Canon EOS REBEL T8i Advanced User's Manual page 41

3.
Recharge the battery.
LC-E17
As shown by the arrow, flip out the battery charger's prongs and insert
the prongs into a power outlet.
LC-E17E
Connect the power cord to the charger and insert the plug into a power
outlet.
Charging starts automatically and the charge lamp (1) lights up in
orange.
When the battery is fully charged, the full-charge lamp (2) will light up in
green.
It takes approx. 2 hr. to fully charge a completely exhausted
battery at room temperature (23°C/73°F).
The time required to charge the battery will vary greatly depending on
the ambient temperature and the battery's remaining capacity.
For safety reasons, charging in low temperatures (5–10°C/41–50°F)
will take longer (up to approx. 4 hr.).
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