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 for six months or more they will need a supplementary charge prior to installation as outlined in Section 3. DANGER:BATTERIES ARE ELECTRICALLY LIVE AT ALL TIMES. DO NOT SHORT CIRCUIT THE BATTERY TERMINALS. WARNING:. To ensure maximum service life a supplementary charge may be required prior to installation. Apply a supplementary charge if: 1. The batteries have been in storage 6 months or more. 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. WARNING! All battery types supplied with integral handles must not be installed suspended from their handles. The handles are designed to.