Battery Testing Battery testing is essential to assess the health, performance, and remaining life of your UPS batteries (like Amaron Quanta, Vertiv, Exide, etc.). Regular testing helps prevent unexpected failures during power outages. 🔋 Types of Battery Testing 1. Voltage Testing (Multimeter Test) Purpose: Checks open circuit voltage (OCV) of each battery. Tool: Digital Multimeter Ideal Voltage (12V battery): Fully charged: 12.6V to 13.0V Needs charging: < 12.4V Possibly faulty: < 11.5V 2. Load Testing Purpose: Measures battery performance under load. Tool: Battery Load Tester or Discharge Tester Method: Apply a load for 10–15 seconds and check voltage drop. Failing battery: Voltage drops rapidly below 10.5V during load. 3. Specific Gravity Test (Only for flooded batteries) Purpose: Measures acid strength inside the battery. Tool: Hydrometer Typical range: 1.265 (fully charged) to 1.120 (fully discharged) 4. Internal Resistance Testing Purpose: Detects internal deterioration of the battery. Tool: Battery Analyzer or Conductance Tester (like Fluke, Midtronics) Note: Higher internal resistance = aging battery. 5. Capacity Testing Purpose: Measures actual backup time under controlled discharge. Tool: UPS system itself or programmable electronic load Ideal result: Should deliver 80–100% of rated Ah capacity.