Where can I get a good quality 14500 combo?
- Thread starter bullpup
- Start date
Help Support Candle Power Flashlight Forum
coppertrail
Enlightened
- Joined
- May 21, 2006
- Messages
- 920
I've not seen them in a "combo", but you can purchase 14500 cells and charger in the AW thread. I bought my 14500 cells and charger from dealextreme.com
Daekar
Enlightened
How do these 14500 cells from AW compare to say, Eneloop AAs? I mean obviously the voltage is going to be different (I assume 3.7v like the other lithiums), but if you were going to have a choice between 3 AA Eneloops and one 14500 to power the same device (a theoretical perfect device that would discharge just like equations say it will) what kind of runtime difference are you looking at? Are 14500s a way to achieve a big bang in a small package while sacrificing runtime?
coppertrail
Enlightened
- Joined
- May 21, 2006
- Messages
- 920
Well, for one thing, voltage. eneloops have a voltage rating of 1.2V, 14500 cells have voltage ratings of 3.6 and 3.7V. You also get much lower capacity. The Ultrafire 14500 cells I use have a rated capacity of 900 mAh, and it's actually probably lower.
Understand, you can't just throw 14500 cells in any AA light. The light has to have an input voltage rating of around 4.2V in order to safely use these cells. Even then, you'll have to keep an eye on the heat being generated. I wouldn't run a light on high for long periods of time with these cells. What are the benefits: Brightness, definitely. The price you pay is less runtime due to the lower capacity of these cells.
The only lights I use 14500 cells in are the Jetbeam MKII and MKIIx. These lights have an input voltage rating of up to 4.2V, and regulation works with these cells.
Understand, you can't just throw 14500 cells in any AA light. The light has to have an input voltage rating of around 4.2V in order to safely use these cells. Even then, you'll have to keep an eye on the heat being generated. I wouldn't run a light on high for long periods of time with these cells. What are the benefits: Brightness, definitely. The price you pay is less runtime due to the lower capacity of these cells.
The only lights I use 14500 cells in are the Jetbeam MKII and MKIIx. These lights have an input voltage rating of up to 4.2V, and regulation works with these cells.
VidPro
Flashlight Enthusiast
You also get much lower capacity.
but a relative ammount of total wattage. 800ma 3.6v=2.88w 2500x1.2=3W
and much less weight.
^ i just wated to point out that while the miliamp capacity Looks low, its holding the same relative energy inside, even if things run different when useing it.
much shorter runtime on anything not designed for it, and overdriving it and all, but great for anything DESIGNED for it from the start. anything desinged for BOTH, usually runs hotter for less time, with the higher voltage.
but a relative ammount of total wattage. 800ma 3.6v=2.88w 2500x1.2=3W
and much less weight.
^ i just wated to point out that while the miliamp capacity Looks low, its holding the same relative energy inside, even if things run different when useing it.
much shorter runtime on anything not designed for it, and overdriving it and all, but great for anything DESIGNED for it from the start. anything desinged for BOTH, usually runs hotter for less time, with the higher voltage.
Last edited:
Daekar said:
It's best if you list the setting you are considering using either type battery for. I'm sure you know, but putting the higher voltage Li-Ion in something not designed to accomodate that much higher difference can destroy it.
