We are aware that some rechargeable calculators are displaying a "validating OS" message or not holding a charge. Customers in the US who have this happening with their calculators should place an order below to receive a free replacement battery by mail, which should resolve the situation.
Please ensure your calculator meets the following criteria to be eligible for a replacement battery:
You purchased a calculator in the last two years that is either:
A TI-84 Plus CE calculator displaying a "Validating OS" message, continuously rebooting, and/or flashing a white screen.
OR
A TI-Nspire™ CX II or TI-Nspire™ CX II CAS calculator that will not hold a charge, powers on when connected to a power source, and/or immediately shuts down when unplugged.
You have charged the calculator a minimum of three hours.
You have not already received a replacement battery for this calculator.
If you do not meet the above criteria and/or you have more than five calculators that need supporting, please call us at 1-800-TI-CARES. For international support visit education.ti.com/support/worldwide.
Canadian residents who need one battery only may fill out a request form.
We are sorry for the inconvenience. In addition to the replacement battery, we are offering all impacted customers access to our online calculator software for one year free of charge.
Select the quantity of rechargeable batteries (order for up to five calculators) and software licenses, then click ADD TO CART for each item. At the shopping cart, click CHECKOUT, then you will be asked to create an account.
This battery is compatible with the TI-Nspire™ CX II, TI-Nspire™ CX II CAS, TI-84 Plus CE, and TI-84 Plus CE Python. This form is limited to support five calculators, if you have more than five calculators that need supporting, please call us at 1-800-TI-CARES.
The TI-84 Plus CE online calculator emulates and allows you to use the key functionality of the TI-84 Plus CE graphing calculator on a computer. To support you while you wait for your battery replacement to arrive, please add this software to your cart.
The TI-Nspire™ CX II online calculator emulates and allows you to use the key functionality of the TI-Nspire™ CX II graphing calculator on a computer. To support you while you wait for your battery replacement to arrive, please add this software to your cart.
Control your cookie preferences
You can control your preferences for how we use cookies to collect and use information while you're on TI websites by adjusting the status of these categories.
Category
Description
Allow
Analytics and performance cookies
These cookies, including cookies from Google Analytics, allow us to recognize and count the number of visitors on TI sites and see how visitors navigate our sites. This helps us improve the way TI sites work (for example, by making it easier for you to find information on the site).
Advertising and marketing cookies
These cookies enable interest-based advertising on TI sites and third-party websites using information you make available to us when you interact with our sites. Interest-based ads are displayed to you based on cookies linked to your online activities, such as viewing products on our sites. We may also share this information with third parties for these purposes. These cookies help us tailor advertisements to better match your interests, manage the frequency with which you see an advertisement, and understand the effectiveness of our advertising.
Functional cookies
These cookies help identify who you are and store your activity and account information in order to deliver enhanced functionality, including a more personalized and relevant experience on our sites. If you do not allow these cookies, some or all site features and services may not function properly.
If you do not allow these cookies, some or all of the site features and services may not function properly.
Social media cookies
These cookies allow identification of users and content connected to online social media, such as Facebook, Twitter and other social media platforms, and help TI improve its social media outreach.
Strictly Necessary
These cookies are necessary for the operation of TI sites or to fulfill your requests (for example, to track what items you have placed into your cart on the TI.com, to access secure areas of the TI site, or to manage your configured cookie preferences).
Always On
TI websites use cookies to optimize site functionality and improve your experience. To find out more or to change your preferences, see our cookie policy page. Click Agree and Proceed to accept cookies and enter the site.
