Charging - Samsung Galaxy A21 SC-42A Instruction Manual

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Insert the docomo nanoUIM card/microSD memory card tray
into the terminal
• Take care to insert the docomo nanoUIM card/microSD memory card
tray in the correct direction. If the direction you insert the docomo
nanoUIM card/microSD memory card tray is incorrect, it may be
damaged.
Information
• If you lost the SIM ejector tool, you can use a paper clip instead.
Example of a paper clip
Formatting microSD card
Note that formatting microSD card erases all data in a microSD card.
1
From the Home screen,
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"Storage" → "Advanced"
3
"SD card" → "Format" → "Format SD card" → "Done"
→ "Settings" → "Device care"

Charging

■ Internal battery life
• The internal battery is a consumable accessory. Each time it is
charged, time available with each charging reduces.
• Using apps, etc. while charging the internal battery for a long time
may shorten the battery life.
• When a time available with each charging is reduced to about
a half from that of a new battery, replacement of the battery is
recommended because it is near the end of life.
■ Charging
• AC Adapter 07 (sold separately) is applicable to the range of 100
VAC and 240 VAC.
• For details of AC Adapter 07, see respective manuals.
• The AC adapter has a plug dedicated to 100 VAC (for domestic use).
When using the AC adapter in the range of AC 100V and 240V
overseas, a conversion plug adapter applicable to the country you are
staying is required. Do not charge the battery using a transformer for
overseas travel.
• When the terminal is turned ON, you can operate the terminal even
while charging. However, in that case, charging takes longer time
because of reducing charging volume.
• When inserting/removing the connector, make sure not to put
excessive force.
• You can check the latest charger with the terminal in the DOCOMO
online shop.
https://onlineshop.smt.docomo.ne.jp/options/search.html (In
Japanese only)
■ Estimate internal battery operating time
• The operating time of the internal battery varies depending on the
operating environment and the degradation level of the internal
battery, etc. For estimate of operating time, see "Main specifications"
(P.144).
■ Estimate internal battery charging time
• For estimate of charging time, see "Main specifications" (P.144).
Information
• If you see and "Check BATTERY" when charging, please contact
the Galaxy Customer Support Center.
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Getting started