Citroen Xantia Battery Light

jjjback

Rookie
Can anyone tell me how to fix?
Sometimes when I press the brake on the 94 Xantia, the battery light comes on and then the indicators, wipers, aircon and radio doesn't work, but everything else does. I turn the ignition key a bit (sometimes 4 or 5 times)and it comes back to normal.
 
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