Sony DSC-TF1 - Manual (Page 157)

The remaining charge indicator may not be correct under certain circumstances.
When [Power Save] is set to [Standard] or [Max], if you do not operate the camera for a certain
period of time while the power is on, the screen becomes dark, then the camera turns off
automatically. (Auto power-off function)
How to store the battery pack
Fully discharge the battery pack before storing and store the camera in a cool, dry place. To maintain
the battery pack’s function, charge the battery pack and then fully discharge it in the camera at least
once a year while storing.
To use the battery pack up, leave the camera in slideshow playback mode until the power goes off.
To prevent staining the terminal, short-circuiting, etc., be sure to use a plastic bag, etc. to keep away
from metal materials when carrying or storing.
On battery life
The battery life is limited. Battery capacity decreases over time and through repeated use. If the
available time of the battery is shortened significantly, it is probably time to replace it with a new one.
The battery life varies according to how it is stored and the operating conditions and environment in
which each battery pack is used.
Compatible battery pack
The NP-BN (supplied) or NP-BN1 (sold separately) can be used with this model.
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