LISEN 0.3‘’ Ultra Slim MagSafe Portable Charger,5000mAh Wireless Card Slim MagSafe Battery Pack iPhone 17 Air Accessories,Magnetic Power Bank for iPhone 17 Pro Max Plus Air/16/15/14/13/12，Pearl
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AI Verdict
A 0.3-inch thick MagSafe power bank with an advertised 5000mAh capacity, but user tests show it delivers around 2800mAh at 2.5-3.5W wireless charging, making it suitable for emergency iPhone top-ups.
This power bank is a situational fit because its 0.3-inch thickness and 104g weight make it exceptionally portable for MagSafe-compatible iPhones. However, user tests indicate a significantly lower actual capacity of 2800 mAh and wireless charging speeds of 2.5-3.5W, which means it's best for quick, emergency top-ups rather than substantial recharges.
If you need more reliable capacity and faster wireless charging, look for power banks with verified 5000mAh+ actual output and 7.5W or 15W Qi2 wireless charging speeds.
Regret Score™
High RiskLower is better — measures purchase-regret risk from real buyer complaints, review credibility, and product maturity
Issues discovered after purchase
Critically weak dimension
Amazon rating vs actual quality
Chance this product isn't for you
Pros
- Measures 0.3 inches thick, making it thinner than an iPhone 15.
- Weighs 104g, offering mobile freedom without significant bulk.
- Features FCC, UL, TUV, DOE, CEC, UN, and RoHS certifications for safety.
- Includes strong magnets for a secure connection to MagSafe-compatible iPhones.
- Advertises a 37℉ temperature reduction due to newer heat shields.
Cons
- Actual wireless charging speed measured at approximately 2.5-3.5W, significantly lower than the advertised 7.5W.
- Actual battery capacity tested at 2800 mAh, not the advertised 5000 mAh.
- Reported to 'feel cheap' by users.
- Lacks a bottom magnet, which can affect stability with some cases.
- Not compatible with non-MagSafe cases, potentially causing heating issues.
- Charging speed decreases after the phone reaches 75% battery.
Dimension Scores
Despite advertised 7.5W wireless, user tests show actual wireless charging at 2.5-3.5W, which is below average for MagSafe power banks.
While it has numerous safety certifications, user feedback indicates the product 'feels cheap' and lacks a bottom magnet for full stability.
It offers MagSafe compatibility for iPhone 12-17 series, but its strict incompatibility with non-MagSafe cases limits its versatility.
At 0.3 inches thick and 104g, it is exceptionally thin and light, making it highly portable for daily carry.
Best For
- Commuting to class or work for a quick power boost.
- Short trips where minimal bulk is essential.
- Emergency top-ups for iPhone 12-17 series devices.
- Users prioritizing an ultra-slim profile over raw charging power.
Not Recommended For
- Extended multi-day travel without access to wall outlets, due to limited actual capacity.
- Users who frequently play games while charging, as this is advised against.
- Anyone needing to fully charge larger iPhone Pro Max models multiple times.
Watch Out For
- Actual capacity tested at 2800 mAh, not the advertised 5000 mAh, meaning it provides less than a full charge for many modern iPhones.
- Wireless charging speed was measured at 2.5-3.5W, which is considerably slower than the advertised 7.5W wireless charging.
- Some generic cases cause the power bank to sit at an angle, preventing a secure MagSafe connection.
- The product 'feels cheap' according to user feedback, raising concerns about long-term durability.
- It lacks a bottom magnet, which can lead to less secure attachment compared to power banks with full magnetic arrays.
Full Specifications
| ASIN | B0FF4L98XF |
| Brand | LISEN |
| Color | White |
| Batteries | 1 Lithium Polymer batteries required. |
| Item Weight | 5.6 ounces |
| Manufacturer | LISEN |
| Connector Type | USB Type C |
| Special Feature | Over Charging Protection, Pocket Size, Slim, Wireless Charging |
| Battery Capacity | 5000 Milliamp Hours |
| Special features | Over Charging Protection, Pocket Size, Slim, Wireless Charging |
| Item model number | 2E421 |
| Product Dimensions | 2.6 x 0.38 x 3.9 inches |
| Other display features | Wireless |
What Buyers Say
The biggest surprise from user feedback is that this '5000mAh' power bank only delivers about 2800 mAh in real-world tests, and its wireless charging speed is a sluggish 2.5-3.5W, not the advertised 7.5W. People are picking it up for its super thin profile, but then getting let down by how little actual power it provides and how slowly it charges their phone. It also 'feels cheap' to some, and the lack of a bottom magnet means it doesn't always sit perfectly on the phone, especially with certain cases.
