Common Calculator Questions

Texas Instruments' Graphing Calculators have evolved over the years to be rechargeable and have a backlit screen. With these feature improvements, regular AAA batteries were no longer going to cut it. TI switched to using rechargeable lithium-ion batteries.

There are two types Texas Instruments Rechargeable Graphing Calculator Batteries.

One with a wire (or pigtail) and one without the wire (or pigtail).