WUHAO TI-84 Plus CE Battery Replacement [2026 Upgraded] 1500mAh for Texas Instruments TI 84 Plus CE/TI-Nspire CX II/Color TI Nspire CX Part No 3.7L12005SPA P11P35-11-N01 Battery 3.7V with Tool

Trying to charge my calculator with a cord through the laptop resulted in the screen flashing constantly.So I tried replacing the battery and it works perfectly now. This one was cheaper than most and arrived quickly; no trouble with installation. Its only been a few months but still works consistently.

I let my TI-84 Plus CE battery go dead and didn't charge it for many months later but when I went to charge the battery it was stuck in an infinite loading boot loop of validating OS and wouldn't charge or get past the screen. I tried all the methods to reset it and even plugged it into the software to try and reinstall the OS but I was unable to even get to that point. Anyways, I bought this battery and popped it into my calculator and it is back to working without any issues, so if you have the same issue as me, then this battery will work with your calculator and save you lots of money. The battery my calculator had was the 3.7L1200SPB.

Battery is a perfect fit and works great.

We were nervous about buying a replacement battery. Our TI started flashing the "operating system error" and would not hold a charge. After all the research and trying all the tips and tricks, our last effort to fix it was to replace the battery. We ordered this and now it works fine!! We are so happy to not have to replace the whole thing. *Note: the shipping did take longer than usual, but we are very pleased.

Well functioning.

Works as advertised. So far no issues. Fits perfectly and fixed the error my Calc was having (known issue with T Calc - a bad battery issue they have addressed).

So far so good. My kid uses his calculator everyday with no issue.

Worked perfectly