Disappointing Performance from Ugreen Uno Magnetic Power Bank (7.5W, 10,000mAh) – 1/5 Stars. Do NOT buy for Samsung Z Flip 6!
I had high hopes for the Ugreen Uno Magnetic Wireless Power Bank (10,000mAh, 7.5W) with my Samsung Galaxy Z Flip 6, but they were sadly misplaced.
After fully charging the power bank post-unboxing, I used it to charge my Flip 6 (4,000mAh battery) which was at 20%. The display estimated a 2-hour-40-minute charge to 100%, but after 5 hours, my phone reached only 70% (2,000mAh added) whilst the power bank dropped to 26% (7,400mAh consumed)!
This suggests an efficiency of ~27%, far below the expected 70–80% for wireless charging, meaning it couldn’t even provide one full charge (3,200mAh needed from 20% to 100%).
Frustrated, I tested pass-through charging by plugging the power bank into a wall socket whilst keeping my phone magnetically attached. Overnight, the power bank charged to 100%, but my phone’s battery dropped to 45%, indicating a serious issue.
Suspecting my phone case might be interfering, I removed it & charged directly, but the results were equally poor, ruling out the case as a factor.
I then tried the power bank’s USB-C wired charging (20W), which performed slightly better but was still slower than expected for a 10,000mAh unit.
Later, trying a top-up charge after daily errands, I found that the magnetic wireless charging failed entirely.
Despite the power bank indicating it was outputting power, my Flip 6 showed no charge reception.
This power bank’s performance was abysmal—slow, inefficient, & ultimately non-functional.
It might work better with iPhones due to native MagSafe support (for iPhones, there are tons of GOOD reviews!), but for my Flip 6, it was a complete failure.
Initially, I considered keeping it despite the issues, rating it two stars for partial functionality. However, after it stopped charging altogether, I can only give it one star.
The concept & design (e.g., foldable stand, TFT display) are appealing, but the execution is severely lacking. I plan to return it & cannot recommend it to Flip 6 users.
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