Lithium Battery Panasonic BR‑C ULF 3V 5000mAh – Long‑life Coin Cell

Panasonic BR‑C ULF is a lithium coin/flat cell providing 3V nominal voltage and 5000mAh capacity in a compact form factor intended for long‑term power in low‑drain and backup applications. The cell uses stable lithium chemistry designed to deliver consistent voltage over long storage and operating periods, making it suited for memory backup, real‑time clocks, sensors and other small electronics that require reliable standby power and long shelf life.

Advantages

The battery delivers a high energy density relative to its size, ensuring extended service life in devices with low continuous current draw. Its stable output voltage supports sensitive circuits and memory retention without significant voltage sag during typical standby use. The construction resists self‑discharge to provide a long shelf life and dependable performance after storage. The flat coin profile allows flexible mounting in compact housings where cylindrical cells are unsuitable.

Suitable for

• Memory backup (CMOS/RTC backup) in electronic modules
• Real‑time clocks and timekeeping devices
• Sensors and wireless transmitters with low average current draw
• Small electronic instruments, measuring devices and test equipment
• Standby power in industrial controllers and communication modules

Key specifications

• Nominal voltage: 3 V
• Rated capacity: 5000 mAh (typical, for low‑drain conditions)
• Cell type: lithium coin/flat cell
• Chemistry: lithium (long‑life, low self‑discharge)
• Intended use: low‑drain and standby applications
• Operating temperature range: suitable for typical indoor electronics (consult device specifications for extremes)

How to use

Install the cell into the device battery holder observing correct polarity and secure mechanical contact. For devices with solder tabs or dedicated battery connectors, follow the device manufacturer’s instructions to avoid heat damage or improper connection. Replace the cell before end‑of‑life indicators appear or when the device shows memory loss, timekeeping errors, or reduced transmission range. Store unused cells in a cool, dry place away from direct heat and metal objects to prevent short circuits.