5B10S34090 - Lenovo Laptop CMOS Battery - Genuine

This Lenovo Laptop CMOS Battery (5B10S34090) is a genuine part specifically designed for Lenovo laptops. Compatible with various Lenovo models, this battery is crucial for maintaining your laptop's date, time settings, and BIOS configurations when the main battery is not in use. Commonly referred to as the "timekeeper" battery, it ensures that your laptop's essential functions are intact even when powered off.

A failing CMOS battery might be indicated by your laptop's inability to remember date and time settings, the frequent need for BIOS setup configuration upon startup, or erratic system behavior. If you're experiencing these symptoms, replacing the CMOS battery might be necessary to maintain the optimal performance of your laptop.

Please confirm your laptop's model number matches this part's compatibility before making your purchase.

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