Question about HP 35s Scientific Calculator

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Extremely short battery life

I've purchased two new HP 35S calculators in the last two months, and battery like has been extremely short (< 1 month) in each. Is this a know problem area?

Posted by Anonymous on

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: incorrect claculation

I get an answer of 366.91 in my 12C as well. You might try either putting in a zero for FV before hitting the [PMT] key, or clearing your registers before doing the problem, as you may be picking up an old value from a previous problem in the FV register.

Posted on Jan 30, 2008

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SOURCE: how to fix a none responsive button in hp 35s calculator

Resetting the Calculator
If the calculator doesn't respond to keystrokes or if it is otherwise behaving unusually, attempt to reset it. Resetting the calculator halts the current calculation and cancels program entry, digit entry, a running program, a SOLVE calculation, an ∫ FN calculation, a VIEW display, or an INPUT display. Stored data usually remain intact.

To reset the calculator, hold down the C key and press GTO . If you are unable to reset the calculator, try installing fresh batteries. If the calculator cannot be reset, or if it still fails to operate properly, you should attempt to clear memory using the special procedure described in the next section. If the calculator still does not respond to keystrokes, use a thin, pointed object to press the RESET hole.
The calculator can reset itself if it is dropped or if power is interrupted.

CLEARING the MEMORY

If the calculator fails to respond to keystrokes, and you are unable to restore operation by resetting it or changing the batteries, try the following MEMORY CLEAR procedure. These keystrokes clear all of memory, reset the calculator, and restore all format and modes to their original, default settings (shown below):

  1. Press and hold down the C key.
  2. Press and hold down the R/S key
  3. Press i (You will be holding three keys simultaneously)
  4. When you release all three keys, the display shows MEMORY CLEAR if the operation is successful.

Posted on Mar 03, 2010

jas247
  • 844 Answers

SOURCE: Hey I'm Elena. See, I bought

Welcome to FixYa!

Here's a list of things to do if your HP49G calculator does not turn on.

1. Replace the batteries. (which you have done already)
2. Press and hold "ON" then press "+" several times, then release "ON".

If chacracters still doesn't appear in the main screen, reset the calculator:
1. Press and hold "ON" then press "F3", then release both keys.

The calculator should reset. If not:
1. Insert the of a metal paper clip into the hole at the back of the calculator. Insert as far as it goes. Hold for 2 seconds then remove the clip.
2. Press "ON".

If that does not fix the problem, the calculator needs to be serviced.
Note: always use alkaline batteries.

I hope this helps.
Thank you for using FixYa!
Keep me posted.
Jas247

Posted on Mar 23, 2011

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You need a new battery. One or more cells is defective. Obviously it's unsafe to continue using a battery pack if it gets hot enough to cause burns, so remove the pack from the computer. You can continue to use the computer on AC power until you get a replacement battery.

You might try contacting HP to see if there's any kind of warranty accommodation they can make. I've found several mentions in various forums about batteries in similar models going bad and that HP replaced them, but they were all within a year of purchase. Can't hurt to ask, though.

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I'm not sure if it is the only solution, but I had the same problem and I replaced the batteries. My HP35S works fine now.

Previously, however, there was no "battery" annuciator on the screen. This calculator went four years without a bettery change. My HP48GII, on the other hand won't go two months without a change. Go figure.

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you didn't care for your battery i think you had connected the charger for long time to mobile and remember dont charge your mobile before whole battery ends...

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