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Amazon.com > Cell Phones & Accessories > Accessories > Maintenance, Upkeep & Repairs > Replacement Parts > Batteries
Samsung Galaxy S4 2600mAh B600BBU Replacement Battery for all Samsung Galaxy S4 Devices
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This report was last updated 9/21/2019.
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Report Info:
Note: While Amazon.com claims 8,646 Ratings, we counted 8,653 Reviews available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Warn Overall Grade
FAIL Deleted Reviews
FAIL Suspicious Reviewers
FAIL Word Count Comparison
FAIL Phrase Repetition
FAIL Overlapping Review History
WARN Rating Trend
WARN Reviewer Participation
PASS Unverified Purchases
PASS Reviewer Ease
PASS Brand Repeats
PASS Incentivized Reviews
Most Trusted Reviews
I don't know how anyone can guarantee this to be ... [Go to full review]
Nov 11, 2014
100%
TRUST
TRUST
- Unverified Purchaser
- Take-Back Reviewer (14 deleted Reviews; avg. rating: 4.2)
- Critical Reviewer (avg. rating: 4.0)
Least Trusted Reviews
Works great! [Go to full review]
Feb 3, 2016
5%
TRUST
TRUST
- Verified Purchaser
- Created on a high volume day
- Overrepresented word count (2 words)
- Take-Back Reviewer (19 deleted Reviews; avg. rating: 5.0)
- Overrepresented Participation (posted 14 Reviews)
- Easy Grader (avg. rating: 5.0)
Analysis Details
Fail Deleted Reviews
We discovered a total of 698 deleted Reviews for this product, with an average rating of 4.1. Even though deleted reviews don't affect the average rating, the fact that action was taken to delete reviews raises some red flags about the integrity of the reviews for the product as whole.
There are a few limitations to keep in mind regarding the Deleted Reviews test:
- We don't have a magic ability to collect every single deleted review; we can only identify reviews as deleted if we collect them on one date and then notice they are no longer visible on a subsequent date.
- We have no information on reviews that were never published in the first place.
- We also don't know why these reviews were removed. It could be action from the platform, personal decision by the review author, part of an entire account closure, even some data error on our part, etc.
Fail Suspicious Reviewers
Never-Verified Reviewers
87 of the 8,653 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 3.0 while the reviewers who have written at least one verified purchase review rated this product an average of 3.7. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.
Take-Back Reviewers
2,075 of the 8,653 reviewers have had at least one of their past reviews for another product deleted. The Take-Back Reviewers have rated this product an average of 3.9 while the reviewers who don't have any deleted reviews in their history have rated this product an average of 3.6. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.
Single-Day Reviewers
226 of the 8,653 reviewers have written multiple reviews but posted all of them on a single day. The Single-Day reviewers have rated this product an average of 4.0 while all other reviewers rated this product an average of 3.7. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.
Fail Word Count Comparison
-
- 62%
- Have an overrepresented word count
In the graph above, we can see the distribution of review word counts for this product and the expected distribution for this category. We see the following 2 groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 5,357 reviews (or 62%) are within an overrepresented word count group. These reviews have rated this product an average of 4.1, while all other reviews have rated this product an average of 3.0. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.
Fail Phrase Repetition
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.
Common Phrases in Reviews:
185 reviews
(3.4/5)
(3.4/5)
155 reviews
(1.6/5)
(1.6/5)
157 of the 8,653 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 2.5 while reviews without substantial repetitive phrases rated this product an average of 3.7. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.
Fail Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
1% also reviewed:
Samsung OEM Adapter with USB Sync Charging Cable... by SAMSUNG
1% also reviewed:
Amazon Prime Video by Amazon.com
1% also reviewed:
Fire TV Stick bundle with Echo Dot (2nd Gen) -... by Amazon
1% also reviewed:
Echo Dot (2nd Generation) - Smart speaker with... by Amazon
Does not include products
from the same brand
from the same brand
589 of the 8,653 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.1 while the reviewers who have a more unique product review history rated this product an average of 3.7. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.
Warn Rating Trend
-
- 28%
- Created over 162 days
We counted 8,653 reviews for this product over the span of 2,293 days, an average of 3.8 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 11 or fewer reviews on any given day.
However, we see the following 162 days exceeding this threshold:In total, we found that 2,420 reviews were created on just 162 days. This is an excessively high number of reviews submitted on these high volume days.
Warn Reviewer Participation
-
- 66%
- From reviewers with an overrepresented participation
We see the following 2 participation groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 5679 reviewers (or 66%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass Unverified Purchases
263 of the 8,653 total reviews for this product are unverified purchases. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Unverified purchases may be the result of Kindle Unlimited readers, buyers who didn't pay full price, or reviewers who did not purchase the product at Amazon. Read more about our Unverified Purchases test.
Pass Reviewer Ease
The ease score is the average rating for all reviews that a given reviewer submits. The average ease score for reviewers of this product is 4, while the average ease score for reviewers in this category is 4.4.
4.0 Product's Average Ease Score
4.4 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass Brand Repeats
Brand Repeaters
542 of the 8,653 reviewers have reviewed other products for this brand. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.
1 of the 8,653 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.