This adapter lead allows you to connect your Oximiser battery charger (which has a white Oxford connector plug) to battery ring leads that have an SAE connector.
An SAE connector is a molded connector with one pin bare and one shielded pin.
Oxford produce a set of battery ring leads with SAE connector - see code EL105. Other accessories are available with SAE connectors or with the traditional white connector.
2 year warranty. See OXFORD PRODUCTS website for details: https://www.oxfordproducts.com/contact/warranty_information/