The PMS26 is a common battery model used in various electronic devices. While it might be considered obsolete, it's important to evaluate its actual capacity before replacing it.

The "PMS26 Obsolete battery but still enough capacity" message on a KUKA robot indicates that the backup battery used for the controller's memory or real-time clock (RTC) is nearing the end of its expected lifespan, but still has sufficient charge to operate correctly for the time being.

What Does This Mean?

• Obsolete Battery: This warning suggests that the battery is old and may not hold its charge for much longer. Even though it currently has enough capacity to maintain the system’s memory or RTC during power-offs, it is recommended to replace it soon to avoid potential data loss or system errors.

• Sufficient Capacity: Despite the battery being labeled as obsolete, it still has enough charge to function. However, this is a precautionary alert indicating that the battery should be replaced before it fully depletes.