TI-Nspire CX II and TI-Nspire CX II CAS
– rechargeable battery included
– handheld uses TI battery w/o wire

TI-Nspire CX and TI-Nspire CX CAS
– rechargeable battery included
– Pre-2014 handheld uses TI battery with wire
– 2014 and newer handheld uses TI battery w/o wire

TI-Nspire Touchpad
– dark blue in color
– rechargeable battery not included
– uses TI battery with wire
– The battery is installed by removing the panel located on the back of the unit, behind the screen.

TI-Nspire CAS Touchpad
– black in color (with removable keypad)
– rechargeable battery not included
– uses TI battery with wire
– The battery is installed by removing the panel located on the back of the unit, behind the screen.

Vernier does not sell TI replacement batteries. You can purchase replacement batteries from the TI Online Store