Lenovo 5B10S34059 CMOS battery is intended for Lenovo PC laptops. It is used in the laptop’s clock and settings backup circuit; replacement may be relevant if date and time settings are not retained.
The battery is rated at 3 V and has a charge capacity of 220 mAh. Its protective shell surrounds the battery and helps guard it against damage and accidental discharge.
This part is for laptop repair when the CMOS battery needs replacement. It is identified as a Lenovo laptop CMOS battery by part number 5B10S34059.