I'm confused about UltraFire 14500 AA sized 3.6V Li-Ion Rechargeable Battery 900mAh CR 14500 Lithium Ion I'm kind of confused. What ARE these batteries good for if they are not good for replacing regular AA batteries? I'm confused about UltraFire 14500 AA sized 3.6V Li-Ion Rechargeable Battery 900mAh CR 14500 Lithium Ion I'm kind of confused. What ARE these batteries good for if they are not good for... » Read More I'm confused about UltraFire 14500 AA sized 3.6V Li-Ion Rechargeable Battery 900mAh CR 14500 Lithium Ion I'm kind of confused. What ARE these batteries good for if they are not good for replacing regular AA batteries? « Show Less
447040
Those batteries can replace regular aa in certain items only.They give more power than the regular aa but have to be used only in compatible items.For example they are great in this flashlight UltraFire 7w 300lm Mini Cree Led Flashlight Torch Adjustable Focus Zoom Light Lamp
447041
These batteries are great for over-volting Nerf blasters and provide an insane performance boost with only 3 and a dummy battery. Four would, quite unfortunately, burn out the motors after a single game.
1646124
The specs are: AC110v-240v 50/60Hz input (international charger, can be used worldwide) Output: DC 4.2V 800mA 18650 3.7v Rechargeable Li-ion Battery Capacity: 2400mAh Voltage: 3.7V Rechargeable times: Up to 1800 times. The information on the battery a chargers follows: 18650 3000mAh 3.7V Rechargeable Li-Ion Battery + Charger Combo by UltraFire 802 customer reviews | 15 answered questions List Price: $34.95 Price: $7.10 You Save: $27.85 (80%) Note: This item may be available at a lower price from other sellers that are not eligible for Amazon Prime. In Stock. Sold by super shop and Fulfilled by Amazon. Gift-wrap available. Want it tomorrow, April 2? Order within 55 mins and choose One-Day Shipping at checkout. Details Li-Ion Rechargeable 18650 with IC Protection (pair) Charges 1 or 2 batteries simultaneously Can be charged over 500 times Holds 85% charge over 12month period Travel charger folds up for easy transport 47 new from $5.70 Hope this helps Mike
1907409
A reviewer on the trustfire 26650 batteries said that the ultrafires that claim 6000 mAH are more like ~3200 mAH. ymmv, but I've never seen any of the 'fire' branded batteries actually reach the claimed capacity.
809708
well....i bought the ''ultrafire'' 3.7v li-ion....ive been using these for 2 weeks now, and trust me, i have re-charged them only 2 times....i would defenetly recomend them..
1940581
These batteries are rated at 3.6 volts each. A regular AA is 1.5 volts. I recommend you to use 2 regular Duracell (or similar) rechargeable batteries rated at 1.25 volts each. In a pinch you could use (1) 14500 and a dummy spacer battery, but there is a chance you could damage the LED driver circuit, and if it did work you would have a shortend operating time due to only a 1200 mah rating on the battery ( a single rechargeable AA battery typically has a a 2000 mah rating, or more stored energy). So in short, don't use this battery, use regular AA's or 2 standard rechargeable batteries. Hope this helps. ~ James ~ These batteries are rated at 3.6 volts each. A regular AA is 1.5 volts. I recommend you to use 2 regular Duracell (or similar) rechargeable batteries rated at 1.25 volts each. In a pinch you could use (1) 14500 and a dummy spacer battery, but there is a chance you could damage the LED driver circuit, and if it did work you would have a shortend operating time due to only a 1200 mah rating on the battery ( a single rechargeable AA battery typically has a a 2000 mah rating, or more stored energy). So in short, don't use this battery, use regular AA's or 2 standard rechargeable batteries. Hope... » Read More These batteries are rated at 3.6 volts each. A regular AA is 1.5 volts. I recommend you to use 2 regular Duracell (or similar) rechargeable batteries rated at 1.25 volts each. In a pinch you could use (1) 14500 and a dummy spacer battery, but there is a chance you could damage the LED driver circuit, and if it did work you would have a shortend operating time due to only a 1200 mah rating on the battery ( a single rechargeable AA battery typically has a a 2000 mah rating, or more stored energy). So in short, don't use this battery, use regular AA's or 2 standard rechargeable batteries. Hope this helps. ~ James ~ « Show Less
597504
Sounds like they sent you a flashlight that takes 18650 batteries that are slightly larger than the 14500 batteries. Is the shaft too long and just a tad too wide. If so it means it is for the 18650 batteries. Go to any store that specializes in batteries, take the flashlight and see if the 18650 batteries fit in it. If they do, they sent the wrong flashlight or the wrong batteries.
