TI-84 Plus CE Battery,[2025 New Upgraded] 1600mAh Fits Texas Instruments TI-84 Plus CE,TI Nspire CX/CX II、TI Nspire CX CAS/CX II CAS,P/N:P11P35-11-N01/3.7L High Capacity Battery

Bought yesterday, I installed today into my daughter's three year old TI-84 Plus CE calculator (which was stuck in the dreaded "Validating OS" infinite loop) and it was up and running in a few seconds. You do need a micro Philips but very simple and easy to do. Also was able to update the OS with TI Connect since it was finally stable. My daughter graduates in three weeks so well worth not having to buy a new calculator just for final exams! It is important to note that if your battery is less than two years old, TI will send you a new one if you go out to their support website and submit.

huge life saver!!! saved my TI-84 Plus Ce when it was stuck in the "validating OS" loop!

Easy change and working great and good price.

Worked as advertised. It fit. It holds a charge. It restored operation. It's a battery, so I don't know what more to say. Batteries either work or they don't. This one worked properly.

Great price and delivery

Day before a life changing test, no calculator to be seen. Found my old one from school but stuck in boot loop because of fried battery. Lemme tell you, Amazon delivers. Ordered it 2 days before my test and arrived next day. I passed my test because of this battery I’m eternally grateful!

Battery works perfectly fine, comparable to OEM.

Perfect fit! Still working after several months.