Polo 99 - Battery Acid

[freestyler3000]

Hi all... new to the forum.

VW Polo T reg (1999)... Had the battery replaced a month ago... because it was leaking...

And now the brand new one is leaking....

Something is causing the battery acid to be 'sucked' out of the battery.... Any ideas.

Thanks in advance

[riget]

It'll be because it's overcharging, most probably need a new alternator.

[cactikid]

are u getting a burning taste in mouth with acid in battery boiling,sure sign of altenator overcharging also lightbulbs burning out also.

[sheringcher]

anything more than 15.6v on battery when running is sure thing alternator is charging too high ie regulator has stopped functioning and just churning out all dc volts possible?