Ti-nspire Rechargeable Battery

• TI-Nspire Rechargeable Battery

I have a TI-nspire CAS and this product is great at saving the 4 AAA batteries that you can also install in the unit. It also comes with an AC power adapter so you end up with an extra one. :-)

This product is NOT necessary if you buy a new TI-nspireCX-CAS (the color/backlit model). It comes with this kit included. It has to since it has no accommodation for AAA batteries.

This battery works well in both systems but is only needed for the older model, unless the product is being purchased to replace a failed battery.

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Battery was quick and easy to install. Recharges very quickly. Saved a lot of money by not having to buy AAA batteries.

* You can put AAA batteries and have the rechargeable battery in at the same time.

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This is a very nicely designed accessory battery for the TI-Nspire line of calculators. It provides extra runtime since it works either in conjunction with the built-in AAA batteries or as a stand-alone rechargeable solution.

It was easy to install, charged quickly, and after a long week of use, both the AAA batteries and this rechargeable one still read 100% charged. Very convenient and reassuring.

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Not much to say in this review. The battery is fairly easy to install--make sure you have a small Philips screwdriver--and once it's fully charged it will last for a very, very long time. In fact, I have to wonder if a rechargeable battery is really necessary for this calculator. The calculator will still run for quite a while on AAA batteries, so slapping in a rechargeable battery that will only very rarely have to be recharged may be a little excessive. Even so, if you don't want to suffer even the most remote possibility that your calculator will run out of juice, then yes, go ahead and buy the rechargeable battery. You don't have to remove any AAA batteries you've already put in the device. Instead, you can use those as a backup in the unlikely event that your rechargeable runs out. That way, you'll pretty much annihilate the chances of the calculator running out of power during a test or some other inopportune time.

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This rechargeable battery is the only way to use the calculator. I bought this for my teen to use in advanced math classes in jr high, and specifically picked the calculator model to follow him through high school. The rechargeable battery is hands down the best idea to keep the calculator running. It's place is right next to his phone so he can keep it charged up and always know where it is.

Being able to find it when he needs it, is of course a very important consideration for a jr high student...