RTC Battery Lenovo 01AW187 3.0V 2200mAh coin-cell replacement for real-time clock

Replacement RTC battery Lenovo 01AW187 provides a stable 3.0V nominal voltage and 2200mAh capacity to maintain the real-time clock and BIOS settings when the main power source is removed. The cell is intended as a coin-cell style backup power for compatible Lenovo laptops, motherboards and embedded systems that require continuous timekeeping and small memory retention. The design focuses on long shelf life and consistent output to ensure system configuration and clock continuity over extended periods without external power.

Advantages

This RTC battery offers a high capacity for a coin-style backup cell, enabling extended backup duration for RTC and CMOS memory. The steady 3.0V output supports reliable timekeeping and reduces the risk of system clock drift. Its compact form factor allows straightforward replacement in systems that accept compatible coin-cell RTC batteries. Manufactured to meet typical quality expectations for computer backup batteries, it is suitable for long-term standby use.

Подходит для

• Lenovo laptops and notebooks compatible with coin-cell RTC replacements
• Desktop motherboards and embedded devices that require a 3.0V RTC backup cell
• Maintenance and repair tasks where BIOS/UEFI settings and system clock continuity must be preserved

Key specifications

• Nominal voltage: 3.0V
• Capacity: 2200mAh
• Form factor: coin-cell style backup battery
• Intended function: real-time clock (RTC) and CMOS/BIOS settings backup
• Typical applications: laptops, motherboards, embedded systems

How to use

Power down the device and disconnect external power before replacing the RTC battery. Locate the RTC battery holder on the motherboard or within the laptop service compartment, remove the old battery carefully using non-conductive tools if necessary, and insert the replacement cell observing the correct polarity. After installation, reconnect power and verify the system clock and BIOS/UEFI settings; adjust time and date if required. Follow the device manufacturer’s service instructions for safe access and handling.

Usage recommendations

Store the battery in a cool, dry place and avoid exposure to high temperatures or humidity. Replace the cell when system time begins to drift or BIOS settings are lost after power removal. Dispose of used batteries according to local regulations for battery recycling. If uncertain about compatibility, consult device documentation or a qualified technician before installation.