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Old 02-09-2012, 12:53 PM   #76
petefromberkeley
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Thanks. All makes sense to me, but Sailah above sounded like he knows what he is talking about and it sounded like he was recommending Li ion.
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Old 02-09-2012, 06:03 PM   #77
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lion batt

18650- I was looking at the battery junction sight and the 18650 lion batteries and charger caught my eye. Anyone here use these in a Surefire Aviator or others that use 2 of the CR 123 batteries?? How did you know if you needed the 3000mah or 2400 or whatever? Thanks

gofast1320 screwed with this post 02-09-2012 at 06:15 PM Reason: changed number of batteries from 3 to 2
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Old 02-09-2012, 06:14 PM   #78
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Fenix E11
http://www.fenixlight.com/viewproduct.asp?id=151

I was looking at this one earlier then stumbled across this thread. Any reviews?
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Old 02-09-2012, 07:13 PM   #79
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i didn't read through this entire thread, but i've ordered some stuff from dealextreme.com and was pretty happy.


I DO have the AAA version of the Fenix light that i keep on the 12GS at all times...

This is the light from Deal Extreme:

http://www.dealextreme.com/p/ultrafi...x-18650-103738

definitely in the 900 lumen range, built well, and good throw. $15, and more light than the $79 Fenix light we have.
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Old 02-10-2012, 08:04 AM   #80
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Quote:
Originally Posted by gofast1320 View Post
18650- I was looking at the battery junction sight and the 18650 lion batteries and charger caught my eye. Anyone here use these in a Surefire Aviator or others that use 2 of the CR 123 batteries?? How did you know if you needed the 3000mah or 2400 or whatever? Thanks
I am using one in my Fenix... forget the model but it takes 2 CR123's... first set of those I replaced it with the 18650. I'm pretty sure the rating (3000mah or 2400) is a reference to how long the battery will provide power before needing a recharge - capacity, not output.
No problems w/my lite.
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Old 02-10-2012, 08:39 AM   #81
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Quote:
Originally Posted by petefromberkeley View Post
Thanks. All makes sense to me, but Sailah above sounded like he knows what he is talking about and it sounded like he was recommending Li ion.
That's exactly why he can use Li ion without a problem.



Those are not for the average Joe. You have to understand the ins and outs and do your own research before using them.

Don't worry, it's not like playing with radioactive stuff but they still require some precautions because they are POTENTIALLY dangerous.

And yes, you need a dedicated charger and no, they won't fit in every flashlights.



You better stick with AA (LSD rechargeable like Eneloop) for now.
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Old 02-10-2012, 09:46 AM   #82
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Just ordered a Jetbeam Raptor after doing some looking around. I couldn't resist the 550 lumen output with a CR123A.
Should work out just fine. I'll post up my review if anyone is interested.
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Old 02-10-2012, 10:19 AM   #83
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Quote:
Originally Posted by nanotech9;17951367This is the light from Deal Extreme:

[URL
http://www.dealextreme.com/p/ultrafire-wf-501b-ssc-p7-cs-3-mode-900lm-white-led-flashlight-w-strap-1-x-18650-103738[/URL]

definitely in the 900 lumen range, built well, and good throw. $15, and more light than the $79 Fenix light we have.

That's a lot of bang for the buck. 900 lumens from a $15.00 light!
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Old 02-10-2012, 12:53 PM   #84
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This isn't anything fancy, but it's a way to continue using an older mini-maglite. 1 watt, 65 lumens, it's focusable. I bought one and use it daily.

http://www.cyberguys.com/product-det...roductid=48478
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Old 02-10-2012, 06:59 PM   #85
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right... theres two general numbers everyone is familiar with on batteries.. voltage, and mAh. mAh is milliamp HOURS... which is a measurement of energy storage(capacity) over time, not the amount of power (amps) a battery can deliver at once.


Theres another rating that most people dont get or see on batteries... its the discharge rate. an example would be that A123 LiFePO4 cells only hold a capacity of around 2300mah at 3.3v, but they have a DISCHARGE RATE of 70Amps nominal, and 120A peak.

http://www.espritmodel.com/a123-2300...s-lifepo4.aspx

as a good example, you could take 4 of these little cells, wire them up, and use them as a starter battery for the average bike. (my KTM 450 Supermoto would pull about 70-90 amps).

