94 Lesabre Battery!

Hey whats up guys.. i got a problem with my 94 lesabre.. the battery gauge goes down almost to red when i hit my signal lights.. and it goes way down when i hit my brakes.. any1 know whats wrong..also my stereo just shuts off randomnly and comes back.. i have a amplifier but havent used it in a while.. could it be my alternator or battery i checked my terminals and no rust.. i had my alternator and battery checked back in october..it was fine...

Hey whats up guys.. i got a problem with my 94 lesabre.. the battery gauge goes down almost to red when i hit my signal lights.. and it goes way down when i hit my brakes.. any1 know whats wrong..also my stereo just shuts off randomnly and comes back.. i have a amplifier but havent used it in a while.. could it be my alternator or battery i checked my terminals and no rust.. i had my alternator and battery checked back in october..it was fine...
hello
i would first un hook your amp and take it for a spin if the problem goes away then thats it.if not i would look into you alternater

When a battery drops voltage, even a small amount, it makes a big difference. For instance, when a battery drops from 12.6 to 12.0 volts, its power drops from 100% to 25%. At 12.4 volts, a car battery is only 75% charged. At 12.2 volts, it is only 50% charged!

A car battery is considered charged at 12.4 volts or higher. It is considered discharged when it is 12.39 volts, or less.
Where is yours:confused: