I have a device that uses CR2 batteries. I was wondering if there is a rechargeable battery that matches the CR2 in dimensions and voltage?
There are rechargeable RCR2 3.0v & 15266 Li-Ion 3.6v. No idea who is making quality ones these days.
Those chargers you may find try to recharge lithium primaries and often the batteries burn or got very poor quality rechargable cells
There are LiFe 3.2V batteries that are fully charged 3.6V
Search for IFR15270 200mAh and get a proper charger that can charge em at 100mA
Any capacity greater than 200-250mAh advertised is fake
There are ICR/IMR 15270 at about 400mAh and 3.7/4.2V
Efan for example
These are 3.0v. I need them for a Laser Range Finder, so I am not sure how forgiving the voltage range is.
I have an I4 intellecharger. If you guys can link me to an appropriate battery, I would be grateful.
Not sure but usually a good rangefinder should handle a higher voltage from lithium rechargable batteries
As those have a relative low capacity you have to charge em at a low current no mote than 1C
IFR here
This link works:
http://www.sz-worldsales.com/goods-576-Top+quality+EFAN+IMR15270+400mAh+37V+LiMn+button+top+battery(2pcs).html
Intresting shop !
They also have IMR26500 
(C-cell)
Speaking of CR2, does anyone remember a manufacturer that makes (or made) lights in that platform? The best I remember is the 47s (back when they were seen as the big dog’s biscuit) with their Mini CR2 (later named Mini MLR2), which was brought to my attention by a size comparison in the “flashlight” Wikipedia page 