CR2025 Battery 3V for Compact Electronic Devices

The CR2025 Battery 3V is a primary lithium coin cell designed for compact electronic products that require a small battery compartment, a 3.0V nominal voltage, and low-current operation. It uses lithium manganese dioxide chemistry, commonly written as Li/MnO₂, and must not be recharged.

This CR2025 battery has a nominal capacity of 160mAh. The capacity is evaluated using a 15kΩ load, continuous discharge, and a 2.0V cut-off voltage under the specified test temperature. Its calculated nominal energy is approximately 0.48Wh.

The battery measures 20.0mm in diameter and 2.5mm in height. Its thin coin-cell structure supports installation in key fobs, compact remote controls, memory backup modules, calculators, electronic labels, small sensors, and other space-limited products.

Electrical Performance of the CR2025 Battery

The CR2025 3V battery provides a nominal voltage of 3.0V. This does not mean the battery delivers a regulated or constant 3V output. Actual terminal voltage changes according to load current, remaining capacity, operating temperature, contact resistance, and device cut-off voltage.

Under the current Zenilove test conditions, the initial standard discharge duration is 840 hours using a 15kΩ load at 20°C to 25°C until the battery reaches 2.0V. This is a laboratory discharge result and should not be presented as the guaranteed operating time of a finished device.

The listed instantaneous short-circuit test current of at least 250mA, measured for no more than 0.5 seconds, is a factory inspection value. It is not a rated continuous current or recommended pulse current for equipment operation.

Before using the CR2025 lithium battery in a device, confirm:

• Average operating current
• Standby current
• Pulse-current duration
• Recovery interval between pulses
• Minimum equipment voltage
• Contact resistance
• Expected service life
• Operating temperature
• Discharge cut-off voltage

Device-level testing should be completed before mass production.

CR2025 Coin Cell Battery Size and Device Integration

The CR2025 coin cell battery has a standard diameter of 20.0mm and a height of 2.5mm. It is thinner than a CR2032 cell, which has the same nominal diameter but a greater height.

Projects with more installation depth and higher energy requirements may also evaluate a CR2032 battery. A CR2032 should not replace a CR2025 automatically because the battery compartment, contact pressure, holder depth, and product enclosure may not support the thicker cell.

Before choosing between CR2025 and CR2032, check:

• Battery-holder dimensions
• Available installation height
• Required operating time
• Average and pulse load
• Terminal contact pressure
• Enclosure clearance
• Product weight limits

The positive terminal is the marked upper surface, while the lower surface acts as the negative terminal. The cell must be installed according to the polarity marking on the equipment.

CR2025 Lithium Battery Safety and Storage

The CR2025 lithium battery is a non-rechargeable primary cell. Do not recharge, short-circuit, crush, puncture, disassemble, heat, burn, or install it with reversed polarity.

A standard bare coin cell should not be soldered directly using uncontrolled heat. Products requiring PCB installation should use an approved battery holder, solder-tab version, terminal assembly, or preassembled wire-lead configuration.

Store the battery in a dry and ventilated environment away from direct sunlight, high humidity, heat sources, and conductive metal objects. The current page lists a self-discharge rate of no more than 5% after 12 months under normal temperature and humidity conditions.

Product design, battery marking, testing, child-resistant packaging, and misuse prevention should be reviewed against the applicable IEC 60086-4 safety requirements. Coin cells must be kept away from children because swallowing can cause severe internal injury.

Applications for the CR2025 3V Battery

The CR2025 3V battery is mainly intended for devices with low average power consumption and controlled pulse requirements.

Typical applications include:

• Vehicle key fobs
• Remote controls
• RTC and CMOS memory backup
• Calculators
• Electronic labels
• Digital thermometers
• Small measuring instruments
• Security sensors
• IoT sensor nodes
• Compact monitoring devices
• Fitness and wearable electronics
• Electronic modules

Application suitability depends on the complete electrical load profile. Products with frequent wireless transmission, bright displays, alarms, motors, or extended high-current pulses may require additional testing or a different battery model.

Custom Supply from a CR2025 Battery Manufacturer

As a CR2025 battery manufacturer and supplier, Zenilove can evaluate different terminal, assembly, labeling, and packaging requirements for OEM projects.

Available customization options may include:

• Standard bare CR2025 cells
• Horizontal solder tabs
• Vertical solder tabs
• Axial or radial terminals
• Wire leads
• Custom connectors
• Coin-cell holders
• Insulation sleeves
• Custom polarity markings
• Private-label printing
• Tray packaging
• Blister packaging
• Individual packaging
• Lot and date coding
• Project-specific inspection requirements

Before sample development, provide the device operating current, pulse profile, battery-holder drawing, available space, terminal direction, expected service life, operating temperature, packaging requirements, annual quantity, and target-market documentation.