DSC-T20, DSC-T20HDPR, DSC-T25 (serv.man3) - Sony Digital Camera Service Manual (repair manual). Page 32

The tables show the approximate number of 
images that can be recorded/viewed and the 
battery life when you shoot images in 
[Normal] mode with the battery pack at full 
capacity and at an ambient temperature of 
25°C (77°F). The numbers of images that 
can be recorded or viewed take into account 
changing the “Memory Stick Duo” as 
necessary.
Note that the actual numbers may be less 
than those indicated in the table depending 
on the conditions of use.

• Battery capacity decreases as you use it more, as 

the time passes.

• The number of images that can be recorded/

viewed and the battery life are decreased under 
the following conditions:

– The surrounding temperature is low.
– The flash is used frequently.

– The camera has been turned on and off many 

times.

– The zoom is used frequently.
– The brightness of LCD Backlight is set to up.

– [AF Mode] is set to [Monitor].
– [SteadyShot] is set to [Continuous].

– The battery power is low.
– [Face Detection] is set to [On].

[

• Shooting in the following situations:

– [AF Mode] is set to [Single].

– [SteadyShot] is set to [Shooting].
– Shooting once every 30 seconds.

– The zoom is switched alternately between the 

W and T ends.

– The flash strobes once every two times.
– The power turns on and off once every ten 

times.

• The measurement method is based on the CIPA 

standard.
(CIPA: Camera & Imaging Products 
Association)

• The number of images/battery life does not 

change, regardless of image size.

[

• Viewing single images in order at about three 

second intervals

[

• Shooting movies continuously with an image 

size of [320]

No. of Images

Battery life (min.)

Approx. 380

Approx. 190

No. of Images

Battery life (min.)

Approx. 7200

Approx. 360

Battery life (min.)

Approx. 160