It is best to contact your installer first.  He will check what the problem is and which guarantee conditions are valid for your specific case. In case the battery cannot be repaired and is still under guarantee, it will be exchanged according to the guarantee conditions.
As an importer, Allimex Green Power has a take-back obligation. This means that when you buy a domestic battery, you will be charged an additional cost for the eventual recycling of the battery when it is 'end of life' . This applies to all batteries purchased from Allimex Green Power. Contact your installer to find out the origin of your battery and whether the recycling battery has already been charged.