Today they all read between 11.8v and 12.6v and have been unplugged from the controller for the last 2 months (so no trickle charge): If any if them were bad they would have dropped voltage by now. This listing is exclusively for the batteries: It doesn't come with the steel enclosure or the connection straps but I may be able to include them if you really need them.
The item "20x Yuasa SWL2500FR deep discharge leisure battery 12V" is in sale since Saturday, May 06, 2017. This item is in the category "Vehicle Parts & Accessories\Motorhome Parts & Accessories\Caravan Parts\Mobile/ Touring Caravan Parts". The seller is "kitcarking" and is located in Edinburgh. This item can be shipped to United Kingdom.