Experience the power and convenience of the 1200mAh 3.7V Li-ion battery for your TI-Nspire CX or TI-Nspire CX CAS graphing calculator. This compact battery, measuring just 1.9 x 2.09 inches, ensures a long-lasting charge, providing up to 4.81Wh of power. Ideal for students and professionals, it's designed to keep your calculator ready for extended use.