Coin cell battery RENATA CR2430 3V 285mAh lithium

RENATA CR2430 3V 285mAh lithium coin cell is a compact primary battery designed to deliver stable voltage and dependable performance for low-drain electronic devices. With a nominal voltage of 3 volts and a rated capacity of 285 mAh, this coin cell fits standard CR2430 holders and is intended for applications where long shelf life and reliable standby power are needed. The battery uses lithium chemistry to provide consistent output over extended storage and intermittent use.

Advantages

The RENATA CR2430 offers a long shelf life and low self-discharge characteristic, ensuring stored batteries retain usable charge after prolonged periods. Its steady 3V output supports accurate operation of timekeeping and measurement devices. The small, standardized coin form factor makes installation straightforward in compatible holders and devices. Lithium chemistry also yields a favorable energy-to-size ratio compared with alkaline button cells.

Suitable for

• Wristwatches and small timekeeping devices
• Calculators and handheld measuring instruments
• Key fobs, remote controls and car immobilizer systems
• Medical devices with low continuous draw (e.g., glucose meters, thermometers)
• Small electronics, memory backup and RTC modules

Key specifications

• Chemistry: lithium manganese dioxide (Li-MnO2)
• Nominal voltage: 3 V
• Rated capacity: 285 mAh (nominal)
• Cell format: coin / button, standard CR2430 dimensions
• Typical shelf life: multi-year storage with low self-discharge
• Operating temperature: suitable for normal consumer device temperature ranges

How to use

Install the coin cell with the positive (+) side facing the designated contact in the battery holder. Ensure contacts are clean and free of corrosion before insertion. For devices with a battery compartment latch or cover, secure the cover after installing the cell to maintain contact and prevent accidental dislodgement. Observe polarity markings on both the battery and device to avoid reverse installation. Dispose of used lithium coin cells according to local battery recycling regulations.

Usage recommendations

Store unused RENATA CR2430 cells in a cool, dry place away from direct sunlight and heat sources. Replace batteries in pairs or as specified by the device manufacturer when multiple cells are used. Avoid short-circuiting the cell terminals and keep batteries out of reach of children; seek immediate medical attention if ingested.