Batteria 3.7L1200SPA 1500mAh per TEXAS INSTRUMENTS Ti-nspire cx CAS/CX II CAS
Capacity: 1500mAh 5.5Wh. If run the battery shut down often, it will shorten the battery life. Remove the battery for a while. A: Remove the battery for a while. Otherwise, it can be repaired through manufacturer if under warranty.