaced or if there is something wrong with the phone itself. The battery loses it's charge half way through the day and all I use it for is texting and a few short phone calls.
1967870
I had same issue less than 2 months of use . Medicool brand is not reliable and decided to purchase another brand (rechargeable)
1074688
I understand your problem, but as I have not had a similar experience, I can only theorize as to a solution. It sounds as though you may have a defective or worn out battery; like any other battery, this one may last only so long. If this is the case and there is a warranty on the battery, you may be able to obtain a replacement by contacting the manufacturer. It's either that or purchase a new battery. Sorry.
1352472
Yes. You take off the back of the Galaxy S4, take out the battery, and put this new battery in it's place: As the picture shows, ANKER sends you the battery AND the "new thicker back case" to enclose it. It does add thickness and some weight to the phone, but I find that to be a VERY small inconvenience when compared to the time spent NOT charging this your device with this battery. With lite to moderate use? I can go easily 3 days before turning off the phone and charging it. I HAVE NEVER RUN OUT OF BATTERY. The "trick to this battery" is to fully charge it then let it get down to about 5-10% charge. Turn it off and charge it completely. After 3-4 times of the complete discharge/recharge cycle? This battery will amaze you with it's longevity between charges. So it makes the phone thicker and a bit bulkier: I'd rather have that than the possibility of running out of juice while on a conference call........Give that some serious thought......... I HIGHLY recommend this battery for the S4, and wise that you chose a phone that you CAN swap out the battery for a higher mAh power rating on it. I also highly recommend the TPU (semi rigid/soft silicon) case from Hyperion: Hyperion Samsung Galaxy S4 Extended Battery HoneyComb Matte TPU Case / Cover **Hyperion Retail Packaging**
764127
I don't have s4 mini but for the last 45 mins my battery went from 6% to 20% in other words cra for S4
54852
Nope . I actually had the same issue with one of my iPhone 4S and took it to a repair shop to get the battery IC replaced which normally causes the issue with the battery getting hot n draining even though it's on the charger. I ended up spending 120$ to try to get it fixed but the issue was still there. What I ended up doing was selling the device AS IS on craigslist and at least made 90$ for the device
1231582
I suggest you contact the manufacturer. It may be possible the battery could overheat if kept plugged in 100% of the time.
211855
Direct answer, I don't know. Not had that issue, might try draining it completely and then a full recharge. Depending on how long you've had it, might be worth reaching out to the outfit you bought it from for a replacement. Most want to maintain a high rating and good customer services will go a long way.
428774
No, it's not normal, you should send it back, mine has always charged to 100% in the 3 months that I been using it.