has there been any fires from these batteries ?
1247004
No fires that I know but I did have 2 batteries swell and I had to replace them. I believe they do over heat at times but no fires to my knowledge.
1247005
No fires for me, I replaced my original battery after two years in hopes of getting longer time of use between charges. The replacement battery swelled after 5 months, so I went back to the original 3 months ago. I found that if I charge it when it drops to 50% it charges quickly and lasts longer than if I let it drain down to 10% or lower.
1122937
Mine NEVER caught fire or gave me any problems for that matter. I don't remember how long the warranty was.
1948674
I don't recall but have had replacement battery for over a year with no performance issues.
2147897
I've never had any problems with mine. Only time where it didn't fire when I wanted it to would be after several shots in a row. It would just get too hot without my extended battery pack. But I'm happy with mine.
1472436
Thanks Phil. I was concerned that these batteries that are factory pre charged have not been on the shelf for months. There is a limit to shelf life on these batteries.
2095854
I have had mine for over a year now and they are still fine.A lithium-Ion battery shouldn't really go bad.Thay don't have a charge memory where they loose capacity every time you use them..Just don't leave them out in the cold and not charged because that does seem like it can mess them up and don't recharge until they have cooled off..
1137491
Yes they are fantastic. Work very well with my innokin cool Fire 1 and 2. I have had these batteries for about 3 months and use them daily.
653544
We've had the phones for about 2 years now and haven't had problems related to the batteries. Seems like they last quite a while when talking for extended amounts of time on the phone. I've never had one quit while using them.
905740
I do not know the answer to your question. All I can say is that I have not had any issues with overcharging or over discharging of these batteries. I have been using this type of batteries (5000mAH) for the last two years.
828242
Yes they do. Check out their web sight: http://www.surefire.com/batteries.html
858896
There doesn't appear to be any protection built into these batteries. I took a voltage measurement while I had these sitting out of circuit and they had just over 4 volts several days after I gave them a little time in the charger.
479494
Stop buying crap batteries. I have one and they have lasted over 5 years. I change them yearly now that I started to use my fireplace.
1246463
No fires for me. But they did get extremely hot and that was a concern for me as well. When I unplugged them to change cartridge it was very hot!! Unsettling.
2176895
I have 4 of them in operation irunning in a solar garden light and Tikki bar light set up. The batteries have worked flawlessly even with extremes of temperature ranging from 15F to 120F. The oldest battery I have is 2 years and is performing the same as it was on day 1. I am very happy with these batteries.
2103368
I ordered the batteries, but have not yet received them. Since I placed my order three weeks ago and they are still not here and are NOt really anywhere where they can tell me,I recently cancelled the order. They could only tell me that they were "shipped", which I later came to believe was shipped alright, but from China! Also, some internet sources are calling this rating as a scam, since no batteries that size are rated with this much power. I would be VERY apprehensive about purchasing from this co. And no, they do NOT appear to be UltraFire.
1099599
We have not had that issue and have been using the batteries since September 2014.
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.