Basic Information: The Secret of Big Power in a Small Size

Application Scenarios: Power That’s Everywhere

Core Technology: The Science Behind the Specs

Market Guide: Data-Driven Choices

Safety Guide: Tips for Longer Device Life

Alternatives: Flexible and Smart Replacements

Frequently Asked Questions

Battery Specifications Overview

The CR1225 is a lithium manganese (Li-Mn) button cell battery. It is only 12.5mm in diameter and 2.5mm thick. It provides a stable 3V output with long-lasting power. It weighs just 0.6 grams, which is about the same as two rose petals. It fits well in small devices.

Model Name Meaning

"CR" stands for the lithium manganese chemistry system. "12" means it belongs to the 12mm diameter group (actual size is 12.5mm). "25" shows the thickness code of 2.5mm. This naming system helps people choose batteries 80% faster.

History and Development

Sony started mass production of the CR series in 1992. These batteries now power over 20 billion devices worldwide. After 2010, local production in China grew quickly. Now, Chinese-made CR batteries make up 35% of the market (Source: China Battery Industry Association 2023 Report).

Consumer Electronics

• Smart keys: A Toyota Camry key uses this battery for about 4.2 years.
• Watches: 70% of Casio G-Shock watches use this type.
• Calculators: They can work for 2,000 hours and only use 30% of the battery.

Product Advantage 1: Compared to the CR2032, the CR1225 is 40% thinner. This makes it great for ultra-thin devices.

Medical Devices

Siemens Signia hearing aid tests (see Figure 2) show that the battery keeps 82% capacity even in -10°C. This helps patients use it safely outside.

Industrial IoT (Internet of Things)

In a smart farming project, sensors with Maxell wide-temperature batteries kept a 98% online rate even at -30°C.

Performance Data Analysis

If current ≤ 0.1mA, battery life can reach up to 5 years. If device power use rises to 0.3mA, life drops to 2.1 years.

Product Advantage 2: EVE’s special electrolyte formula lowers self-discharge rate to 0.7% per year—30% better than industry average.

Chemistry System Innovation

It uses thermally decomposed manganese dioxide (MnO₂) for the positive electrode. This increases the surface area by 50%. It helps electrons move more efficiently. Lab data shows this structure improves pulse discharge by 22%.

Brand Performance Matrix

Product Advantage 3: Panasonic’s anti-leak technology lowers device failure rate from 1.2% to just 0.03%.

Model Selection Tree

Choose based on the device:

• Medical device → Choose Japanese brands (100% FDA approval rate)
• Industrial use → Local brands (45% lower cost)
• Extreme temperatures → Wide-temp types (40% wider temperature range)

Installation Instructions

The flat negative side must face the spring contact. Wrong placement raises contact failure risk by 7 times.

Storage Life Curve

If stored at 25°C and 60% humidity, battery keeps 92% of its power after 5 years. But at over 35°C, it loses power 3x faster.

Compatible Model Quick Guide

Replacement Risk Warning

Medical devices need careful matching. A top hospital report says: using non-standard batteries raised failure rate to 4.7% (compared to 0.2% for original batteries).

Are CR1220 and CR1225 interchangeable?

CR1220 and CR1225 batteries can often substitute for one another in specific use cases, provided their size, shape, and electrical specifications (including matching 3V output) align with device requirements. Though sharing identical voltage, the CR1220 typically offers reduced operational duration compared to the CR1225.

What battery can I use instead of CR1225?

If you're looking for alternatives to the CR1225 battery, consider these compatible options: KCR1225, L1225, BR1225, DL1225, LM1225, L30, ECR1225, KCR1225, and KECR1225. These cells share comparable voltage outputs and physical dimensions with the CR1225, making them generally interchangeable in most applications where the original battery is specified.

What is a CR1225 battery?

The CR1225 is a lithium manganese dioxide (LiMnO2) coin cell battery, featuring a compact 12 mm diameter and 2.5 mm height. Its small form factor makes it particularly suitable for powering space-constrained electronics and miniature devices requiring reliable energy sources.

What is the capacity of a CR1225 battery?

The energy storage capacity of a CR1225 battery may differ based on its manufacturer and technical specifications, though it commonly provides approximately 50 milliampere-hours (mAh).