輸入參數
可編輯的範例值估算結果
即時計算結果備用供電 · 小時
6.79 小時
DC · 電能
7.68 kWh
用電量 · 功率
1,131.11 W
這些結果供初步規劃使用。選購設備前，請核對計算假設。
系統不會自動取得位置或電價，計算以您輸入的資料為準。
如何使用這個計算工具
填寫電池容量、目前電量和負載功率。結果是大約可用多久；增加家電或提高功率，使用時間就會縮短。
英文技術說明
Common questions
Can I estimate backup time for a portable solar generator?
For a battery-based portable power station, the same energy-versus-load principle can provide a rough estimate if its rated battery energy, usable capacity and conversion losses are known. Use bank voltage and Ah that represent the same battery capacity, and check the unit's own continuous and surge limits. This tool does not model simultaneous solar recharging.
計算方法
Available DC Wh = V × Ah × (current SoC − minimum SoC). Runtime = available DC Wh ÷ (AC load ÷ efficiency + inverter idle watts).
使用結果之前
This is an energy estimate for a steady load. Lead-acid discharge-rate effects, aging, cold temperatures and BMS shutdowns can shorten runtime. No solar charging is assumed.
Why is real backup shorter?
Battery capacity decreases with age and temperature, and high discharge rates can reduce usable lead-acid capacity.