TI 84 Plus CE Battery - Replacement Battery for Texas Instruments TI-84 Plus CE, TI-84 CE, fits Part No 3.7L12005SPA, P11P35-11-N01, 3.7V 1300mAh

TI 84 Plus CE Battery - Replacement Battery for Texas Instruments TI-84 Plus CE, TI-84 CE, fits Part No 3.7L12005SPA, P11P35-11-N01, 3.7V 1300mAh

ASIN: B09SH31KL4
Analysis Date: Oct 22, 2026

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Review Analysis Results

A
Authenticity Grade
5.00%
Fake Reviews
4.38
Original Rating
4.30
Adjusted Rating

Analysis Summary

The vast majority of reviews for this battery replacement appear to be genuine, with only a negligible proportion showing any signs of manipulation. All reviews are verified purchases, and the content is highly specific to the product and user experiences, indicating authentic feedback.

Evidence of authenticity is strong across the board. Reviewers provide detailed personal stories, such as replacing a dead battery in a TI84 calculator, dealing with a daughter's calculator that wouldn't hold a charge, and troubleshooting a DOA calculator with a software issue. Many mention specific technical details like battery capacity, charging requirements, and compatibility. The reviews also include balanced perspectives, such as a 4-star review noting that the battery doesn't last as long as the original, and a 1-star review reporting a failure after several months. These are clear indicators of genuine, unbiased feedback.

There are no concerning patterns of manipulation. The reviews are not generic or repetitive; each has a unique context and level of detail. Even the shorter reviews are specific to the product's performance. The presence of a critical review further supports authenticity, as fake reviews often skew uniformly positive.

Overall, the reviews are highly authentic, with only a tiny fraction that could be questioned, but even those appear genuine upon closer inspection. The product seems to be a reliable replacement battery for TI calculators, with most users reporting successful outcomes and some noting minor drawbacks like initial charging needs or slightly lower capacity than the original.

Key patterns identified in the review analysis include: Verified purchases, Specific product details (TI84, charging, capacity), Personal stories and use cases.

Review Statistics

181
Total Reviews on Amazon
-0.08
Rating Difference
Editor's Analysis

Choosing a Reliable Replacement Battery for Your TI-84 Plus CE

When your TI-84 Plus CE graphing calculator stops holding a charge, a replacement battery can restore it to full functionality. This 3.7V 1300mAh battery is designed to fit specific part numbers like 3.7L12005SPA and P11P35-11-N01, so compatibility is the first thing to verify.

Key Considerations Before Buying

  • Confirm your calculator's model and battery part number before ordering. The TI-84 Plus CE uses a specific battery shape and connector, and this battery is listed for part numbers 3.7L12005SPA and P11P35-11-N01, so check your existing battery label.
  • Capacity matters for runtime between charges. At 1300mAh, this battery offers a standard capacity for the TI-84 Plus CE; higher-capacity cells may last longer but could be physically larger, so ensure fit.
  • Installation requires basic tools and care. The battery is typically accessed by removing the back cover and disconnecting a small connector; follow online guides to avoid damaging the calculator's internals.

What Our Analysts Recommend

Look for batteries that explicitly list your calculator model and part numbers, as this one does. Check for safety certifications like UL or CE, and prefer sellers that include clear installation instructions or diagrams. A warranty or return policy is also a good sign of quality.

Calculator Accessories Market Context

Market Overview

The market for calculator replacement batteries is niche but steady, driven by the long lifespan of graphing calculators like the TI-84 Plus CE. Many third-party manufacturers offer compatible batteries, but quality varies, and OEM options are limited.

Common Issues

Common problems include batteries that don't hold a charge after a few months, incorrect connectors that don't fit, and swelling that can damage the calculator. Some users report shorter runtime than the original battery, so capacity claims should be scrutinized.

Quality Indicators

Quality batteries use reputable cells and include protection circuits against overcharge and short-circuit. Look for sellers with positive feedback on battery longevity and fit, and avoid extremely cheap options that may lack safety features.

Review Authenticity Insights

Grade A Interpretation

With a Grade A authenticity rating and only 5.00% estimated fake reviews, this product's reviews are highly trustworthy. The adjusted rating of 4.30/5 from 181 reviews suggests consistent satisfaction among verified purchasers.

