batteries for Inova XO?

[Haz-mat]

Can I use an Ultrafire 18650 Li-ion rechargeable battery instead of the 123s batteries in a Inova XO? If not are there other batteries that I can use or do I have to stick with the 123s?

 

[Outdoors Fanatic]

Can I use an Ultrafire 18650 Li-ion rechargeable battery instead of the 123s batteries in a Inova XO? If not are there other batteries that I can use or do I have to stick with the 123s?

They will not fit.

 

[yellow]

You could try:
17650 ... might fit, no guarantee. Maybe not enough voltage for the driver
2*CR123a ... rechargeable CR123 Li-Ions. Have more voltage than CR123 primaries, with high degree will not have bad effects (but could fry driver, when it cant stand the + in voltage)