(note: don't confuse the A123 cells i used as an example with CR123 cells)


Now.... on all of these flashlights, the LED's are driven by smart circuits. Most will handle a narrow voltage range (anywhere from 1 or 2 volts range, to 5 or 10v or more). Because of the design of the LED, the driver circuit also limits the AMPERAGE going to the LED... some can handle a few hundred milliwats, some can handle 2 or 3 AMPS or more. the more the amps, the brighter the LED (mostly). Also, the more efficient the LED, the cooler it runs for the light it outputs.
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Old 02-10-2012, 11:01 PM   #86
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Originally Posted by nanotech9 View Post
Now.... on all of these flashlights, the LED's are driven by smart circuits. Most will handle a narrow voltage range (anywhere from 1 or 2 volts range, to 5 or 10v or more). Because of the design of the LED, the driver circuit also limits the AMPERAGE going to the LED... some can handle a few hundred milliwats, some can handle 2 or 3 AMPS or more. the more the amps, the brighter the LED (mostly). Also, the more efficient the LED, the cooler it runs for the light it outputs.
More food for thought here: http://club.dealextreme.com/forums/F...hreadid.530221

And there:

18650 cells shootout

Trustfire 2400mA Black (protected)
*Ultrafire XLS 2600mA Pink (protected)
*Ultrafire XLS 2600mA Green (not protected)
Ultrafire BRC 3000mA (not protected)
Ultrafire TR 2400mA (not protected)
Trustfire TR 2500mA (not protected)

*Same cell except protection circuit (or not)











You still need to look for flashlight circuit specs.
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Old 02-11-2012, 11:48 AM   #87
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Just ordered the Xeno 03 because of this thread. I just bought a 3 LED flashlight pack from Sams, guess I could give those away

I've always liked flashlights, ever since I was 3 years old. I always asked for a new flashlight for Christmas or my birthday. I haven't been much of a flashlight person since I grew up. Hopefully this won't become an obsession now that I ordered (what looks to be) a high quality flashlight.
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Old 02-11-2012, 11:59 AM   #88
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If you over discharge a 18650 Li Ion it they almost always short internally and fail. If it does come back the life and capacity are very much shortened.

If you overcharge an 18650 it will also fail, and can even catch fire in extreme cases. It takes special charger and protection circuits to be safe.

It has more energy than a common firecracker (not M80 or cherry bomb, just your common 1 1/2 inch), you do not let those go off in your hand, well, not more than once.

If you know what you are doing, they are great, they are not for everyone.

A123 does not have all these problems, they also have less energy.

Rod
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Old 02-11-2012, 01:51 PM   #89
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Originally Posted by ragtoplvr View Post
If you over discharge a 18650 Li Ion it they almost always short internally and fail. If it does come back the life and capacity are very much shortened.

If you overcharge an 18650 it will also fail, and can even catch fire in extreme cases. It takes special charger and protection circuits to be safe.

It has more energy than a common firecracker (not M80 or cherry bomb, just your common 1 1/2 inch), you do not let those go off in your hand, well, not more than once.

If you know what you are doing, they are great, they are not for everyone.

A123 does not have all these problems, they also have less energy.

Rod
It's why protected cells exist though.
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Old 02-15-2012, 09:40 AM   #90
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Just ordered a Jetbeam Raptor after doing some looking around. I couldn't resist the 550 lumen output with a CR123A.
Should work out just fine. I'll post up my review if anyone is interested.
Delivered today.

Nice piece of work. Drowns out my old el-cheapo 9 LED 3 AAA hardware store lights on its lowest setting. Great output! My only complaint is the adjuster ring is a bit too easy to turn and will probably self-adjust in my pocket. Should have detents.

I saw a review and it was stated that the CR123A>AA adapter was an extra bit that needed to be ordered separately. Came with my order along with spare O-rings, lanyard, pocket clip, and a switch boot.

I ordered from Battery Junction for the only reason being that they are close by and didn't shop around a lot so there may be better deals to be had but they did send me a coupon code for 5% off of my next purchase. Not sure if it's specific to me and how many times it can be used but if anyone wants it PM me. I'll post it if that's not against the rules.... Don't want to piss anyone off. I'll never use it. Got a dozen CR123A's with my order and fully expect them to last me a long time.
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