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容量更新问题



用的是34Z100-g1的电量计,12S电池,放电到单节3.0V时,显示剩余容量百分比为0%,

问题是:充电时单节从3.0V上升到3.7V期间,容量一直维持0%,这个期间时长为8分钟左右。理论上应该一充电就会更新容量才对?

   

  • 確認一下你的預留容量設定,當沒電回充時,會先補足預留容量後,RemainingCapacity才會開始累加,百分比才會上升。
  • 请问预留容量设定是哪个参数?

  • 3.2.3 Reserve Cap-mAh
    Reserve Cap-mAh determines how much actual remaining capacity exists after reaching 0
    RemainingCapacity() before Terminate Voltage is reached. A loaded rate or no-load rate of
    compensation can be selected for Reserve Cap by setting the [RESCAP] bit in the Pack Configuration
    register.
    3.2.4 Reserve Cap-mWh/cWh
    Reserve Cap-mWh determines how much actual remaining capacity exists after reaching 0
    AvailableEnergy() before Terminate Voltage is reached. A loaded rate or no-load rate of compensation
    can be selected for Reserve Cap by setting the [RESCAP] bit in the Pack Configuration register.
  • 首先感谢您的耐心回复。

    经确认,现在这两个参数填的是默认的“0”,是否还有别的原因造成?

    或者这样问:电池容量为零时,对应的电压是3.0V,使用场景一般放电到单节3.6V,我应该怎么学习母片或者怎么确定这个两个参数应该填多少值?

  • 你所提出的问题为容量计算机制相关,针对Impedance Track不知道你了解多少,可能你先依以下步骤确认一些事情:
    1、放电时你要收log吗?有的话你可以看一下你放电到0%时,电池电压是几V?
    2、是否放到0%时还在一直放,放到电池为3V的时候或是mosfet turn off?
    3、依Impedance Track计算,不同放电电流 0%的电压点不同,所以不一定在电压是3V时才为0%。
    4、参数应该填多少值?需要配合system设置。