Introduction
If your CASIO fx-300 MS scientific calculator is not functioning, it may be time to replace the battery.
After so many hours of use, the battery will come to the end of its lifespan. It is also possible that the battery is faulty or damaged. This can be a hindrance and hazard as you would have to buy a new calculator or face the threat of chemical burns from alkaline residue.
Follow each step with caution if you want replace the battery for your CASIO fx-300 MS calculator.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.