Where are my Batteries Located in my ECO?
Removing the Battery Door:
Use a flathead screwdriver to remove the battery door screw. This is a long screw and takes a few seconds to remove. When the screw is removed, slide the door to the left until it comes off.
Removable battery: this is the large battery on the left with a flexible tab on the end you can pull to remove the battery, should this be necessary. When replacing the battery, make sure it clicks into place before replacing the door.
Internal Battery: this is the smaller battery on the right. This battery remains in the case and should not be removed.