20260616_FSR_CreechAFB_Bldg64_UPS2_Redacted.pdf

This is a Battery Test Report for a UPS (Uninterruptible Power Supply) system dated June 16, 2026, documenting inspection and testing results for equipment located at Creech Air Force Base, Nevada.

The report covers UPS-2 in Building 64 at Creech AFB, an Eaton 93PM-L-80 unit (Serial Number EN205UJJ02) with 50 KVA and 50 KW capacity. The system contains two battery strings, each with 40 batteries (80 total) manufactured by C&D as model UPS12-400MR with 103 Ah capacity and 2.5 mOhms internal resistance, dated March 2019. Testing was completed with the UPS on-line and in by-pass mode, with the job marked complete and procedures present. The overall UPS inspection results indicated passing air filters, failed batteries (String #2, Battery #21 positive post corroded), and passing fans. Parts required include 80 units of Data Safe/12HX400-FR replacements. Voltage checks, output performance, and KW measurements all passed acceptable parameters during inspection, with total system output measuring 19.2 KW across phases.

The detailed mOhm-Volts tables and diagnostic diagrams for both battery strings provide individual battery performance data. Battery String #1 shows 40 of 40 batteries tested with mixed results (passes, warnings, and failures marked as voltage or resistance issues). Battery String #2 similarly documents all 40 batteries with numerous failures concentrated in voltage measurements and resistance anomalies, indicating significant degradation requiring battery replacement. The failure patterns and resistance diagrams visually document the deteriorating condition of String #2 batteries compared to String #1 performance.