@ganew879: How to Calculate the Right Inverter & Battery Size for a Phone Charging Business Step 1: Calculate Total Load 100 Phones × 10W = 1000W 1 DC Fan × 40W = 40W 5 LED Bulbs × 10W = 50W 20 Power Banks × 15W = 300W 1 POS Machine × 10W = 10W Total Load = 1000 + 40 + 50 + 300 + 10 = 1400W Step 2: Add Safety Margin (25%) Inverter Size = 1400W × 1.25 = 1750W ✅ Recommended inverter: 3kW Pure Sine Wave Inverter (Provides room for startup surge and future expansion.) Step 3: Battery Sizing (8 Hours Backup) Energy Required = 1400W × 8 Hours = 11,200Wh (11.2kWh) Assuming: Battery DOD = 80% Inverter Efficiency = 90% Battery Capacity = 11,200 ÷ (0.8 × 0.9) = 15,556Wh ≈ 15.6kWh ✅ Practical Battery Size: 15–16kWh Lithium Battery ⚠️ Real-life power consumption varies. Not all phones and power banks charge at full power simultaneously, so actual backup time may be longer. #solartechnician #solarinstaller #solarbusiness #solarinstallation #fyppppppppppppppppppppppp

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Sunday 21 June 2026 12:10:24 GMT