974344
The batteries are known as 18650 and are amazing and rechargeable. Usually located in the "customers also bought these items" section. It's a great light. Durable/tough, bright and is available in 5 Mode, which I would recommend. Also, definitely prefer this over the 502b, which is just not as rugged, but would be lead to believe it is newer and better as it is a higher number. Not sure but off topic.Great light 18650 are the batteries it needs or you could use VERY expensive 2 x cr123 non chargeable batteries. WASTE OF MONEY. GO WITH A PAIR OF 18650 AND A CHARGER for about 10 bucks! Hope it helps. The batteries are known as 18650 and are amazing and rechargeable. Usually located in the "customers also bought these items" section. It's a great light. Durable/tough, bright and is available in 5 Mode, which I would recommend. Also, definitely prefer this over the 502b, which is just not as rugged, but would be lead to believe it is newer and better as it is a higher number. Not sure but off topic.Great light 18650 are the batteries it needs or you could use VERY expensive 2 x cr123 non chargeable batteries. WASTE OF MONEY. GO WITH A PAIR OF 18650 AND A... » Read More The batteries are known as 18650 and are amazing and rechargeable. Usually located in the "customers also bought these items" section. It's a great light. Durable/tough, bright and is available in 5 Mode, which I would recommend. Also, definitely prefer this over the 502b, which is just not as rugged, but would be lead to believe it is newer and better as it is a higher number. Not sure but off topic.Great light 18650 are the batteries it needs or you could use VERY expensive 2 x cr123 non chargeable batteries. WASTE OF MONEY. GO WITH A PAIR OF 18650 AND A CHARGER for about 10 bucks! Hope it helps. « Show Less
294248
I have tested AA and AAA alkaline and rechargeable up to 2500 ma in rechargeable. I have also used it with the CR123 3v lithium that my flashlights use with very good success. I have not tested any other batteries so far. My AA rechargeable batteries are the nickel metal hydride type. I have not tested the older nicad type rechargeable.
888318
The most milliamps I've gotten with UltraFire batteries is around 600mAh. I suspect the cheap charger that comes with these cheap batteries may time out. Panasonics would take a lot longer to charge on that charger than UltraFire batteries. I recommend the ThruNite universal charger 2 or 4 bay with the LCD display that displays voltage. It charges at a 1 Amp rate. I have used it to charge both Panasonics and UltraFires. Best charger as of 8-2014 in my opinion.
939773
I am currently using TrustFire batteries, but thinking about ordering Panasonic. The TrustFires to warm up, but not to the point where it is to hot to hold. Are you sure it is the correct battery. I know there is a 3.6v n 3.7v battery, both being a 14500. Maybe that has something to do with it... And fully charge the batteries when u get them in. A lot of times they come with a 1/2 charge.
1277638
The Ultrafire requires two 3V Lithium batteries. You can get about 12 hours of continuous use.
438182
I have this 3000 batterie on an UltraFire WF502B they work perfect so far. I think the difference between numbers is the amount of charge they hold.
839466
They are not a normal size battery. They are all over larger than AA, more like a longer slimmer C battery. They are very specialized for specific items. All the information provided on the battery is in the name: BRC 18650 3000 mAh 3.7V li-ion made by UltraFire.
597503
i haven't recieved my amazon order for this yet but have one from a previouse merchant. it is made to handle lithium 14500 rechargable, or standard AA batteries. just put one in and try it. works great!
391670
Most rechargeable have a voltage of 3.7 to 4.2 volts, unlike the regular lithium batteries that are 3 volts. So potentially, you can burn up the flashlight as 12.6 volts is a lot higher than the 9 volts that the light was designed for. Not recommended...
1048554
It specifies Lithium rechargeable batteries. I am having trouble finding rechargeable batteries that are lithium...most are Ni-MH. Can these still be used? (Sorry for the ignorance...I have never used rechargeable batteries!)
2213490
The 123, Li123, CR123, x123A batteries are non-rechargeable. They provide approximately 3.2V when new. The equivalent LI-Ion rechargeable cells are the 16340 size, rated at nominal 3.7V with 4.2V when fully charged. The 16340 cell fits and charges in the TrustFire TR-006, with the switch set to 4.2V. 16340 number refers to the approximate dimensions of 16mm Diameter, 34.0mm Length.