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BQ28Z610: 充電但是電芯沒有充飽

Part Number: BQ28Z610


Dear Expert

目前我遇到一個狀況是,電芯是2P總容量是4000mAh / 4.4V / 2A充電,用充電設備對PACK充電到4.4V轉CV mode後電壓瞬間往下掉到4.1V左右,請問是何種問題?

https://ibb.co/3s6Q1My

下圖是CV mode模式電壓回到4.1V左右。

https://ibb.co/XpQ713s