或是可否告知這顆電池有沒有被鎖碼?(如果鎖碼我就不花功夫嘗試由外部用單晶片去解鎖了
)原由:
個人有一顆6 Cells BTY-S12電池....根本幾乎很少使用...某天試著裝上,電池竟然不能用了...電池指示一直閃紅燈...
當時東西也過保固....沒管它.......最近把它給拆了......發現根本就是原廠電池品質出問題...
它是3串2並的鋰電池....問題竟然是其中一顆電池自己短路壞掉了
不是過放造成的....因為其他顆電池都還有3.7V的電壓......且與壞掉並聯那顆也可以正常充電.....
原來當時很多人U100的電池用沒多久突然會自己壞掉.....可能是電池蕊本身生產時就有瑕疵吧....但自己短路未免也太離譜了
目前將壞掉短路的電池蕊拆掉...並將原本那顆並聯0V的電池蕊充到4V.....總電壓11.4V.....但還是不能開機一直閃紅燈
看電池晶片是TI的晶片...bq20z70 + bq29330
這個好像是電池出過問題...就會鎖住不能用了....除非解鎖...
有神人提供程式嗎?
還是只能從電池外部SMBus下指令呀??? 但....不知有沒有鎖碼呀? 我不想做白工
A.1.2.10 Permanent Fail Clear(PFkey)
This 2 step command needs to be written to ManufacturerAccess in following order: 1st word of the PFKey followed by the 2nd word of the PFKey. The default 1st word is 0x2673 and the default 2nd word is 0x1712.
It instructs the bq20z70 to clear the PFStatus, clear the [PF] flag, reset the SAFE pin and unlock the dataflash for writes.
This command is only available when the bq20z70 is in Unsealed or Full Access mode.
Related Variables:
· DF:PF Status:Device Status Data(96):PF Flags 1(0)
· DF:PF Status:Device Status Data(96):PF Flags 2(28)
· SBS:PFStatus(0x46)
· SBS:SafetyStatus(0x51)[PF]
· SBS:PFKey(0x62)
Note: Higher 2 bytes must be immediately followed by lower 2 bytes. If clear command fails,command can only be repeated 4 seconds after previous attempt. If communication other than the lower 2 bytes occurs after the first 2 bytes are sent, the Permanent Fail Clear command fails.
