Battery Advice for two lights (CR123's to rechargeables)

[TriChrome]

This is my first post, but I've been reading/researching for about two weeks now and think I've picked out the correct batteries; but I would still like a second opinion to make sure I'm getting the best combination of lumens and run time for my two lights.

My first light is a Surefire 6P with a Detonator +1 cell extender (3x CR123's/9 volts). I'm currently running a P91 bulb which give me 200 lumens for 20 minutes.

I'm looking at getting 2x 17500 Protected cells (with a 1.6mm spacer):
http://www.lighthound.com/index.asp?PageAction=VIEWPROD&ProdID=1299

To run a Lumens Factory HO-9 320 lumen bulb. I was told this would give me about 40 minutes of runtime on the above batteries. Is there any better combination? And am I really going to get 40 minutes of runtime?
___________________________

The second light is a G&P (Surefire 6P clone) with a CREE LED (3.7v to 9v) bulb with G&P A.I. Strobe tailcap. I want to convert this to rechargeables using 2x R123 protected cells:
http://www.lighthound.com/index.asp?PageAction=VIEWPROD&ProdID=2190

I was told this would give me about 80 lumens for 90 minutes. Again, any better setup for something like this?

I'll be using an Ultrafire Multi-Battery Charger for both sets of batteries.

Thank you for any advice.

 

[FlashKat]

Just make sure the 17500's protection circuit does not kick in, and prevent it from lighting the HO-9. Carefully read the paragraph taken from the description.
"Protected lithium rechargeable batteries are very safe for use with any type of flashlight as long as it is compatible with the voltage that they provide, but they are generally better for LED flashlights."

 

[TriChrome]

I emailed lighthound and he said they would work fine on the HO-9, and that it should give around 40 minutes of runtime but they have never tested the runtime so he can't be sure. If they don't work I can always return them and try the unprotected cells (but I'm worried about shorting them out since I've never used either before).

 

[FlashKat]

From Mdocod's link: http://www.candlepowerforums.com/vb/showthread.php?t=161536
Another topic link: http://www.candlepowerforums.com/vb/showthread.php?t=169291

Cell configuration: 2x17500

Bulb Options:
LF D26 ES-9: 7.5W, 70 min, 125 lumen
LF D26 SR-9: 9.5W, 50 min, 155 lumen
LF D26 HO-9: 12W, 35 min, 215 lumen
LF D26 EO-9: 15W, 20 min, 245 lumen
SF P90: 9.5W, 50 min, 145 lumen
G&P G90: 9.5W, 50 min, 145 lumen
G&P D26 7.4V "DX 10W xenon": 9.5W, 50 min, 155 lumen (totally unconfirmed)
G&P D26 7.4V "DX 15W xenon": 11W, 40 min, 195 lumen (totally unconfirmed)
Pathfinder P90: 10.5W, 45 min, 170 lumen
WE D26 9V: 10.5W, 45 min, 180 lumen
Pila GL3 LA: 10.5W, 45 min, 180 lumen

Body Options:
Leefbody 2x18500 w/C tail and head, +SF compatible tail-cap/bezel. +++
Surefire [G2, 6P, C2, Z2, G2Z, M2] +1 cell extender ++(some extenders fit 17mm cells, some don't)
Surefire G3, 9P, C3, +++
Wolf-Eyes 9 series Raider (non-turbo) +++
Ultrafire/Superfire 3 cell: WF501C, WF502C, ++(some rare UF heads don't fit LF lamps)
Cabellas XPG 9V 3 cell +++
G&P 9P, T-9 +++
Pila GL3 ++

I emailed lighthound and he said they would work fine on the HO-9, and that it should give around 40 minutes of runtime but they have never tested the runtime so he can't be sure. If they don't work I can always return them and try the unprotected cells (but I'm worried about shorting them out since I've never used either before).

 

[TriChrome]

Thank you for that link; I've read through that before. What confuses me is the "LF D26 HO-9: 12W, 35 min, 215 lumen" line. If I'm using the HO-9 bulb, isn't it rated for 320 lumens at 9 volts? Why would I only get 215 lumens out of it? I might as well run my standard P91 bulb I already have...

I take it I'm missing something since I'm new to all this.

 

[FlashKat]

I can't really say why he has it posted like this, but my closest guess is that he may be listing it as torch lumens instead of bulb lumens.
General rule is that you take bulb lumens "320" lumens and multiply by .65 to get torch lumens. 320 X .65= 208 torch lumens...I know it's 7 lumens than what is stated, but it's a guess.

Thank you for that link; I've read through that before. What confuses me is the "LF D26 HO-9: 12W, 35 min, 215 lumen" line. If I'm using the HO-9 bulb, isn't it rated for 320 lumens at 9 volts? Why would I only get 215 lumens out of it? I might as well run my standard P91 bulb I already have...

I take it I'm missing something since I'm new to all this.