Is a cr2032 battery compatible with a cr2025 battery?

Yes, a CR2032 battery is compatible with a CR2025 battery in terms of voltage and size; both are 3V lithium coin cells. However, the CR2032 is thicker at 3.2 mm compared to the 2.5 mm thickness of the CR2025. This means that while the CR2032 can fit in some devices designed for a CR2025, the reverse may not always be true due to the extra thickness. Always check the device specifications before substituting batteries.