Rome Tech BIOS CMOS battery best suits to replace your broken or non-working old battery - we provide premium quality only CR2032 laptop battery COMPATIBLE with Lenovo ThinkPad P51 / Lenovo ThinkPad P52 / Lenovo ThinkPad P70 / Lenovo ThinkPad Yoga 15 / Lenovo ThinkPad Yoga 260 Enjoy extended reliability of the RTC Lenovo P51 battery and heat shrink of a high caliber - the CMOS laptop battery will last you for a long time The size of the CMOS battery is extremely small - will fit in almost any electronic device requires 3V Battery connector with 2 pins and 2 wires Quick and simple battery installation takes only 10 minutes of your time. Try our customer service for resolving any issues during battery replacement