Keep your Texas Instruments graphing calculator powered and ready for action with this TI replacement battery—compatible with 3.7L1200SPA, 3.7L12005SPA, and 3.7L12005SPB models. Designed to fit the TI‑Nspire CX II (including CX II CAS), TI‑84 Plus CE, TI‑84 Plus C Silver Edition, and over 95% of all other TI graphing calculators, this reliable lithium‑ion battery delivers 3.7 V and 1,200 mAh of long‑lasting energy. It’s quick and easy to install, ensuring your calculator stays at peak performance during classes, exams, and homework.