Question about Sharp EL-9600C Calculator

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Short Battery Life

It seems like the battery life has become shorter now after I use my calculator for about 5 years. With fully charge batteries it could run at least 6 months, now it's about only 2 months; I use it as frequently as I used to. Is there anyway to fix it? Thanks.

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Re: Short Battery Life

It is the matter of battery life time-nothing wrong

Posted on Mar 18, 2008

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Assuming you have connected the correct charger - it sounds like the battery has reached the "end of life". There are only so many charge / discharge cycles a battery can accept, and yours has probably reached it.

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If it is the solar version, expose the face of the calculator to direct sunlight or to a lamp. For the battery version, replace the battery. If that does not work, calculator may be at the end of its useful life.

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Ah! that perennial desire for eternity. The calculator uses solar power. It also have a battery. Under normal circumstances you won't need a battery, may be if you are living through a long Nuclear Winter.
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Why is the battery life so short?

maybe you batties are wek and maybe there is something again wrong with the calculator , or maybe you need stronger batteries have you tried that yet.

ps loved always

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How do i check the battery life of the calculator?

The life of the batteries depend on the use. If calculator is on and running programs 24 hours a day, the batteries will not last more that 2 or 3 days. If you use it the calculator for 2 hours a day, fresh batteries may last a semester.
But I believe you want to check the CURRENT state of the batteries. You can buy from an electronic store or a dollar store a device that tells you if a battery is still good or not.
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Jul 17, 2011 | Texas Instruments TI-84 Plus Calculator

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I wonder what is the model of the battery using on HP 10b

HP 10b Calculator requires two CR2032 Lithium batteries. The battery is 3 Volts, 3/4" in diameter and has an estimated life of three years. Replace the battery with CR2032 or an equivalent one.The following brands are used interchangeably for this item: Energizer (ECR2032), Duracell, Panasonic, Eveready, and 3M etc, which can be purchased from any local electronics store.

For further information you may refe to HP 10b Manual
Dont forget to appreciate the solution if I could have been of any help!

Feb 27, 2011 | HP 10b Calculator

1 Answer

I replaced the 4 AAA batteries and it won't turn on do I have to replace the back up battery as well? Thanks

There is a strong probability that your calculator is functioning correctly. The problem is that after replacing main batteries the screen contrast may become too dark or too light (your case).
To fix this "problem" you must adjust the contrast.
To darken screen:
  1. Press [2nd] key and release it.
  2. Press and HOLD the UpArrow
  3. Keep pressing UpArrow until screen is dark enough.
Try this adjustment. I am confident it will bring your calculator to life.
If it fails, post a comment to this thread and I will give your additional diagnostic procedures.

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If the asterisk is flashing, the batteries you put in are not good either.

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You may be right. I have left batteries in my TI92 for years without using it. When I put in fresh batteries, it came back to life. The backup battery of my TI92 (bought a dozain years ago) has not been changed yet.

Hope it helps.

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1 Answer

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It's written in the back of the calculator, mate ! A TI BA ii Plus uses a CR2032 battery, which is 3V, 60 micro A.
Just go to the shop and give them the battery model.

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