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Casio fx-570EX vs 991EX
11-26-2022, 07:13 AM
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RE: Casio fx-570EX vs 991EX
Other than the countries they are sold in, the only difference I can see is that the fx-991EX is powered by solar cells and one LR44 battery while the fx-570EX is powered only by a single AAA battery (no solar cells). This also changes the dimensions slightly. See the specifications on page 42 of the manual.

https://support.casio.com/storage/en/man...1EX_EN.pdf
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Casio fx-570EX vs 991EX - Matt Agajanian - 11-26-2022, 03:04 AM
RE: Casio fx-570EX vs 991EX - Steve Simpkin - 11-26-2022 07:13 AM



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