WUHAO TI-84 Plus CE Battery Replacement [2025 Upgraded] 1500mAh for Texas Instruments TI-84 CE/TI 84 Plus CE/TI-Nspire CX II/Color TI Nspire CX Part No 3.7L12005SPA P11P35-11-N01 Battery 3.7V

The "Validating OS ......" loop immediately gone after replacing the old battery with this one. So far so good.

This fit well and calculated works now.

No longer have to charge my calculator every week, good as new.

Original battery was glitching the calculator, but this new battery fixed the problem!

Direct fit, lasts longer than the original battery

Our 3-month old TI-84 Plus CE was in a loop and would not turn on. Could not find a genuine TI battery so this was the next best thing. Glad we made this purchase as the calculator booted up immediately. This saved us $120! Definitely give this battery a try if you have the same problem.

My original batt is model: 3.7L1200SPA and same part number as this product. Fits and takes charge, but time will tell how well it holds up. I thought it was bad cause was doing the same as my old batt not charging using wall outlet adapter usb charger and just staying green. I plugged cord into a usb port on pc and charged like it should with yellow light on and going green hours later. My old batt took charge as well this way and was apparently still good. Just will have a back up battery now and reviewing this about charging issues to help others.

This battery for calculator stopped charging in 3 months or so and warranty is only 30 days. My son had SAT exam and had to rush to find new calculator. I would not buy or buy few as disposable/backup batteries since not reliable.