Recharge the battery pack when it is exhausted, How to use the switch on the battery pack, How many times can the battery pack be recharged – Sony GV-9 User Manual
Page 14: Charging temperature
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Charging of the battery pack
The battery pack you have purchased is not charged. Fully charge the battery pack
before use.
Recharge the battery pack when it is exhausted.
• If the operation is completed before BATTERY DOWN is indicated, it is
recommended that you discharge the battery pack by playing back or recording
on another tape until the BATTERY DOWN indication blinks rapidly.
• Do not recharge the battery pack before it has been discharged. Repeated
charging while some battery capacity remains will reduce the battery capacity.
i Notes on the battery pack
Battery pack care
• Remove the battery pack from the video TV recorder after use, and keep it in a
cool place.
When the battery pack is installed on a video TV recorder, a slight amount of
current flows to the recorder even though the POWER switch is turned off. It
causes overdischarge and shortens the battery life.
• The battery pack is always discharging — even when it is not in use.
Thus, the battery should be charged before each use.
How to use the switch on the battery pack
Use this switch to indicate the charging condition. Set the
p- Switch
switch to the “no mark” position when the charging is
completed. Set the switch to the “red mark” position when
the battery has been discharged.
How many times can the battery pack be recharged?
The battery pack can be recharged more than 500 times provided that it is fully
charged and exhausted at each operation.
If the BATTERY DOWN indication blinks rapidly after turning on the recorder even
though a fully charged battery pack is installed, the battery pack should be replaced
with a brand new one.
Charging temperature
The battery pack should be charged
(5°F to 85°F).
in a temperature ranging from 10°C to 30°C
The battery pack will be warm after charging or using.
While the battery pack is charged or used, a chemical change which generates
electric energy occurs inside the battery pack. Therefore, the battery pack becomes
warm, and this is normal.
When the charging is completed, remove the battery pack from the charger.
Within 24 hours after charging, remove the battery pack from the charger.
Otherwise, overcharging may occur as a slight amount of current flows from the
charger to the battery pack.
Be sure to put the battery pack in the case to carry.
If the + and - terminals are short-circuited with a metal piece, the battery will be
abnormally heated. This is very dangerous. Never put an uncovered battery pack in
I 4 a pocket together with a key holder, etc.