NASTIMA 14.4V 2600mAh Replacement Battery Compatible with Eufy RoboVac 11 11S Plus 11S 15C 15C MAX 20C 30C 30C MAX G10 Hybrid G20 G30 Tesvor X500 Lefant T700 and Ecovacs Deebot N79 N79S DN622

NASTIMA 14.4V 2600mAh Replacement Battery Compatible with Eufy RoboVac 11 11S Plus 11S 15C 15C MAX 20C 30C 30C MAX G10 Hybrid G20 G30 Tesvor X500 Lefant T700 and Ecovacs Deebot N79 N79S DN622

ASIN: B089KGP8QH
Analysis Date: Feb 8, 2026 (re-analyzed Feb 8, 2026)

As an Amazon Associate I earn from qualifying purchases.

Review Analysis Results

U
Authenticity Grade
0.00%
Fake Reviews
0.00
Original Rating
0.00
Adjusted Rating

Analysis Summary

No reviews could be extracted for analysis. This may occur when Amazon is actively blocking automated review collection, implementing anti-bot measures, or when the product genuinely has no customer reviews. Our system will automatically retry this analysis periodically to check if reviews become available.

Review Statistics

0.00
Rating Difference
Editor's Analysis

Choosing a Replacement Battery for Your Robotic Vacuum: Compatibility and Capacity Essentials

When selecting a replacement battery for robotic vacuums like those listed in the NASTIMA compatibility range, understanding voltage matching and capacity trade-offs is critical. This 14.4V 2600mAh lithium-ion battery must precisely match your vacuum's original specifications to avoid performance issues or damage.

Key Considerations Before Buying

  • Verify exact model compatibility beyond brand names—some Eufy RoboVac models (11, 11S, 15C) have subtle connector or firmware differences that third-party batteries may not accommodate.
  • The 2600mAh capacity represents a mid-range option; compare this to your original battery's rating to determine if you're gaining runtime, maintaining parity, or accepting a slight reduction.
  • Third-party batteries like NASTIMA often use different cell chemistry than OEM batteries, which can affect charge cycles and long-term performance in specific vacuum models.

What Our Analysts Recommend

Quality indicators include clear compatibility lists with specific model numbers (not just brand names), overcharge/over-discharge protection circuits, and cells from reputable manufacturers like LG or Samsung. Look for batteries with proper heat dissipation design since robotic vacuums generate significant heat during operation.

Vacuum Replacement Parts Market Context

Market Overview

The robotic vacuum replacement battery market is fragmented, with dozens of third-party manufacturers competing against expensive OEM parts, particularly for popular brands like Eufy and Ecovacs. Canadian consumers face limited local options, making Amazon a primary source but requiring careful vetting.

Common Issues

Common problems include incorrect voltage regulation causing vacuum electronics damage, poor cell balancing leading to premature capacity loss, and physical fit issues despite claimed compatibility. Many third-party batteries fail to maintain consistent voltage under the high-drain conditions of cleaning cycles.

Quality Indicators

Quality products feature UL-certified protection circuits, spot-welded (not soldered) connections between cells, and transparent information about cell origin. Better manufacturers provide actual capacity testing results rather than just theoretical ratings.

Review Authenticity Insights

Grade U Interpretation

The 'Grade U' with 0.00% estimated fake reviews indicates this product has no review history whatsoever—a significant data gap for consumers. This absence means there's no crowd-sourced verification of NASTIMA's compatibility claims or longevity performance.

Trust Recommendation

Without any verified purchase reviews, you must rely entirely on the manufacturer's specifications and return policy. Contact NASTIMA directly to confirm compatibility with your specific vacuum model before purchasing, and document your original battery's specifications for comparison.

Tips for Reading Reviews

For unreviewed products like this, search for the manufacturer name 'NASTIMA' across other battery products to gauge overall reputation. Look for detailed reviews mentioning long-term performance (6+ months) and compatibility verification with specific models like Eufy 30C MAX or Ecovacs N79S.

Expert Perspective

The NASTIMA battery presents a classic risk-reward scenario: potentially significant cost savings versus OEM batteries but with complete uncertainty about real-world performance. The broad compatibility list covering Eufy, Tesvor, Lefant, and Ecovacs models suggests a generic design approach rather than model-specific optimization. The 2600mAh rating is adequate for most mid-range robotic vacuums but may not match OEM runtime if cell quality differs. Without any user reviews, this product represents a complete unknown in terms of reliability and actual compatibility.

Purchase Considerations

Weigh the cost savings against your vacuum's value—risking a premium vacuum with an unproven battery may not be worthwhile. Consider whether your vacuum is still under warranty, as third-party batteries typically void battery-related coverage. Factor in the seller's return policy for compatibility issues, which are common with multi-model batteries.

Comparing Alternatives

Shoppers should compare this against OEM batteries and established third-party brands with verified reviews, even at higher price points.

Price Analysis

This appears to be a budget generic replacement battery with no established pricing history or reviews. Exercise caution due to the unknown brand and lack of customer feedback. Consider waiting for verified reviews or purchasing from sellers with strong return policies.

MSRP Assessment

Estimated MSRP: Unknown
Source: Unable to determine
Amazon Price: Unable to compare

Market Position

Positioning: Budget
Alternatives Range: CA$25-CA$65
Value: This generic replacement battery offers compatibility with multiple robot vacuum models at likely lower cost than OEM batteries.

Buying Tips

Best Time to Buy: Best prices often during Black Friday/Cyber Monday or Amazon Prime Day events.
Deal Indicators: Look for price under CA$30, bundled with charging cable or tools, or free shipping.
Watch For: Zero reviews and unknown brand raise quality concerns; verify seller return policy and warranty coverage.
Price analysis generated by AI based on product category and market research. Actual prices may vary. Last analyzed: Feb 8, 2026

Understanding This Analysis

What does Grade U mean?

Grade unavailable for this product.

Adjusted Rating Explained

The adjusted rating (0.00 stars) represents what we estimate this product's rating would be if fake reviews were removed. The ratings are similar, suggesting fake reviews aren't significantly impacting the overall 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.

Share This Analysis

Learn More About Fake Reviews

Analyze new product