Canon EOS R3 Advanced User's Manual page 49

The < > lamp blinks.
This display advises you to calibrate (discharge) the battery, which will enable accurate
charging capacity determination and battery level display on the camera.
When the <
battery at this time, wait approx. 10 sec., and charging will begin automatically.
To perform calibration, press the <
blinking in green. The <
Charging begins automatically after discharging, but note that the more fully charged the
battery is, the longer discharging will take. Estimated time required for discharging is
indicated by the <14h>, <4h>, and <2h> lamp, with a blinking green <14h> lamp
indicating a discharge time of approx. 4–16 hours.
Calibration drains the remaining battery level, and after this, charging the battery will
take approx. 2 hr. 50 min. To cancel calibration in progress and start charging, remove
and reload the battery in the charger.
Caution
Multiple cycles of charging and use without calibration may result in inaccurate
battery level display (
One battery can be charged while another is calibrated, but two batteries cannot be
charged or calibrated at the same time.
When performing calibration, consider using a battery that is nearly depleted.
Calibrating and then charging Battery Pack LP-E19 when it is fully charged takes
approx. 18 hr. 50 min.
Only the <100%> lamp is lit immediately after a battery is loaded.
Illumination of only the <100%> lamp in green immediately after charging begins
indicates that the internal battery temperature is out of range. Charging begins
automatically when the internal temperature returns to 5–40°C/41–104°F.
With two batteries loaded, illumination of only the <100%> lamp in green on the side of
the second battery indicates standby status.
All three lamps are blinking.
Charging is not possible when batteries other than Battery Pack LP-E19 are loaded in
the charger. In this case, the three charge lamps and <
If the three charge lamps blink in green consecutively during charging (with or without
blinking of the <
the nearest Canon Service Center.
If the three charge lamps blink during calibration, remove the battery and contact your
dealer or the nearest Canon Service Center.
> lamp blinks in green, calibration is recommended. To charge the
> lamp now remains lit in green, and discharging begins.
).
> lamp in green), remove the battery and contact your dealer or
> button while the <
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> lamp is
> lamp blink in green.