Brand: PKCELL
May also be known as: CR1025, DL1025, BR1025, KL1025, L1025, ECR1025, KCR1025, E-CR1025, KECR1025, 5033LC
Model: CR1025 Lithium Battery
Volt: 3V
Chemical Composition: Lithium
Shelf Life: 5 years (not printed on battery)
Diameter: About  10mm / 0.39"
Height: About 2.5mm / 0.01"
Conversion : 1mm = 0.0393 inch
Application:  welding helmet,welding hood,Laser Pointer Insulin Pumps, Heart Rate Monitor, toys ,Watches, Cameras, Calculators, Car Security Alarm, Keyless Car Remotes, Organizers, Computer Equipment (memory backup battery)
Note: 
A: Some customers are confused about model number. 
Different callings. For example, CR2032 is also called 2032 or ECR2032 or DL2032. Actually they are the same.
B: Sometimes we hear from customers that they bought wrong size for their devices. 
That's very understandable. Because those button cells are very small and look very very similar from pictures.
Voltage are all 3V. Material are all Lithium. The differences are dimensions.

Tip: The battery is named by dimension!  

CR1025   10(D)*2.5(H)MM