TI 84 Plus CE Battery (Replacement for Texas Instruments TI-84 Plus CE, 3.7V 1500mAh)
Quick take
This TI-84 Plus CE replacement battery is a 3.7V lithium-ion pack rated at 1500mAh, designed to match specific TI battery part numbers. Buyers commonly choose it to stop battery-related startup and OS validation issues, and many report smooth, no-fuss installation with the included tool.
The main caveat is compatibility: you should confirm the exact battery model and part number before ordering, since the TI-84 family includes similar variations.
Pros and cons
Pros
- Made for TI-84 Plus CE replacement use, with specific part number compatibility (3.7L1200SPA/3.7L12005SPA, P11P35-11-N01).
- 3.7V lithium-ion, 1500mAh (5.55Wh) capacity, packaged as a single-cell replacement.
- Includes an installation tool for swapping the back plate battery.
- Includes built-in protection features intended to help prevent overcharge, overheating, and short-circuit charging risks.
Cons
- Compatibility must be verified by checking the current battery’s model and part number.
- Battery ships partially charged for some buyers, so allow time for the recommended charge and discharge cycle for best performance.
- Some replacement-battery fixes depend on the root cause, so if the issue is not battery-related, swapping won’t address everything.
What buyers think
Buyer-review evidence is largely positive, with the clearest recurring theme being that the battery swap helps restore normal operation on TI-84 Plus CE units showing battery-related startup or OS validation problems. Many buyers also mention that the battery fits well and is straightforward to install, and several appreciate the included small tool for removing the back plate. A smaller number of comments focus on charge behavior, including getting enough initial power to boot when the original battery was too low to allow normal charging or startup.
Overall, the review evidence suggests this replacement battery is a practical fix for common “won’t properly start or charge” symptoms, but the amount of detailed reporting on long-term lifespan is still limited, so expected battery longevity may vary by usage and prior battery condition.
Key specs that matter for TI-84 Plus CE owners
If you are shopping for a TI-84 Plus CE battery replacement, these are the details most likely to determine whether the pack is a true match.
- Compatibility and part numbers: Designed to be compatible with TI-84 Plus CE replacement battery part number 3.7L1200SPA (also listed as 3.7L12005SPA) and P11P35-11-N01. Before you buy, open the calculator and verify the battery marking and part number.
- Battery type: Lithium-ion rechargeable cell.
- Voltage: 3.7V.
- Capacity: 1500mAh (rated at 5.55Wh).
- Form factor: Battery is listed at about 2.05 x 1.65 x 0.2 inches and approximately 24.7 g, black in color.
- Installation: Includes an installation tool and is described as plug-and-play.
Pros and cons in real life
When this battery replacement is a good fit
- You need a TI-84 Plus CE specific battery and can confirm the exact battery part number on your current unit.
- You want a replacement that includes an installation tool so you are not hunting for the right screwdriver.
- Your calculator is showing symptoms that commonly point to a weakening battery, like trouble powering up or OS-related validation behavior after repeated use.
When you should pause before buying
- If you cannot confidently match the existing battery’s model and part number, you risk ordering the wrong variation.
- If your problem is likely hardware or firmware-related rather than power-related, a battery swap may not resolve it.
- If you expect “instant perfect performance,” note that recommended cycling may matter. Some buyers report receiving the battery with limited charge, then performance improves after charging cycles.
Installation and first-charge expectations
This replacement is intended for straightforward installation with the included tool. For best results, plan to follow the typical first-use guidance of charging after initial setup, and recognize that performance and usable runtime may improve after a few complete charge and discharge cycles.
Practical tip: If your calculator previously struggled to boot or charge, be patient with the first charge period. Reviews also suggest that a battery with enough initial charge can make the difference between a unit that can power up versus one stuck in a low-power loop.
Is the TI 84 Plus CE Battery worth it?
If you own a TI-84 Plus CE and your internal battery is failing, this replacement is built around the right voltage and capacity (3.7V, 1500mAh) and targets specific TI battery part numbers. The buyer feedback aligns with that intended use, especially around restoring normal startup and easing OS validation symptoms after replacing the battery.
For best value, treat this as a targeted repair part. Verify compatibility first, then plan for a short “settling in” period with the recommended charge cycle approach.
Alternatives to consider (by what you care about)
- If you prioritize matching accuracy: Look for replacements that explicitly list your exact battery part numbers, not just “TI-84” in general.
- If you prioritize convenience: Choose options that include a screwdriver or installation tool, since opening the back plate is required for any internal battery replacement.
- If you prioritize budget: Compare total cost including any extra tools you may need to source, since installation is part of the repair workflow.
FAQs
What TI-84 Plus CE batteries is this replacement compatible with?
It is intended for TI-84 Plus CE replacement battery models with part numbers listed as 3.7L1200SPA (also referenced as 3.7L12005SPA) and P11P35-11-N01. Check the battery label inside your calculator before ordering.
What are the voltage and capacity?
The replacement battery is rated at 3.7V and 1500mAh (5.55Wh).
Does it include the tool needed for installation?
Yes. The package is described as including an installation tool to help remove the calculator’s back plate and complete the battery swap.
Will this fix OS or startup validation issues?
Many buyers report that swapping to this battery helps clear battery-related OS validation or startup problems on TI-84 Plus CE units. However, if your issue is unrelated to the battery, replacing the battery may not resolve it.
How should I charge it after installing?
The guidance is to charge after setup and to allow a few complete charge and discharge cycles to reach full performance and service life. Some shipments may arrive with less charge, so plan for the initial charging period.
Specifications
| Product Title | TI 84 Plus CE Battery - Replacement for Texas Instruments TI-84 Plus CE Battery - Part No 3.7L1200SPA, P11P35-11-N01 3.7V 1500mAh |
|---|---|
| Category | Electronics > Accessories & Supplies > Office Electronics Accessories > Calculator Accessories |
| Brand | oliadeo |
| Manufacturer | oliadeo |
| Model Name | TI-84 |
| Model Number | TI-84 |
| Item Weight | 24.7 Grams |
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
| Warranty Description | 2-year warranty |
| Battery Cell Type | Lithium Ion |
| Battery Capacity | 1500 Milliamp Hours |
| Voltage | 3.7 Volts |
| Reusability | Rechargeable |
| Compatible Phone Models | TI-84 Plus CE |
| Unit Count | 1.0 Count |
| Battery Weight | 25 Grams |
| Antenna Location | TI-84 Plus CE |
| Battery Cell Composition | Lithium Ion |
| Recommended Uses For Product | TI-84 Plus CE |
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