锂电池约3.7V，5号电池约1.5V，铅酸电池约12V。
考虑稳压器和发热损耗，典型值为80%–90%。
预计续航时间
—
— Wh · — mAh · 电流消耗 — W
| 效率 | 续航时间 | 已用瓦时 |
|---|
计算原理
先把容量换算成瓦时：Wh =（mAh × V）/ 1000。再把负载换算成瓦特（W = V × A）。续航时间（小时）=（Wh × 效率）/ 负载功率。
实际续航通常比理论值短——电池放电时电压会下降，低温会降低容量，而且设备很少能保持完全恒定的负载。
🧰 其他换算
电池续航时间计算器（mAh）
计算电池在给定电流消耗下的续航时间，并考虑效率损耗。可在mAh、Wh和安时之间互相换算。
别名
battery runtime calculatormah to hoursbattery life calculator
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