“Man, I bought this 'cause it was so thin, but it barely charges my iPhone 15 Pro Max once and it takes forever, like what's up with that 5000mAh claim? Feels kinda flimsy too.”
Common Praise
- The 0.3-inch thinness is genuinely appreciated for its minimal bulk.
- The strong top magnets generally provide a secure initial attachment to the phone.
- Its light 104g weight makes it easy to carry in a pocket or bag.
- The inclusion of a USB-C to USB-C cable is convenient for wired charging.
Common Complaints
- Actual wireless charging speed is significantly slower than advertised, often around 2.5-3.5W.
- The real battery capacity is closer to 2800 mAh, not the stated 5000 mAh.
- Users report the product 'feels cheap' in hand.
- The absence of a bottom magnet can lead to an unstable connection, especially with some cases.
- Doesn't fit well with all MagSafe-compatible cases, sometimes sitting at an angle.
- Charging efficiency drops noticeably after the phone reaches 75% battery.
Ownership Tips
- After a few weeks, the actual charging performance is consistently slower than expected, especially wirelessly.
- The 'no bottom magnet' issue becomes more noticeable with daily use, causing the power bank to shift.
- The 'cheap' feel persists, making you question its long-term durability.
- You'll find yourself relying on the wired 20W charging more often for any real speed.
- The 2800 mAh real capacity means it's more of a 'get home' charger than a 'full day' extender.
Frequently Asked Questions
What is the actual battery capacity of this power bank?
While advertised as 5000mAh, user testing has shown the actual usable capacity to be around 2800 mAh.
How fast does it charge wirelessly?
The product advertises 7.5W wireless charging, but independent user tests measured the wireless charging speed at approximately 2.5-3.5W.
Is it truly 0.3 inches thick?
Yes, the LISEN power bank is specified to be 0.3 inches thick, making it thinner than an iPhone 15.
Will it work with my iPhone 13 Pro Max?
Yes, it is designed for MagSafe-compatible iPhones, including the iPhone 12 through 17 series.
Does it get hot while charging?
The product features heat shields to reduce temperature by 37℉, with normal operating temperatures between 96-115°F. It advises against playing games while charging to avoid excessive heat.
Can I use it with a phone case?
It is compatible with MagSafe-compatible cases. Using it with non-MagSafe cases may cause heating and an insecure connection.
Buying Guide
When you're looking at portable chargers, especially MagSafe ones, don't just look at the big 'mAh' number. That's the battery's raw capacity, but what actually gets to your phone is often much less, especially with wireless charging. You need to consider the actual output in watts and how much of that stated capacity is truly usable after conversion losses. Also, check if it has a strong magnetic connection that works with your specific phone and case setup.
battery_capacity (mAh)
This number tells you how much energy the battery can theoretically hold. However, due to energy loss during charging (especially wireless), a 5000mAh power bank might only deliver 60-70% of that to your phone, so look for real-world tested capacities.
watts (W)
This indicates how fast the charger can deliver power. Higher wattage means faster charging. For wireless, 7.5W is standard for iPhones, while 15W is faster (often requiring Qi2). For wired, 20W is a common fast-charging speed.
MagSafe
This isn't just about magnets; it ensures proper alignment for efficient wireless charging and a secure physical connection. If a charger isn't truly MagSafe-certified or has weak magnets, it can charge slowly or fall off easily.
Alternatives
If this charger's actual capacity or slow wireless charging is a dealbreaker, search for portable chargers with verified 15W Qi2 wireless charging and user-confirmed actual capacities closer to their advertised mAh, even if it means a slightly thicker profile.
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