Psp draining battery

[Fiend009]

ok now what is you problem cause after a couple hours every psp will end up completely draining the battery unless its draining it while its charging or if you want to make it last longer turn down the screen brightness and lower the volume

Brightness and volume is on 1.
After I charging the battery to 100% one night, the next morning it was at 37%.

putting your CPU to 333 will drain battery faster

Cpu speed is on default.