So i have my ipod jailbroken i think on 1.1.3. and i have a ggood amount of programs probably around 45. I never have the Wi-fi on unless im using it. So, I charge my ipod all the way up, and then unplug it and bring it in my car and play it through my radio. After about 6-7 songs my battery is at 20%. Also note that the brightness is as low as it goes. What is going on? what should i do?