Rechargeable equal to 3X123????????

[Mr.Shadow]

Does anyone know if there is a lithium ion rechargeable that would work in 3X123 lights?

 

[monkeyboy]

2 x 17500 sometimes works depending on the light. Its slightly wider than cr123 but still fits most lights.

 

[LED_Thrift]

Pardon me if this is just stating the obvious, but BatteryJunction among others sells cr123 3.0v cells that you could use. I use them in a three cell cr123 light that has a Luxeon V and they work fine. That light eats batteries pretty fast, puts out alot of light - now I get 'free' lumens.

 

[Strauss]

2x17500's will work in most lights...

 

[cratz2]

Yeah, if two 17500s will fit, that will give more usable power and longer runtimes, esp on higher drain lights, than 3x3.0V rechargeable cells. Those 3.0V cells are OK, but they are usually quite lacking in their stored power capacity. Two 17500s will typically run just as long as 3xCR123 cells which ends up being quite a bit longer than 2x3.7V R123 cells which is quite a bit longer than 2x3.0V 123 cells.

 

[LED_Thrift]

What voltage are the 17500 cells?

 

[AndyTiedye]

2 3.7's and a dummy cell may also be an option if the 17500's don't fit.

 

[kavvika]

17500, like most rechargable lithiums have a nominal voltage of 3.7, but ~4.2 hot off the charger. The reason they work in place of 3xCR123's is their voltage sags much less than primaries, so they might stay at 8.2 under load, while each of the lithium primaries might sag .3 volts, so 8.1 total.

 

[PYKE]

Would those 2X17500 fit in a SF M3?

 

[bagman]

Would those 2X17500 fit in a SF M3?

Ooh yes, free lumens

AW's protected 17500's will power up the MN11 with a single click for the first few minutes of run time

 

[PYKE]

OK, so, who makes the best, and where can they be bought?

 

[defusion]

Would those 2X17500 fit in a SF M3?

Matter of fact; i'm running this configuration right now!
You can run both bulbs (MN10, MN11), but you need to double-tap it with the MN11 (except when batteries are just of the charger).

I'm waiting for lumensfactory to come out with something just under 2.2amps for it, so i can get the most light without the hassle of double-tapping the switch, and without reducing the 17500's life significantly.

I use AW's batteries. He sells them in this thread: http://www.candlepowerforums.com/vb/showthread.php?t=140362