Intel Falcon 8+ User Manual page 36

Table 2-9. Battery capacity
The LEDs show the current possible battery capacity as
percentage compared to the factory battery capacity.
Status of LED No. 
1 2 3 4 5
on - - - -
on on - - -
on on on - -
on on on on -
on on on on on
Menu option 5, battery status
Menu option 5 shows the difference (in percentage) between the highest measured cell
voltage and the lowest measured cell voltage, measured at the same time.
The BMS tries to balance the charging status of all 4 battery cells to the same level. By
measuring the difference between the highest cell voltage and the lowest cell voltage
the actual battery status is determined. This status can be shown by activating menu 5.
Table 2-10. Battery status
The LEDs show the status of the battery.
Status of LED No. 
1 2 3 4 5
- - - - -
on - - - -
on on - - -
on on on - -
on on on on -
on on on on on
To get a comparable result, this battery status check is done best directly after use/
flight.
BMS error mode
If during the charging process the LEDs are lit alternatingly in the way LED2 and LED4
ON <=> LED3 ON, the charging process is interrupted for one of the following reasons:
• The battery cells are too hot (> 45°C) or too cold (< 0°C)
• Charge Control Circuitry too hot (> 70°C)
The charging process will resume automatically once the cells cooled down respectively
heated up.
When the battery shows LED1 ON and LED5 ON alternating with LED2 and LED4 ON,
the battery was operated out of specifications (e. g. too hot during discharge).
When a battery shows this behaviour, it will still be possible to discharge its remaining
capacity, but it must not be used it anymore.
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Remaining capacity
51% - 60%
61% - 70%
71% - 80%
81% - 90%
> 90%
Voltage difference Meaning
<= 5% best, the battery can be used
> 5% still everything fine
> 10% battery still usable
> 15% bad, think about changing the battery
> 20% very bad (the battery might still be used in the CTR)
> 25% worst (e.g. 3.8 V on the highest and 2,85 V on the
lowest cell, measured at the same time), the use of
the battery is no longer possible
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Intel Falcon F8+