If the batteries are notto be installed immediately, keep them boxed and store in a cool, clean and dry place. If the batteries are to be stored. DANGER:BATTERIES ARE ELECTRICALLY LIVE AT ALL TIMES. DO NOT SHORT CIRCUIT THE BATTERY TERMINALS. WARNING:. WARNING! All battery types supplied with integral handles must not be installed suspended from their handles. The handles are designed to facilitate manual handling during the installation of the batteries and not as a. To ensure maximum service life a supplementary charge may be required prior to installation. Apply a supplementary charge if: 1. The batteries. A wire brush should be used on all battery terminals to remove any oxidation layers. Application of a non-oxidising grease (such as Vaseline) in not necessary. However there may be some installations where there are corrosive.