TI-30X MathPrint battery

[Matt Agajanian]

(11-14-2022 10:28 PM)rprosperi Wrote:  

(11-14-2022 10:10 PM)Matt Agajanian Wrote:  By the way, are CR-2016s and CR-2032s interchangeable? I’m not saying mixing the two, 2016 in one battety slot and a 2032 in the other slot.

They both have the same initial and operating voltage, but the capacity of the 2016 is much less. The 2016 is also much thinner, enough so that it may not meet all the contacts properly; it depends on how the battery 'socket' is made. Still, you should use the proper cells.

For these 'coin' cell batteries, typically labeled "CRXXYY"

XX is the diameter in mm
YY is the thickness in 10ths of mm

So, a CR-2032 is 20mm (2cm) wide and 3.2 mm thick.

So, you can see that the CR2016 is only half as thick as a CR2032

Damn clever battery model number scheme. Thanks! 2032 it is, then.