Change battery on Igloohome Smart Padlock SP2E 1.) Padlock must be unlocked. Pull the shackle to "open" position. 2.) Pull the rubber cover from the bottom of the Padlock out, and release the Torx screw. 3.) Release the Torx screw located below the shackle on the inside of the Padlock and remove the back cover. 4.) Release the 3 screws that secures the battery cover and pull the tab to remove the battery. 5. Replace the Rechargeable Lithium Battery, close the battery cover and secure it with the 3 screws. 6. Insert the back cover and tighten the Torx screw located below the shackle on the inside of the Padlock. 7. Tighten the Torx screw at the bottom of the Padlock and plug the rubber cover into place. 8. Push the shackle to ‘close’ position for the Padlock to automatically lock.