IBM 02K7078 | RTC Backup Battery for ThinkPad R50 R51 X30 X31

Technical Specs:
- Compatibility: ThinkPad R50, R51, X30, X31
- Battery type: Lithium coin cell battery
- Voltage: 3V
- Capacity: 200mAh
- Dimensions: 20mm x 20mm x 3.2mm
- Weight: 2g

Helpful Notes:
1. This backup battery is essential for maintaining the Real Time Clock (RTC) in your ThinkPad.
2. It is a small and lightweight battery that can be easily replaced by the user.
3. Make sure to follow proper handling and disposal procedures for lithium batteries.