In addition to the 4 AAA batteries that are used to power the new TI-Nspire with Touchpad and TI-Nspire CAS with Touchpad handheld devices, you can now extend battery life with the TI-Nspire Rechargeable Battery (sold separately). It offers up to 100 hours of power for both TI-Nspire and TI-Nspire CAS handhelds between charges.
How to recharge your TI-Nspire Rechargeable Battery (must be installed in the handheld)
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Connect to your computer via the USB port
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Use the power adapter (sold separately)
There are three ways to power your TI-Nspire with Touchpad handheld:
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The TI-Nspire Rechargeable Battery only
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A combination of the TI-Nspire Rechargeable Battery and four AAA alkaline non-rechargeable batteries
