Rechargeable Upgrade?

[flash_bang]

I was thinking of upgrading my G2 so it was a rechargeable. I want to run 3v li-ions that are 700mAh and Get a charger. I was thinking of getting this from Lighthound. two batteries and a charger are around 20 bucks. Not sure about shipping tho.

these are the links:
http://www.lighthound.com/index.asp?PageAction=VIEWPROD&ProdID=1158
http://www.lighthound.com/index.asp?PageAction=VIEWPROD&ProdID=2515

Just a couple questions first:
How long will this combo last? two of the batteries and the P60 bulb…
How bright?
How many cycles will the batts handle?
Does the charger "preserve" the batts by not overcharging/charging over discharged ones.

thanks for the help,
flash

ps, I'm tired so sorry if this info's somewhere else and I didn't see it

 

[flash_bang]

any ideas?

 

[XtreMe_G]

post number 4 here might help on the how many cycles part

 

[flash_bang]

awesome, but the batts I was looking at were 3 volts max voltage cuz I don't want to blow out my P60

have a good one
Flash

 

[flash_bang]

okay, now thinking about getting a leef 3x123/2x18500 body with the prereq of the 9v lamp and stuff. How are the 18500's compared to the 18650's? What have your experiences been with the automatic discharge in storage and the discharge curve in usage, especially with a high output lamp from lumens factory?
thank you very much!
have a good one,
Flash

 

[mdocod]

just pick up some of AWs high current protected RCR123s (the 3.7V veriety) and choose a 9V lamp that draws 1.5amp or less to run in your G2.

The idea of using 3.0V Li-Ions to drive 6V lamps has been brought up many times.

What happens is this.
either:
1. The cells will have protection circuits and won't power up the P60.
2. The cells won't have large enough voltage regulators to handle the current and the will go bad after a few cycles.
3. The P60 will burn out, instantly, or after a few cycles because the Li-Ion 3.0V does not sag under a load as much as the primary cells the lamp was designed for do.
4. The cells will not live up to their capacity rating at the level of power you demand from them, giving poor runtime (10-20 minutes)
5. You wish you had just started with the 9V configuration to begin with.

As for your later questions:
the Leaf body setups are great. Going for the 2x18650 configurations will let you run lamps like the P91 for about 45 minutes, the 18500s have about 35% less usable capacity in most configurations. 18650s will tend to run most lamps about 10% brighter than 18500s because the voltage won't sag as much.

Also consider Wolf-Eyes configurations if you want to use 18mm cells and don't want to spend $100-200 just for a host.

Li-Ion has a very steady discharge curve, their great for direct driving incans, they give plenty of useful output throughout the run, and usually finish out(protection kicks on) above 50% of starting brightness. You can top em off whenever you like, no memory effect, and the self-discharge is little to none. (expect less than 15% self-discharge in a year, much less in most cases)

 

[flash_bang]

Okay, thanks very much!
The thing that's kept me away from the 4x123 setup(2x18650's) is that I was thinking it won't be very pocketable. I think I'll need to see if I can fit an M4 in my pocket. BTW, I wear cargo pants most of the time, so that might be to my advantage. Are 18 mm cells the same as 2 123's? Sorry, not very good in metric. What do you think about me getting the 2x18650 body c tail m head, then an M turbo head? What's the difference between a regular bezel and a turbo head?

thanks very much!
have a good one,
Flash

 

[defusion]

just pick up some of AWs high current protected RCR123s (the 3.7V veriety) and choose a 9V lamp that draws 1.5amp or less to run in your G2.

The idea of using 3.0V Li-Ions to drive 6V lamps has been brought up many times.

What happens is this.
either:
1. The cells will have protection circuits and won't power up the P60.
2. The cells won't have large enough voltage regulators to handle the current and the will go bad after a few cycles.
3. The P60 will burn out, instantly, or after a few cycles because the Li-Ion 3.0V does not sag under a load as much as the primary cells the lamp was designed for do.
4. The cells will not live up to their capacity rating at the level of power you demand from them, giving poor runtime (10-20 minutes)
5. You wish you had just started with the 9V configuration to begin with.

As for your later questions:
the Leaf body setups are great. Going for the 2x18650 configurations will let you run lamps like the P91 for about 45 minutes, the 18500s have about 35% less usable capacity in most configurations. 18650s will tend to run most lamps about 10% brighter than 18500s because the voltage won't sag as much.

Also consider Wolf-Eyes configurations if you want to use 18mm cells and don't want to spend $100-200 just for a host.

Li-Ion has a very steady discharge curve, their great for direct driving incans, they give plenty of useful output throughout the run, and usually finish out(protection kicks on) above 50% of starting brightness. You can top em off whenever you like, no memory effect, and the self-discharge is little to none. (expect less than 15% self-discharge in a year, much less in most cases)

I totally agree with his suggestion.
as for size, surefire usually uses 17mm width, though the nitrolons might be different.

17500 = 1.5 times CR123 that always fits a surefire
17670 = 2 times CR123 that fits a surefire
18500 = 1.5 again, but 18mm width, so might not always fit
18650 = 2 times CR123, but also 18mm so might not always fit

 

[flash_bang]

okay, well, what if I get a 17670? will the output be comparable to the 18650? Why do most people use 18650's than 17670's? Would me using a 17670 in my G2 still power the P60 enough? What is this "voltage sag" you keep talking about?
sorry for my ignorance, but I'm really new to this rechargeable stuff

thanks so much! Have a good one,
Flash

 

[defusion]

okay, well, what if I get a 17670? will the output be comparable to the 18650? Why do most people use 18650's than 17670's? Would me using a 17670 in my G2 still power the P60 enough? What is this "voltage sag" you keep talking about?
sorry for my ignorance, but I'm really new to this rechargeable stuff

thanks so much! Have a good one,
Flash

the 18650 has about 50% more capacity (so longer runtimes, or able to drive higher current bulbs)
It also means it usually keeps at nominal voltage longer when running at the same current.

so in any case, get the 18650 if it fits, get the 17670 if it doesn't.

 

[flash_bang]

I see…thanks very much! I guess I'll need to measure to tube of my G2…I will post results when I get them!

have a good one,
Flash

RESULTS: well, I measured my battery, and it's around 15mm, the tube, however is just over 17mm, so I guess I'll get the 17670's. What bulb should I get for the 17670's? Any ideas would be greatly appreciated! Thanks!

 

[defusion]

one of the 3.7v ones from a 3rd party, don't have any experience with these.
but how about those 2x RCR123's? (2x3.7 = 7.4v) run it with a P90 lamp from SF, will work perfectly at 7,4v.

 

[flash_bang]

hmmmmm
I still want to just get one type of rechargeable battery, just for consistancy's sake.
have a good one,
Flash

 

[mdocod]

Go with a Lumensfactory HO-4 for about 45+ minutes runtime on 1x17670 with output comparable to the P60 (HO-4 is probably slightly brighter than P60, and more throw oriented)...

Go with a LumensFactory EO-4 for about 35+ minutes runtime on 1x17670 with about 25% more oomf in the output department.

Go with a G&P 3.7V lamp (available through many sources, I think AW sells em) for something in between.

or buy all 3 and compare, lol.