Battery Status Report

Get a Battery Status Report to see an overview of the battery condition. From the main menu please use command rpt to initiate a report about the battery status:

ENTER command... (? for help)
CMD >>rpt

The system will gather the available data from the car.

Reading data....................OK

And will display a short report:

-----------------------------------------
---       Battery Status Report       ---
-----------------------------------------
Time [hh:mm]: 20:57,   ODO : 30813 km

Battery Status   : OK

Battery-Production [Y/M/D]: 2013/9/29
Battery verified   [Y/M/D]: 2013/9/30

realSOC          : 74.5 %, SOC: 74.5 %
Charged Capacity : 46.8 Ah, min. Cell# 6
BMS estimate     : 47.9 Ah, value @25degC
Measurement done : 0 day(s) ago
Estimation factor: 0.803, good

OCV timer        : 1934 s, @21.8degC
OCV state        : HV ON, can't meas. OCV

DC isolation     : 5813 kOhm, OK

Voltage Distribution (dV= 74 mV):
*--->-----------[====|==]-----------<---*
3843   01 > [3873; 3882; 3888] < 03  3917
min         [p25; median; p75]        max
-----------------------------------------
CMD >>

You will see the overall status of the battery (Battery Status : [OK | FAULT] ) and a summary of the BMS measurements. For a detailed description please refer to the Data Overview section.

Some measurements will get a comment to rate the displayed value:

measurement	rating	remark
Estimation factor		BMS estimate of the measurement quality for the charged capacity.
> 0.85	excellent
> 0.82	very good
> 0.80	good
> 0.78	fair	You need a larger dSOC, so start test below 20% SOC.
<= 0.78	poor	Don't trust the measurement and redo it. Watch out for OCV state to be OK!
OCV state		Open Circuit Voltage (as steady state of the pack).
OK		OCV state achieved
Ready for cap. meas. !		OCV state achieved and SOC < 20%, ready for a good capacity measurement.
wait for	[hh:mm]	Time to wait for OCV state.
	[mm:ss]	...
	[sec]	OCV timer will not count down, so the HV OFF timer will be displayed here.

The Voltage Distribution will show if the battery is balanced well. The cell voltages of the pack will be displayed in a Box Plot to visualize the balancing level. Here is an example of a badly balanced battery - for more information please refer to the Data Overview section: