Which 17500 size batteries to use with surefire MN11

[defusion]

The MN11 draws about 2.5Amps with 2 Li-Ion batteries, and i want to fit it in a surefire M3 (3xCR123 size).
I already posted the question in the incan. forum, but i suspect i should've posted it here.


Now I'm wondering which batteries i should use with it that will last long enough to be cheaper then using regular CR123's.
So basicaly i want to know which 17500's can draw 2.5Amps, and not die to quickly. And do i need unprotected cells, or will the protected ones work just fine with these high currents?

 

[Flash007]

Actually, none 17500 cell can draw 2,5A safely.
Only 18500 (protected is better) cells can deliver up to ~2,8A.

AW sells protected 18500 cells (1500 mAh).
For use with you M3 body, from factory you can't. Body inner diameter is 17mm, and 18500 protected cell is about 18,5mm.

You can bore the body, or buy one of the Leef body @Lighthound for Surefire, wich is OK to fit 18500/18650 inside. But it isn't cheap ($60 I think).

Or, you can buy a complete Wolf-Eyes flashlight (9AX Raider $45) and put inside the P91 module + 2x18500 cells with no problem.

Wolf-Eyes flashlights accept from factory large diameter cells (18,5mm). A good point for me.

 

[defusion]

Actually, none 17500 cell can draw 2,5A safely.
Only 18500 (protected is better) cells can deliver up to ~2,8A.

AW sells protected 18500 cells (1500 mAh).
For use with you M3 body, from factory you can't. Body inner diameter is 17mm, and 18500 protected cell is about 18,5mm.

You can bore the body, or buy one of the Leef body @Lighthound for Surefire, wich is OK to fit 18500/18650 inside. But it isn't cheap ($60 I think).

Or, you can buy a complete Wolf-Eyes flashlight (9AX Raider $45) and put inside the P91 module + 2x18500 cells with no problem.

Wolf-Eyes flashlights accept from factory large diameter cells (18,5mm). A good point for me.

I believe there aren't any leef body's for 2x18500 and an M-head.
My alternative is getting a body extension and run 17670's (about 18500 capacity), or getting a 2x18650 body. Maybe's i'll do both so i can choose a different lego-setup every so often.

 

[BargainMonkey]

AW's latest 17500s would be able to power it. It's higher than the recommended 2C discharge so it isn't recommended, but it isn't bad enough to be dangerous. You're just going to reduce the life of the batteries. The best solution would be what was already recommended, bore it out for 18500s or add an extension for 17670s.

 

[defusion]

AW's latest 17500s would be able to power it.

would that be the protected ones aswell?

 

[BargainMonkey]

The protected ones will work. You shouldn't have to double-click with them. With mine I can light a P91 with a single click as long as they have a full charge. If they have a fairly low charge I sometimes have to double-click them. I have been using them with a P90 mostly, though. Although they will work with the P91, I prefer to add an extension and use 2 of AW's protected 17670s. It's definitely easier on the batteries and it lasts longer.

 

[defusion]

The protected ones will work. You shouldn't have to double-click with them. With mine I can light a P91 with a single click as long as they have a full charge. If they have a fairly low charge I sometimes have to double-click them. I have been using them with a P90 mostly, though. Although they will work with the P91, I prefer to add an extension and use 2 of AW's protected 17670s. It's definitely easier on the batteries and it lasts longer.

alright, i'll get the extention and have both types of batteries.
at least i know it'll work (and i can always run the MN10 aswell)