How to Replace a TI-Nspire CX Battery

Click here to get a new TI-Nspire rechargeable battery on eBay.

I’ve put together simple video tutorial on how to change the rechargeable battery on the TI-Nspire CX (or CX CAS). You won’t need anything but a set of mini screwdrivers and a new battery. As I say in the video, this is a fairly simple procedure which I’ve done many times without any problems. However, any time you take the calculator apart, there is a chance something could go wrong, so proceed at your own risk.

You could end up needing to do a battery pull for several reasons. Sometimes, the Nspire is acting strange, and a factory reset doesn’t do the trick. I’ve also had occasions where the battery meter reading 25% when the battery was actually completely charged, and a battery pull seems to reset the meter.

On the other hand, if your old rechargeable battery is shot, it’s not expensive to change out for a new one. The same battery that works for the older TI-Nspire Touchpad models in grayscale will also work the the CX models. Here is is on Amazon for under $20, which is the norm. If you’re more of an Ebay shopper, you can get it here.

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Lucas Allen

Lucas Allen

For more than a decade, Lucas Allen was a high school math teacher and math team coach in Illinois. His 2012 Morton High School math team won the Illinois state championship. Recently, he made the jump from public education to the corporate world and is now working as a data scientist. He is interested in just about all forms of technology, including the TI-Nspire, Nexus devices, R, MOOCs, and more. You can follow , and if you are nice, he will probably follow you back.

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