It is easy to cause the current circuit broken when switching, and this is dangerous to the operator and device. 切換過(guò)程中易造成電流回路開(kāi)路，危及運行人員及設備的安全。
Allow the battery to stabilize for two minutes, and then verify open circuit voltage. 讓電瓶穩定兩分鐘，然后，查證開(kāi)路電壓。
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