You must dispose of your waste batteries in line with your duty of care.
Usually your supplier (retailer) has to take back your waste batteries free of charge unless they sell less than 32 kilograms each year. Contact your supplier to find out about their battery collection arrangements.
The producer has to take these back free of charge up to a year after you bought them. After this time the supplier should take them back.
The producer has to take these back free of charge.