Solar-powered calculators
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04-28-2020, 11:10 PM
(This post was last modified: 04-28-2020 11:17 PM by ijabbott.)
Post: #6
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RE: Solar-powered calculators
I'd add Casio fx-411, fx-450 and fx-451 to the "solar only" list.
There is also the fx-451M variant for the "battery optional" list with battery backup for settings and memory. The battery is not meant to be replaceable, but I have done it. — Ian Abbott |
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