मुफ्त इन्वर्टर साइज़िंग कैलकुलेटर
सही इन्वर्टर क्षमता (VA/Watt) निकालें। लोड सूची दर्ज करें।
Battery Life
11.3 hours
Battery Life vs Battery Capacity
सूत्र
## Battery Life Estimation ### Formula **Life (hours) = Capacity (mAh) x Efficiency / Load (mA)** Efficiency accounts for losses from the battery internal resistance, DC-DC conversion, and temperature effects. Typical Li-ion efficiency is 80-90%.
हल किया गया उदाहरण
2000 mAh battery, 150 mA load, 85% efficiency.
- 01Usable capacity = 2000 x 0.85 = 1700 mAh
- 02Life = 1700 / 150 = 11.3 hours
- 03Life in days = 11.3 / 24 = 0.47 days
अक्सर पूछे जाने वाले प्रश्न
Why not 100% efficiency?
Internal resistance, voltage regulator losses, and self-discharge reduce usable capacity. Real-world efficiency is typically 80-90%.
Does discharge rate affect capacity?
Yes. Higher discharge rates reduce effective capacity due to Peukert effect, especially in lead-acid batteries.
How do I measure actual load current?
Use a multimeter in series or a USB power meter. Average the current over a typical usage cycle.
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