As expected.
As expected.
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低档万用表是半坡整流,有的全波整流,有的是TrueRMS
-chinomango-
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(226 bytes)
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11/10/2023 postreply
15:44:43
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无论表笔极性如何,交流电流挡测电池都显示 0.00V
-TBz-
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11/10/2023 postreply
19:29:31
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交流档应有隔离直流的电容串联在电路里,ac档测直流电源稳定读数为0那就对了,只会在接上的一瞬间因为
-wibblypig0-
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(257 bytes)
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11/10/2023 postreply
16:59:48
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这没啥奇怪的。3.6V锂电池(应该是3.7V?)充电时的终止电压是4.2V,就是先恒流充电,等电池电压上升到4.2v附近
-wibblypig0-
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11/10/2023 postreply
18:45:21
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我没有觉得奇怪,电池本来就不是恒压源,开路电压会比标称电压偏高。
-TBz-
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11/10/2023 postreply
19:32:31
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18650本来就是4.2v
-位酷哥-
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11/11/2023 postreply
11:10:06
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4.2v是充电终止电压。https://components101.com/batteries/18650-lithiu
-wibblypig0-
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11/11/2023 postreply
12:40:29
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按设计,18650的空载电压就是4.1-4.2V
-位酷哥-
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11/12/2023 postreply
06:43:24
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