Purchased my leisure battery9 months ago for my camper its permenantly on trickle charge unless we are away. It’s just died, on return to Tayna I received the reply “I'm afraid to report that while the battery has failed, it has not failed due to manufacturing defects, but has failed due to not being kept charged. If a battery is not kept above 12v, sulphation will occur“ oh really ! I’d be interested to know (and woukdtrading standards) if they have ever changed a battery under warranty. All the good reviews are on quick delivery, none based on after sales care. Avoid