Canon A420 User Manual
Page 94
92
z
Do not recharge batteries in enclosed areas that tend to
retain heat.
z
Repeatedly recharging batteries before they become fully
depleted may cause batteries to lose capacity. Do not
recharge the batteries until the LCD monitor displays the
"Change the batteries" message.
z
Wipe the battery terminals well with a dry cloth in the
following situations, as the terminals may be soiled with oil
from one's skin or dirt:
- If the battery usage time has considerably diminished.
- If the number of recordable images has considerably
diminished.
- When charging the batteries (insert and remove the
batteries two or three times before charging)
- When charging completes in a matter of a few minutes
(the battery charger indicator remains lit)
z
You may not be able to fully charge the batteries due to
their specifications right after purchase or after long
periods of non-use. If this happens, use the batteries until
their charge is depleted before charging them again. After
doing this several times, battery performance will be
restored.
z
Since storing a fully charged battery for long periods of
time (about one year) can shorten its lifecycle or affect
performance, you are recommended to use the battery in
the camera until it is completely discharged and to store it
at normal temperature (0 - 30 °C (32 - 86 °F) or less). If
you do not use the battery for long periods of time, charge
it fully and discharge it fully in the camera at least once a
year before returning it to storage.
z
If battery usage time is considerably low despite their
terminals' being wiped and the battery charger's indicator
remaining lit, it is possible that the batteries have reached
the end of their lifespan. Switch to different, unused
batteries. If you are purchasing new batteries, look for
Canon AA-size NiMH NB4-300 (NB-3AH set of 4)
batteries.
z
Leaving batteries in the camera or charger may damage it
causing battery leakage. Remove batteries from the
camera or charger and store in a dry cool location when
not in use.