The 787-871 is a lead-acid Absorbed Glass Mat (AGM) battery module for use in uninterruptible power supplies. It provides a nominal output voltage of 24 V DC with a capacity of 3.2 Ah and can deliver an output current of 20 A. This module features a built-in NTC K164 temperature sensor for monitoring and an internal 25 AT fuse for protection. It is designed to operate in ambient temperatures ranging from -10°C to +40°C. The module can be connected in parallel to increase buffer time and is compatible with WAGO 787-873 or 787-875 UPS controllers, providing a reliable power backup solution.