CR1225 is a popular non-rechargeable coin cell, It has a nominal voltage of 3V and a cutoff voltage of 2V. The negative electrode of CR1225 is lithium, while the positive electrode is manganese dioxide. It weighs 0.9g.
CR1225 has a capacity of ~50 mAh, a standard discharge current of 0.1 to 0.2 mA, a maximum continuous discharge current of 1 mA, and a pulse current of 5 mA. These values may vary with temperature.
CR1225 is 12.5 mm in diameter and 2.5 mm in height. The operating temperature range is between -20°C (-4°F) and 70°C (158°F). The shelf life of the CR1225 battery depends on its self-discharge rate (1-3% annually) and varies between 4-7 years.
NOTE: CR1225 doesn’t contain mercury, cadmium, and other toxic heavy metals.
What does CR1225 Stand for?
- “C” in CR1225 represents the chemical composition which is lithium as the negative electrode, manganese as the positive electrode, and organic as the electrolyte.
- The letter R indicates the shape of the battery (here ie, Round)
- The first two digits indicate the battery’s diameter in millimeters (here ie. ~12mm)
- The second two digits indicate the battery’s thickness (here ie. 2.5mm)
It’s easy to determine the positive and negative sides of this battery rough texture end is the negative terminal and the opposite flat surface is the positive terminal which is indicated on the battery as ‘+’.
CR1225 Equivalent batteries
CR1225 battery is equivalent to 5020LC, BR1225, DL1225, LM1225, L30, ECR1225, KCR1225, and KECR1225 coin cell. All these batteries have similar voltage and size.
It is worth noting that while these batteries can be replaced with CR1225, their chemical composition differs. As a result, their capacity and discharge rate will be different when compared to CR1225.
What is CR1225 used for?
CR1225 is widely used in many portable and small devices, such as:
- Digital thermometers
- Calculators
- Computer equipment
- remote controls
- Motherboards
- Toys
- medical scales
- heart rate monitors
- dog collars
- RTC(real-time clock) module
- Watches
CR1225 Battery Specifications
| Chemistry/ Composition | Lithium |
| Voltage | 3V |
| Diameter | 12mm |
| Thickness | 2.5mm |
| Weight | 0.9g |
| Capacity | Approx. 50mAh |
| Operating temperature | -20°C (-4°F) and 70°C (158°F) |
| Shelf life | 4-7 years |
FAQs on CR1225
Is BR1225 the same as CR1225?
Yes, BR1225 is the exact equivalent of CR1225 and can be replaced with it. They both have the same voltage and capacity. But BR1225 has slightly different chemistry as compared to CR1225, it has Carbon-monofluoride as a negative electrode.
Both batteries can be used for low-drain applications at room temperature, but CR1225 batteries are preferable for high-drain applications (like watches with LED lights and alerts). On the other hand, BR1225 batteries are a superior option for applications running at high temperatures.
What are the Safety Concerns of the CR1225 Battery?
- It can be ingested by pets and small kids and can cause harm to internal organs due to chemical leakage.
- These are non-rechargeable batteries. In case of forced charging, it may explode.
