最简单就是买一个 battery tester。亚马逊上面就有，大约 $5.

来源: 原上草2017 于 2022-08-16 11:12:22 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

https://www.amazon.com/Battery-Tester-Checker-WeePro-Monitor/dp/B07VB4NTK8/ref=asc_df_B07VB4NTK8/?tag=hyprod-20&linkCode=df0&hvadid=366016835942&hvpos=&hvnetw=g&hvrand=5251555094832532799&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9032144&hvtargid=pla-854337400727&psc=1&tag=&ref=&adgrpid=80266838630&hvpone=&hvptwo=&hvadid=366016835942&hvpos=&hvnetw=g&hvrand=5251555094832532799&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9032144&hvtargid=pla-854337400727

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