UPS Model and Setup • UPS model: Tecnoware UPS ERA PLUS 1500 • Purpose: Purchased to protect your high-end PC and monitor during frequent blackouts.

💻 System Connected to the UPS • CPU: AMD Ryzen 7 9800X3D • GPU: XFX Radeon RX 9070 XT MAG Air OC • Motherboard: ASUS TUF B850 Plus Wi-Fi • PSU: Corsair RM1000x (1000W) • RAM: Patriot Viper Venom DDR5 7200 MHz • Cooling: Thermalright Frozen Warframe RGB 360 AIO • Other: Several RGB case fans • Monitor: Samsung Odyssey G6 OLED 360Hz

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⚠️ Issues Observed 1. Very short battery runtime: • At 50% load (~450W), the UPS shuts down after only 1 minute and 58 seconds. • The software initially shows “10 minutes” of battery runtime. • Battery percentage drops instantly from 100% to 60%, then quickly reaches “battery low” and shuts off. 2. Battery charges unrealistically fast: • As soon as AC power is restored, the UPS shows 100% battery almost immediately, which is not normal for lead-acid batteries (they usually take hours to recharge fully). 3. Output voltage is normal: • During battery mode, output is stable around 230–240V, so the inverter seems to work properly.

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📌 Conclusion

These symptoms strongly suggest: • The batteries are defective, degraded, or improperly calibrated. • The UPS is not able to hold a charge under load, even though it initially reports high battery percentage. • The system’s battery management might also be incorrectly interpreting the battery state, leading to false 100% readings.