Optimus 4500+ Inverlast ILTT26060 Battery 220Ah Luminous Luminous HKVA Inverter for Home, Office & Shop with Luminous Battery, Optimus 4500+ Pure Sine Wave 4000VA,48 Volt Inverter with Inverlast ILTT26060 Tall Tubular 220 Ah- 4 Batteries Combo Optimus 4500+ Inverlast ILTT26060 Battery 220Ah Luminous User‑adjustable charging current: 8–21 A Output voltage range: 200‑240 V (UPS/ECO modes via LCD 10 ms switchover, full safety protections, digital display luminousindia.com 3‑year warranty on inverter 220 Ah capacity → 12 V × 220 Ah = 2640 Wh per battery Tall-tubulBattery Bank & Runtime Estimation With 4 batteries in series: Total capacity = 4 × 2640 Wh = 10,560 Wh ⏱️ Runtime estimates 200 W load: ~10,560 ÷ 200 = 52.8 h (ideal) Considering ~85% inverter efficiency: ~45 h For a 1000 W load: ~10.5 h ideal → ~9 h practical You can also adjust output voltage (via LCD) to either maximize runtime (200 V setting/ECO mode) or ensure appliance performance (UPS mode at ~230 V). ar design, orthogonal grid, large acid reservoir—engineered for heavy loads and frequent