<p>Can anyone please give an approximate duration for which the batteries can be used for the TI 84 plus calculator?</p>
<p>I had changed the AAA Batteries 4 months ago and I need to know if it should be fine for my upcoming SAT in Jan.</p>
<p>I use it intensively but still not sure… The calculator is fine and is working perfect , so do not want to tamper with it by changing the batteries when replacement is not needed.</p>
<p>Ofcourse, the low battery signal is not there</p>
<p>Help appreciated!</p>
<p>I bought my T1-84 in August 2009. Today, I have the batteries are low signal, but it still works. Thus, it has lasted for 16.5 months so far.</p>
<p>My Ti-84+ Silver would usually last several months (used for about 2 hours on a daily basis) before requiring a battery change, though I’d go ahead and change the batteries right before the test just to be safe.</p>
<p>yeah just change them before the test.</p>
<p>I always change the batteries for my TI-89 every time before a test.</p>
<p>Just bring 1 set of replacement batteries for each calculator you have, unless you worry about running out of time.</p>
<p>Won’t it give you a warning first “LOW BATTERIES” over your screen? Even when it says that, I think it should last an entire test, since math sections consist of only about an hour of the entire test.</p>
<p>What’s weird about my calculator (actually happened today) is that once the low battery warning comes up (not the change is required message, but the change is recommended message), the calculator shuts itself off if it’s on for more than 2 seconds.</p>
<p>How will i know if the AAA batteries OR the silver oxide battery need a replacement?</p>
<p>Is there a different message for each of the above scenarios?</p>
<p>Also, how frequently do you replace the silver oxide battery?</p>
<p>How do we know when we need to change it? Do you do it on your own or get it done in a shop (screw , etc)…</p>
<p>Thanks so much</p>
<p>As far as I know, the silver oxide battery doesn’t have a warning signal. I remember reading somewhere that it should be changed approximately every 2 years, but common sense tells me that my memory probably isn’t right. So just Google it and you’ll find all you need.</p>
<p>Has anyone here changed the silveroxide battery so far? My friends tell me that it does not need a change at all unless one is particular about the programs that are stored.</p>
<p>Not sure if I need to tamper with it prior to the AP calc exam.</p>
<p>Also, any idea about the approximate number of hours of usage for the AAA batteries? Not planning to change either the AAA or the silveroxide batteries prior to the exam as the plan is to take a few spare AAA batteries just in case.</p>
<p>thanks</p>