The batteries are all puffy. One just a bit, one moderately, and one so rounded it cracked my case! Are they usable? Are they safe?
1611869
Do not use puffy batteries. They will explode on you. Literal fire and smoke, almost a mini grenade in your pocket. Happened to me with these same batteries.
1611870
All four of my batteries became swollen after 2 1/2 years, some slightly, some noticeably. I disposed of all of them. Swollen batteries cannot be used as there is a risk of damaging the phone or in more serious cases, exploding.
1611871
Same problems, puffy and it look like it's about to explode, in two months. I wouldn't recommend to anybody buying it.
397414
I used mine for that long but as with other extended batteries I've tried, I stopped using them due to the batteries swelling up and popping the back off the phone. So, I bought another stock battery and just kept a charged spare on hand to swap out.
293716
When I hold them firm even the dead batteries show full. Maybe it's defective??
1454222
I wouldn't. These batteries have NO protection. To be "safe", you should only use these with at least a kick2, but ultimately they are more for your regulated devices with safety build in, like a VTR, Vamo, Provari, etc. What you want for what your describing is an IMR battery, not a Li-ion. Hope I helped a bit.(I know the 3400mah looks appealing, but these are the wrong battery for you)
1027029
Yes, just be very careful that you put them in correctly. Otherwise, any remaining charge in the battery will melt the charger.
2108454
it does look fragile, but i did it slowly & had no problem. i have alot of pieces that require batteries of that kind & have never had trouble. you might keep asking & perhaps get someone w/ a technical mind. i can only offer you my own experince good luck !
515156
I used mine, and one of mine also broke right off. You can't press to hard or they break.
2259688
I use them in my mod, they are the longest lasting batteries I own. just make sure your mod excepts 18650's.
26323
I'll add to the other responses. NO! Li-Ion batteries have a high explosion danger when you do that kind of thing.
2049682
They KIND OF fit. When you go to replace the factory batteries out of the phone and use these, The battery cover does not close like it should. You have to force the cover on and push certain areas in to get it to seal. But that in of itself is a good thing. The factory batteries that were in there were loose enough that if the phone dropped, the cover would come off, possibly break. But these are such a snug fit that the cover does not come off so easily.
143550
hi, always rinse them off with water immediately when done swimming and never let the battery go below a 1/4 charge. Even when storing and not using for a while, you will want to make sure to keep the battery charged. Also, they don't last for ever and if you have a local battery dealer, they can make a custom battery for you that will last longer then the factory. This is just my experience with the unit. I hope you find it useful. Tim
1227312
No, that is the only way I have used them. The batteries are fine after 1 month, and using them 4-5 nights a week for 8 hours or more.
908817
I have seen them for sale in the past.....When mine broke the cause was actually the battery swelling .....set the removed battery on a hard flat surface and see if it rocks back and forth....
732111
I doubt it will ruin the batteries unless you store them in the cold, however cold batteries will have a lower performance. But these heat up pretty good when operating so I am not sure if it would be observable.
818534
Yes the same thing happened to me and the batteries worked great. They are a hair thicker than the OEM case so you may need to get a cover to keep the back from popping off ocasionally. Small price to pay when the alternative is a whole new phone.
1132351
No, they are not. The corners are ever-so-slightly less rounded than a typical consumer battery, but I've not found that to make fit a problem.
2217488
Lol you should be fine. I use it as the battery in my Tiburon and nothing exploded. Can't see why you'd have any trouble. Bought it for the same reason as you actually.