I have a device (reflex sight) that uses a single CR2032. But it kinda eats batteries like a fat kid eats free candy. (Not the fault of the device, I use it differently than intended.)
I can add an external battery, and my first thought was an 18650, because I own tons. But the 18650 has a significantly higher voltage, nominally 4v vs the 3v of a 2032. So that's out.
A 123a seems to have a similar voltage range of the 2032, and somewhere in the neighborhood of 5 times the Ah.
My gut feeling is that a 123a in a suitable holder would operate the device just fine. Am I thinking correctly?
I can add an external battery, and my first thought was an 18650, because I own tons. But the 18650 has a significantly higher voltage, nominally 4v vs the 3v of a 2032. So that's out.
A 123a seems to have a similar voltage range of the 2032, and somewhere in the neighborhood of 5 times the Ah.
My gut feeling is that a 123a in a suitable holder would operate the device just fine. Am I thinking correctly?