Battery Precautions - Texas Instruments TI-89 Titanium User Manual

Important OS download information
New batteries should be installed before beginning an OS download.
When in OS download mode, the APD feature does not function. If you leave your
calculator in download mode for an extended time before you actually start the
download, your batteries may become depleted. You will then need to replace the
depleted batteries with new batteries before downloading.
You can also transfer the OS to another TI-89 Titanium using a USB unit-to-unit cable . If
you accidentally interrupt the transfer before it is complete, you will need to reinstall the
OS via a computer. Again, remember to install new batteries before downloading.
Please contact Texas Instruments as described in Service & Support Information, if you
experience a problem.

Battery Precautions

Take these precautions when replacing batteries:
• Do not leave batteries within the reach of children.
• Do not mix new and used batteries. Do not mix brands (or types within brands) of
batteries.
• Do not mix rechargeable and non-rechargeable batteries.
• Install batteries according to polarity (+ and –) diagrams.
• Do not place non-rechargeable batteries in a battery recharger.
• Properly dispose of used batteries immediately.
• Do not incinerate or dismantle batteries.
Getting Started 66