How to download manual

Wrong battery, I am researching
1 Lithium Metal batteries required. (included)
https://www.amazon.ca/Texas-Instruments-TI-30Xa-Scientific-Calculator/dp/B00000JBNS

Duracel 76a is a standard alkaline battery according to this

https://www.amazon.ca/Duracell-Specialty-Alkaline-Battery-long-lasting/dp/B007IAWVUM

But No, LR44 is the same as 76a. Did you change both?? You said 'I replaced THE battery', there is clearly two batteries.

https://www.ifixit.com/Guide/Texas+Instruments+TI-30Xa+Battery+Replacement/34616

Time for a new one probably.

Texas Instruments TI-30Xa Scientific Calculator ' www.staples.ca

www.staples.ca > ... > Calculators > Scientific Calculators

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You may view/download a copy of the manual at http://www.fixya.com/support/p3854515-texas_instruments_ti_30xa_scientific_cal/usermanual-77551D8-pdf

You may download the user manual (TI calls it a guidebook) from here.

You can download the guidebook from the manufacturer's web site at
http://education.ti.com/downloads/guidebooks/scientific/30xa/30xa-eng.pdf

You can find the entire guide for de TI-30XA following this link: http://education.ti.com/downloads/guidebooks/scientific/30xa/30xa-eng.pdf

Enter in your dms value in decimal form (ex. 48 (degrees) 5' 3.5" as 48.05035), then press [2nd] [dms > dd] and hit enter.

Download the guidebooks from the manufacturer's web site at http://education.ti.com/educationportal/downloadcenter/SoftwareList.do?website=US&tabId=2&paneId=18#

Hello,
You enter that as follows
3500[x] (1.064)[Y to the x]3.5 [=] . Note that [x] is the multiplication sign.
Hope it helps.

It's been a while since my TI calculator died, but I think you can just hit EE (may be "exp" on your model) followed by =.

go to battery replacement texas instrument ti-30xa or whichever model you have.

place calculater face down
remove screws from back
remove back cover (you have to struggle a bit).
remove batteries and replace with new ones
put back the cover and screws