Battery Apple PowerBook 100 CR2430-CF Energizer

The Energizer CR2430-CF is a 3V coin cell battery designed to replace the internal battery in the Apple PowerBook 100 and similar legacy devices. Engineered for long shelf life and stable voltage output, this battery provides reliable backup power for real-time clocks, memory retention, and low-drain electronic functions in older laptops and small electronics. Its compact coin shape and standard dimensions make it suitable for devices that accept a CR2430-sized cell.

Advantages

The battery delivers a steady 3V output and long shelf life—up to 10 years when stored under recommended conditions—reducing the need for frequent replacements. Its chemistry and design provide consistent performance in low-drain applications, while the coin cell form factor allows for simple, compact installation. The unit is compatible with devices that require a CR2430-size cell and is manufactured by a recognized brand in battery production.

Suitable for

• Apple PowerBook 100 internal backup battery replacement
• Real-time clock backup in legacy laptops and portable computers
• Low-drain electronic modules that accept CR2430 batteries
• Small consumer electronics and memory retention circuits

Key specifications

• Nominal voltage: 3V
• Cell type: coin/button cell (CR2430 size)
• Shelf life: up to 10 years under proper storage conditions
• Intended use: low-drain and standby power for electronics
• Form factor: compact coin shape suitable for CR2430 battery holders

How to use

Turn off and disconnect the Apple PowerBook 100 or other device before replacing the battery. Access the battery compartment or the internal battery holder following the device manufacturer's service instructions. Remove the depleted cell, observe correct polarity, and insert the new CR2430-CF battery with the positive side facing the indicated direction. Reassemble the device and verify that clock, settings, or memory functions are retained. Dispose of the removed battery according to local regulations for battery recycling.

Usage recommendations

Store unused batteries in a cool, dry place away from direct sunlight and heat sources. Avoid short-circuiting the terminals and keep batteries out of reach of children. For best long-term performance, replace internal backup batteries before they fully deplete to prevent data loss in legacy devices.