I hated my SF G2.........untill now.

[clipse]

-High pressure G90 (9v) lamp assembly
-Two rechargable unprotected 3.6 volt Litium Ion batteries
-and a Section8 CCS

This is what you get.



It will run for 20-25 minutes and will rival a 120 lumen P61 lamp.

Beamshots:

Stock G2 on left, Upgraded G2 on Right.


Hallway Shot Stock G2 on left, Upgraded G2 on Right.


And in case you are wondering what in the world the ring is for, I hold the flashlight like this (with a gun in the other hand)



I never really liked my G2. Mainly because of the weak LA. I had to call Surefire CS too many time about the crappy little P60 LA.

Enjoy.

clipse

 

[black bear]

Good idea Clipse,
Great pictures too.
For those that rather don't use the lanyard, Section 8 also makes a type of tiger ring that let you flip the light to the other side of your hand (the back) when you are reloading the pistol.

I use a regular hair tie or rubber O ring for my Tiger Rings.

As 123's are getting more expensive it makes a lot of sense to go to rechargeables, although with unprotected batteries you have to be carefully of not overcharging or over discharging them.

And please, when charging unprotected Lithiun Ion batteries do so in a fire-proof area (kitchen stove, glass table, fireplace etc).

black bear

 

[clipse]

I've decided that check the batteries periodically and recharge when they get to 3.7 volts.

clipse

 

[Vic303]

Blackbear, he's running unprot Li-Ion's not NiMh's, or did you actually mean Li-Ion in your post & just type NiMh by accident?

 

[ceetee]

I know this is a dumb question, but...

What does "unprotected" mean, applied to batteries? How are other batteries "protected?"

Does this apply to regular ol' over-the-counter rechargable batteries like you get at K-mart?

 

[black bear]

Vic303,
Good catch, yes I typed Nimhs by accident, I have already edited the post,
Thank you for bringing it to my attention.


ceetee,
Nimhs rechargeable don't need protection, but Lithiun Ion batteries are sold in two variations, protected and unprotected.
If you are using an unprotected battery by itself, (in a one battery flashlight) it is not much of a problem, you have only to watch that you don't over-discharge or overcharge it.

When you are running two unprotected batteries it is always a risk factor as one could end at lower voltage than another and the healthy one will try to recharge the other overheating the battery and causing a possible fire or explosion.

When using Li Ion in series is better to use protected batteries and leave the unprotected to the experimenters and guys that know the risk.

Protected meant that a protection circuit is installed in the tail of the battery that will cut off when the voltage is down (protecting from over-discharge) it also will cut-off when the voltage is reaching 4.2 volts (protecting from overcharging) and it will protect from shorts.
They also have thermal protection that will cut off when the batteries are too hot.

Regular Lithium 123's batteries also have this thermal protection that is why sometimes in a hot day the Surefire M-4 and sometimes the M-6 will stop working at 11 minutes. That is because the batteries get so hot that the internal protection cut the juice off.

My BEAR CUB and POLAR BEAR lights use protected Lithium Ion batteries, and at 220 and 426 lumens they are doing very well.
I can reach higher power levels of illumination on these lights by using unprotected batteries (much higher amperage) but the risk is too high to release these batteries to the general public.

People involved in RC racing or flying hobby planes are well versed in the way to charge the unprotected batteries, and they should have no problems with them.

Regards
black bear

 

[10-Ring]

Well done sir! Now that you have one that works to fit your need!