🔋 电池续航计算器Battery Life Calculator

使用说明与常见问题How-to & FAQ

「电池续航计算器」是什么？What is the Battery Life Calculator tool?

根据电池容量（mAh 或 Wh）、设备平均电流或功率以及可用容量比例估算电池续航时间。Estimate battery runtime from capacity (mAh or Wh), average current or power draw and usable capacity.

如何使用「电池续航计算器」？How do I use the Battery Life Calculator tool?

在「电池续航计算器」中，填写「输入方式」、「容量 (mAh 或 Wh)」、「负载 (mA 或 W)」、「可用容量 %」、「电压 V(可选，用于换算)」等参数，结果会随输入实时计算并显示在下方。In the Battery Life Calculator: Fill in "Input", "Capacity (mAh or Wh)", "Load (mA or W)", "Usable capacity %", "Voltage V (optional, for conversion)"; results are recalculated instantly as you type.

为什么要设置可用容量？Why set usable capacity?

电池实际可放出的电量受放电电流、温度、截止电压和老化影响，通常只有标称容量的 70–90%。Real batteries deliver less than their rating due to discharge rate, temperature, cut-off voltage and ageing, typically 70–90%.

计算结果可以用于作业或工程吗？Can I use the results for homework or engineering?

「电池续航计算器」使用教科书标准公式（公式写在说明和常见问题中），适合学习和估算核对；涉及安全的工程设计请以规范和实测为准。The Battery Life Calculator uses standard textbook formulas (given in the description and FAQ), which is good for learning and checking estimates; for safety-critical engineering follow codes and measured values.

「电池续航计算器」免费吗？需要注册吗？Is the Battery Life Calculator free? Do I need an account?

「电池续航计算器」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Battery Life Calculator is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.