For sale is a PVS-31D external battery pack with splitter cable, configured for use with PVS-31D night vision systems and ECOTI integration. The battery pack is fully functional and provides extended runtime compared to onboard battery operation. The included splitter cable allows simultaneous power distribution to compatible night vision devices and ECOTI systems, helping reduce battery changes during extended use. Included: PVS-31D External Battery Pack Splitter Cable for NVG/ECOTI Configuration Condition: New Fully functional No cracks or damage affecting operation Features: Extended operational runtime Remote battery mounting capability Compatible with PVS-31D systems Supports ECOTI integration with included splitter cable Ideal as a spare, replacement, or backup setup Please review all photos carefully for condition details.