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Scientific calculator, Button cell and solar or AAA battery?
TSkongming
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Jun 26 2017, 07:26 AM, updated 7y ago
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I want to buy a scientific calculator for A Level. Button cell and solar power supply or AAA battery, which is better?
Thank you
*Delete it if it is wrong post.
This post has been edited by kongming: Jun 26 2017, 09:06 AM
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Kcdw96
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Jun 26 2017, 06:23 PM
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Same la. Imo solar cell is redundant, cause I have several casio scientific calculators without solar cell, use since 2010 until now still can use. I use it quite regularly (PMR/SPM/pre-u/doing math in uni).
If now battery run out also I think I will just change the calculator haha
For a levels, I think the spm fx-570ms should suffice... No need waste money buy the others. Even for uni also I am just using it
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iSean
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Jun 26 2017, 09:27 PM
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QUOTE(kongming @ Jun 26 2017, 07:26 AM) I want to buy a scientific calculator for A Level. Button cell and solar power supply or AAA battery, which is better? Thank you *Delete it if it is wrong post. God damn it. kongming you study A-Levels for how long liao? In regards to Calculator, Casio 570ES will do the job. And it runs on AAA battery for 8 years shelf life. (Passed down for so long still haven't died.)
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kumiko_91
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Jun 27 2017, 05:14 AM
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I would say solar, I had the unfortunate calculator run out of battery event on my PMR back then. Since then I had been using fx-991ES.
Works great even until I finish masters recently which means it lasted about...almost 10 years now. I'm 26 this year and I bought it when I was 16. Hahaha.
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TSkongming
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Jun 27 2017, 09:34 AM
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I would prefer AAA battery.
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icefire123
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Jun 27 2017, 11:42 AM
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Getting Started
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QUOTE(kumiko_91 @ Jun 27 2017, 05:14 AM) I would say solar, I had the unfortunate calculator run out of battery event on my PMR back then. Since then I had been using fx-991ES. Works great even until I finish masters recently which means it lasted about...almost 10 years now. I'm 26 this year and I bought it when I was 16. Hahaha. I wonder how long the calculator has been using...... Mine AAA battery has lasted for about 10 years..... no sign of low battery.
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TSkongming
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Jun 27 2017, 11:50 AM
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Only the price are different.
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mr.thinkpad
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Jul 7 2017, 09:04 AM
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QUOTE(kongming @ Jun 26 2017, 07:26 AM) I want to buy a scientific calculator for A Level. Button cell and solar power supply or AAA battery, which is better? Thank you *Delete it if it is wrong post. solar will last u forever
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