Another battery tip from cool knex13 this one is for PSP.
Hope it helps and do not forget to rate and comment.
Come back again and I might have added new tips!
Step 1: Brightness
This can really suck your battery.
Turn the brightness on the lowest it can go.
these are the three stages.
Step 2: Headphones
Use headphones more often
(Sorry did not have much information on this one!)
Step 3: UMD
Take the UMD out when you are not using it because every time you go past the "games" folder it will fire up the disk.
Step 4: WLAN
Putting the WLAN to power save really helps to save battery when you are outline.
Settings > power save settings > WLAN power save > turn on.
Step 5: Auto Sleep
Auto sleep is very useful when you forget to turn your PSP off.
Settings > Power save settings > Auto sleep > 5 minutes (Recommend).
Step 6: Back Light Auto-off
This is good for when you are listing to music the screen just tuns off.
Settings > Power save settings > Backlight auto-off > 2 minutes (recommend).
Hold the screen button to turn off the screen. (This dose not shut down the PSP)
Press any button to get the screen on.
Step 7: Other Battery Tips!
Need more battery tips?
How to save battery on iPod touch/iPhone:http //www.instructables.com/id/How-to-save-battery-on-iPod-touchiPhone/