Below the Battery Live Parameters, several status bits are cyclically read from the battery whenever the Read button is pressed,:



gives some information about some states and errors. Each bit is set ON when higlighted, OFF when grayed.

    • OCA, Overcharge Alarm: if set, means that the battery is being charged beyond the maximum programmed overcharge limit
    • TCA, Terminate Charge Alarm: if set, means that the battery has detected a primary charge termination
    • OTA, Overtemperature alarm: if set, means that the battery temperature has reached the programmed Overtemperature threshold (typically 60°C both in charge and discharge)
    • TDA, Terminate Discharge Alarm: if set, means that remaining capacity is 0, or the cell Voltage is less than the programmed Terminate Voltage level (12000mV) or at least one of the single cell has dropped below the programmed Cell Undervoltage protection level (2800mV)
    • RCA, Remaining Capacity Alarm: if set, means that the remaining capacity is less than the programmed value set at 8% of the nominal capacity.
    • RTA, Remaining Time Alarm. if set, means that the estimated remaining time at the present discharge rate is less than the set threshold (10 minutes)
    • INIT, Initialised: if set, means that the microcontroller is correctly initialised
    • DSG, Discharging: if set, means that the battery is not being charged
    • FC, Fully Charged: if set, means that the battery has detected a primary charge termination or an Overcharge condition.
    • FD, Fully Discharged: if set, means that the Relative State of Charge has reached the "Battery Low" level, programmed at 8%. Reaching this level makes the LEDs flash when the LED button is pressed.
    • ERR, Error Codes: show some possible internal errors, if different than 0x00



gives some information about Pack status bits. Each bit is set (ON) when higlighted, OFF when grayed.

    • PRES: with our current settings this bit should always be set
    • EDV2: if set, means that the internal cell stack voltage has reached the EDV2 voltage threshold that corresponds to the "Battery Low" remaining cpacity (programmed at 8%). This voltage level is compensated and calculated automatically based on the discharge conditions, such as instant current, cell temperature and cells internal impedance.
    • SEALED: if set, means that the parameters of the battery are sealed and cannot be accessed for read/write.
    • VDQ, Valid Discharge Qualified: the current or next discharge cycle is valid for an update of the Full Charge Capacity.
    • AFEFail: if set, means that communication between the microcontrollers of the chipset have failed.
    • PFFlag: if set, means that the Permanent failure flag has been set; with our current settings this bit should never be set.
    • CVOV, Cell Over Voltage: if set, means that a protection limit has been exceeded including prolonged Overcurrent, Overvoltage, or Overtemperature conditions. The bit is not latched and merely reflects the present fault status.
    • CVUV, Cell Under Voltage: if set, means that a protection limit has been exceeded including overload or overdischarge conditions. The bit is not latched and merely reflects the present fault status.



gives some informations about the status of the safety IC chip - also called Analog Front End (AFE). Each bit is set ON when higlighted, OFF when grayed.

    • ZVCLMP: with our current settings this bit should always be grayed
    • SLEEPDET: if set, indicates that the safety IC chip is set in low power mode (also called sleep mode).
    • WDF, watchdog fault: if set indicates that a fault has been detected in the oscillator signal inside the chipset.
    • OVERLOAD: if set, means that an overload condition is detected (thus a current greater than the programmed threshold) and the related safety protection are activated.
    • SC-CHG, Short-Circuit in Charge: if set, means that a short circuit in charge direction has been detected and the related safety protections is activated.
    • SC-DCHG, Short-Circuit in Discharge: if set, means that a short circuit in discharge direction has been detected and the related safety protection is activated.



gives some information about the status of the Permanent Failure register that keeps track of critical errors. Each bit is set ON when higlighted, OFF when grayed.

    • PFF: with our current settings this bit should always remain gray.
    • PFIN: with our current settings this bit should always remain gray.
    • FETF: if set, this indicates a FET or FET driver failure occurred.
    • CIMB: if set, this indicates that a severe cell imbalance occurred during charging.
    • AFE: if set, this indicates that an AFE integrity fault state occurred meaning that the settings of the safety IC chip may not be consistent.
    • SOTD: if set, this indicates a safety overtemperature in discharge occurred.
    • SOTC: if set, this indicates a safety overtemperature in charge occurred.
    • SOV: if set, this indicates a safety overvoltage occurred.



gives some informations about the mosFET status.

    • Ch-FET: shows the status of the FET that enables/disables charge current. If ON, charge is allowed. If OFF, charge is not allowed as a consequence of a safety protection condition. In case of cells with very low voltage, the normal fast charge is not allowed to avoid damaging cells: charge FET is set to OFF, but a special precharge path is allowed with very low currents (in the order of almost 20mA). In this special case the State indicator will show "precharge".
    • Dch-FET: shows the status of the FET that enables/disables discharge current. If ON, discharge is allowed; if OFF discharge is not allowed as a consequence of a safety protection condition.
    • State: displays numerical and alphabetical description of the current battery state