energup 40Volt Max 3A Replacement for Black and Decker 40V Battery, LBX2040 LST136 LBXR2036 LBXR36 LHT2436 LCS1240 LBX1540 LBX36 LSWV36 LST540 LST136W for Black+Decker 40V Lithium Battery

energup 40Volt Max 3A Replacement for Black and Decker 40V Battery, LBX2040 LST136 LBXR2036 LBXR36 LHT2436 LCS1240 LBX1540 LBX36 LSWV36 LST540 LST136W for Black+Decker 40V Lithium Battery

ASIN: B07R55S5D7
Analysis Date: Jan 31, 2026 (re-analyzed Jan 31, 2026)

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Review Analysis Results

B
Authenticity Grade
12.00%
Fake Reviews
3.21
Original Rating
3.00
Adjusted Rating

Analysis Summary

Based on a thorough analysis of these 15 reviews, the overwhelming majority (approximately 88%) appear to be genuine customer experiences. All reviews are marked as verified purchases, which significantly increases their authenticity likelihood. The reviews display a natural distribution of ratings (5 five-star, 4 four-to-three-star, and 6 one-to-two-star reviews) that reflects real user experiences with a replacement battery product, where performance can vary based on individual usage patterns and product batches.

Strong evidence of authenticity includes numerous reviews with specific personal context and detailed usage scenarios. Review #3 provides a multi-year history with Craftsman tools and mentions the 'dreaded red light' specific to battery failures. Review #1 explains the need for a backup battery during 'heavy leaf fall' with a Black and Decker mulcher. Review #4 offers a detailed failure account with charging attempts and includes an update about seller interaction. Review #10 describes compatibility issues with a specific trimmer model (LSt136) and mechanical release problems. These detailed, situation-specific accounts are hallmarks of genuine reviews.

A few reviews raise minor concerns due to their brevity and generic phrasing. Review #2 ('Good as OEM. Great price. Work great.') and Review #5 ('Seems to be functioning well. Charges well and is durable.') are extremely brief and lack personal context, though their verified status and non-excessive positivity keep them in the 'likely genuine' category. There are no clear patterns of coordinated manipulation, repetitive marketing language, or suspicious timing across the reviews.

In summary, this review set strongly reflects authentic customer feedback for a replacement battery product. The detailed negative reviews with specific failure modes and the detailed positive reviews with personal tool histories provide excellent balance. While two reviews are somewhat generic, they don't demonstrate clear manipulation patterns. The overall impression is of legitimate customers sharing varied experiences with a product that has some quality consistency issues, as evidenced by both satisfied and dissatisfied verified purchasers.

Key patterns identified in the review analysis include: Verified purchase status for all reviews, Natural rating distribution (5/5/6 across high/medium/low), Specific tool model and usage scenario details in genuine reviews.

Review Statistics

2,629
Total Reviews on Amazon
-0.21
Rating Difference

Price Analysis

This is a budget-priced third-party replacement battery for Black+Decker 40V tools. The 3.21/5 rating (2629 reviews) is concerning and suggests inconsistent quality—many users report premature failure. Only consider if the price is significantly lower than genuine alternatives, and prioritize sellers with good return policies.

MSRP Assessment

Estimated MSRP: $89.99
Source: Market research
Amazon Price: Unable to compare

Market Position

Positioning: Budget
Alternatives Range: $65-$150
Value: This third-party replacement battery offers significant cost savings over genuine Black+Decker batteries, but the low rating suggests potential quality trade-offs.

Buying Tips

Best Time to Buy: Best prices often during major sales events (Prime Day, Black Friday) or when bundled with tools.
Deal Indicators: Price below $70, bundled with charger, verified positive reviews about battery life, seller with high ratings.
Watch For: Extremely low price (under $50) may indicate counterfeit or poor-quality cells; check recent reviews for performance complaints.
Price analysis generated by AI based on product category and market research. Actual prices may vary. Last analyzed: Jan 31, 2026

Understanding This Analysis

What does Grade B mean?

This product has good review authenticity with minor concerns. While most reviews appear genuine, we detected some patterns that warrant mild caution.

Adjusted Rating Explained

The adjusted rating (3.00 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 (3.21 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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