Tutorial to change battery for Casio fx-570ex

Did you know Casio FX-570EX using AAA battery to operate. This model powered by battery while the Casio FX-991EX using solar to recharged itself. Here is the steps to change the battery for 570 model.

1. Open the back case using screwdriver.

2. Open the back cover and replaced the new AAA battery attached to motherboards

3. Locked the back case and your calculator will working back to normal. Usually in the product of package said the battery life time around 2 years. My calculator was bought last 2 years ago and i replaced the battery because the digital digits looks faded and disturbing me when doing a homework. Recommended to use high quality of battery eg. Energyzer. Looked for the original one to have more performance.