Hitachi UC18YRL Universal Charger for 7.2-to-18-Volt Ni-Cad Ni-Mh Lithium-Ion Batteries
More product info
From Hitachi
Refresh the report to view the most up-to-date data available:
Refresh Report
Report Card
Most Trusted Reviews
TRUST
- Verified Purchaser
- Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
- Easy Grader (avg. rating: 4.8)
Least Trusted Reviews
TRUST
- Verified Purchaser
- Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
- Brand Repeater (2 of 32 reviews for this brand; avg rating: 5.0)
- Easy Grader (avg. rating: 4.5)
Analysis Details
One-Hit Wonders
17 of the 143 reviewers have only reviewed this product. While this is more One-Hit Wonders than we'd expect to see, it does not appear to have a significant impact on the overall rating.
Take-Back Reviewers
17 of the 143 reviewers have had at least one of their past reviews for another product deleted. This is an excessively large percentage of Take-Back Reviewers which may indicate unnatural reviews.
Single-Day Reviewers
10 of the 143 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 3.7 while all other reviewers rated this product an average of 4.4. 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.
3% also reviewed:
Grove Square Hot Cocoa, Milk Chocolate, 24 Single... by Grove Square Hot Cocoa
3% also reviewed:
Hitachi 326241 EBM1830 18-Volt Lithium-Ion 3.0 Ah... by HITGN
2% also reviewed:
Belkin 1-Outlet Home Series SurgeCube - Grounded... by Belkin
2% also reviewed:
VideoSecu 24 inch Extension Full Motion Swivel... by VideoSecu
2% also reviewed:
Honeywell Turboforce Fan, Ht-900, 11 inch by Honeywell
2% also reviewed:
UltraFire 7w 300lm Mini Cree Led Flashlight Torch... by ULTRAFIRE
2% also reviewed:
SanDisk Ultra microSDHC Card Plus Adapter by SanDisk
2% also reviewed:
Syma S107G 3 Channel RC Helicopter with Gyro, Blue by SYMA
from the same brand
22 of the 143 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.8 while the reviewers who have a more unique product review history rated this product an average of 4.3. 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.
-
- 74%
- 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 106 reviewers (or 74%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
-
- 0%
- Created on high-volume days
Read more about our Rating Trend test.
6 of the 143 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.
-
- 0%
- Have an overrepresented word count
Read more about our Word Count Comparison test.
14 of the 143 total reviews for this product use substantial repetitive phrases between them. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
4.3 Product's Average Ease Score
4.4 Category's Average Ease Score
Read more about our Reviewer Ease test.
Brand Repeaters
-
- 0%
- Admitted to receiving an incentive
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
- 0
- Reviews have been deleted
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.