TI-30X battery

2 × 1.5V alkaline button cell

The TI-30X takes two LR44 alkaline button cells. If your back label says TI-30Xa or TI-30X IIS, open that model page instead — the cell type is different.

Printed IDs: TI-30X

Based on: Texas Instruments documentation
Last checked: 7 October 2026
Size: 11.6 × 5.4 mm
Voltage: 1.5 V
Rechargeable: Not supported

How to replace it

Notes	Follow TI guidebook / support article for your model.

Sources

Last checked 7 October 2026

TI KB Solution 12685 — scientific calculator battery table
Manufacturer support · education.ti.com

Find more Texas Instruments manuals →How we check sources

Need a LR44?

Texas Instruments TI-30X uses 2 × LR44.

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