Casio FX-115ES PLUS Battery Replacement

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Casio FX-115ES PLUS Battery Replacement: crwdns2935265:00crwdnd2935265:01crwdnd2935265:03crwdne2935265:0

Casio FX-115ES PLUS Battery Replacement: crwdns2935265:00crwdnd2935265:02crwdnd2935265:03crwdne2935265:0

Casio FX-115ES PLUS Battery Replacement: crwdns2935265:00crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

Turn the calculator the other way around so that the small panel in the top right corner of the back of the calculator faces forward.
Use a Phillips #0 screwdriver to remove the screw in the upper right corner.
Don't force the screwdriver on the screw, as it can strip the screw

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