01HY008 Lenovo CR2016 RTC battery, 3V, Lithium Manganese Dioxide, compatible with Lenovo ThinkPad models for CMOS power. 791434 UN3090 - Lithium METAL CR2016 RTC battery, 3V, Lithium Manganese Dioxide, compatible with Lenovo ThinkPad models for CMOS power.Ensure the optimal performance of your Lenovo laptop with the high-quality RTC/CMOS Battery. Designed specifically for select ThinkPad models, this CR2016 lithium manganese dioxide battery delivers consistent power at 3 volts, ensuring reliable storage of your device's basic configuration and settings. Whether you're working on an x1 Carbon, x1 Yoga, or x390, this battery guarantees seamless operation and stability.Lenovo, a renowned name in the computing industry, manufactures this durable battery to mstrict reliability standards, characteristic of their premium ThinkPad series. Depend on superior engineering that enhances your laptop's longevity and functionality.Available through a trusted partner in IT solutions, you can rest assured that your Lenovo RTC/CMOS Battery is an authentic product, backed by expert support and extensive knowledge in the field.