Trust Recommendation

You can rely on the reviews to gauge real-world performance, as the vast majority are genuine. Focus on reviews that mention installation experience and long-term battery life to set expectations.

Tips for Reading Reviews

When reading reviews, look for specifics like how long the battery lasts per charge and whether it fits snugly. Pay attention to reviews from users who have had the battery for several months, as initial impressions may not reflect durability.

Expert Perspective

This replacement battery appears to be a solid choice for reviving a TI-84 Plus CE, given its compatibility with specific part numbers and strong review authenticity. The 4.30/5 adjusted rating indicates most users are satisfied, though a few may experience variability in battery life. At 1300mAh, it should meet typical usage needs for students and professionals.

Purchase Considerations

Before buying, verify your calculator's battery part number and consider whether you need a higher-capacity battery for extended use. Also, factor in the cost compared to a new calculator, and check the seller's return policy in case of fit issues.

Comparing Alternatives

Shoppers should compare this battery with other replacement options that may offer higher capacity or additional safety certifications, as well as OEM batteries if available.

Price Analysis

This replacement battery sits in the mid-range of the third-party market, typically $15-$30, with a strong rating suggesting reliable performance. Since the current Amazon price is unknown, aim to buy under $20 and confirm part-number compatibility and seller reviews. Avoid unusually cheap listings, as battery quality varies significantly.

MSRP Assessment

Estimated MSRP: $25-$30
Source: Market research
Amazon Price: Unable to compare

Market Position

Positioning: Mid-range
Alternatives Range: $15-$35
Value: A 1300mAh third-party replacement with strong 4.38/5 ratings offers solid value versus OEM batteries, which are often pricier and harder to source.

Buying Tips

Best Time to Buy: Back-to-school season (July-September) may bring slight discounts as calculator accessory demand peaks; otherwise pricing is fairly stable.
Deal Indicators: A good deal is under $20 shipped; check for coupon clips or bundle offers. Compare mAh rating and warranty length before buying.
Watch For: Beware listings far below $12—may indicate low-capacity cells or poor quality. Verify seller reputation and that the part number (3.7L12005SPA) matches exactly.
Price analysis generated by AI based on product category and market research. Actual prices may vary. Last analyzed: Oct 22, 2026

Understanding This Analysis

What does Grade A mean?

This product has excellent review authenticity. Our AI detected very few suspicious patterns, suggesting the vast majority of reviews are genuine customer experiences.

Adjusted Rating Explained

The adjusted rating (4.30 stars) represents what we estimate this product's rating would be if fake reviews were removed. This product's adjusted rating is lower than Amazon's displayed rating (4.38 stars), suggesting positive fake reviews may be inflating the score.

How We Detect Fake Reviews

Our AI analyzes multiple factors: language patterns (generic vs. specific), reviewer behavior (history, timing), temporal anomalies (review clusters), verification status, sentiment authenticity, and statistical outliers. No single factor determines a review is fake - we look at the combination of signals.

Important Limitations

No automated system is perfect. Sophisticated fake reviews can evade detection, and some genuine reviews may be incorrectly flagged. Use this analysis as one data point in your purchasing decision, not the only factor. Reading actual review content yourself is always valuable.

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Questions about this analysis

What percentage of reviews are fake for this product?
5.00% of the analyzed reviews appear to be fake or inauthentic.
What is the authenticity grade for this product?
The product receives a grade of A based on review authenticity analysis.
How many reviews were analyzed?
8 reviews were analyzed for authenticity patterns.
What is the adjusted rating after removing fake reviews?
After removing suspicious reviews, the adjusted rating is 4.30 out of 5 stars.
How does this analysis help consumers?
This analysis helps consumers identify products with manipulated reviews, enabling more informed purchasing decisions based on genuine customer feedback.
Is this product priced fairly on Amazon?
Based on AI price analysis, this product is Unable to compare.
How is this product positioned in the market?
This product is positioned as a Mid-range option in its category.
What does the AI price analysis reveal?
This replacement battery sits in the mid-range of the third-party market, typically $15-$30, with a strong rating suggesting reliable performance. Since the current Amazon price is unknown, aim to buy under $20 and confirm part-number compatibility and seller reviews. Avoid unusually cheap listings, as battery quality varies significantly.

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