COSYDUO

Slim Magnetic Battery Pack Pocket-Size 5000mAh Small Wireless Portable Charger Mini Magnetic Wireless Card Power Bank Fast Charging

315+ bought in the past month

$12.99$23.99

About this item

  • 【Pocket Size & Camera Friendly】 One of the smallest power bank 5000mAh wireless magnetic charger for iPhone. The mini portable charger is ideal for on-the-go lifestyle, as it is lightweight compact design, making it the best charging battery pack for travel essential. Unlike many other portable power bank, this powerful yet samll portable charger stays completely outside of the camera view when attached. (DOES NOT block the camera at all!)
  • 【Correct Usage】After we get the wireless magnetic power bank, press the button once, about 1-2 seconds, the indicator light will light up, and then put it on the back of the phone to charge. (please note: do not press twice in a row, just press once, pressing twice in a row means shutting down) After charging is completed, press the button twice in a row, about 1-2 seconds, the indicator light will go out, and the power bank will turn off
  • 【Charge in a Snap】Just attach this magnetic portable charger to your Phone! 7.5W charging for your iPhone 16/15/14/13/12 Series, 15W wireless 20W wired charging for all phones. The wireless battery pack for iPhone adopts the latest magnetic suction technology, charging immediately after snap. Align your phone and magnetic powerbank with a snap. Say goodbye to disconnection issues caused by wireless charging misalignment
  • 【PD20W Pass-Through Charging】The small phone charger 5000mAh with 20W USB-C port allows you to fast charge your phones, tablets and all upcoming USB-C devices to 50% in just 30 minutes. Plus, our pocket power bank can be fully charged in under 2 hours with a 18W PD charger (not included). It also supports pass-through charging, so you can charge your phone and this small battery pack at the same time. so your phone stays charged up at home or on the go
  • 【Strong Magnetic Lock】Built-in strong magnets keep the portable magnetic charger in place and prevents the mini compact battery pack from slipping off of your phone, the mag safe wireless charger firmly attaches to the back of the iPhone 16/16 pro/16 Pro max/15/15 pro/15 Pro max/ 14 /13/ 12 so you can single-handedly take selfies, make calls, and more
$12.99
Was $23.99Save $11.00

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Product details

Connector TypeUSB Type C
BrandCOSYDUO
Battery Capacity5000 Milliamp Hours
ColorGrey
Special FeatureFast Charging, Pocket Size, Slim, Wireless Charging

Technical specifications

product_dimensions3.23 x 2.32 x 0.43 inches
item_weight0.004 ounces
item_model_numberKL-YD48
batteries1 Lithium Polymer batteries required. (included)
best_sellers_rank#167,468 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #2,350 in Cell Phone Portable Power Banks
special_featuresFast Charging, Pocket Size, Slim, Wireless Charging
other_display_featuresWireless
colorGrey
manufacturerCOSYDUO
date_first_availableMarch 28, 2024

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Customer reviews

3.249 ratings
★★★★★

AWESOME

Rob B.August 1, 2024

Works great on my iPhone 13 Pro: Small, compact, easy to understand lights, doesn’t impede other functions like camera, doesn’t protrude beyond the phone on the bottom, works perfectly through MagSafe compatible case. Read more

★☆☆☆☆

Do not buy!

Jackie T. GainesAugust 10, 2024

I bought two of these wireless chargers and neither of them worked. I missed the return date because of illness and I will have to just thro them away. Money wasted. I wish I could give no star for rating. Never could use. Read more

★★★★☆

After some trial and error it is working good

RossTVMay 29, 2024

A power bank that is compact, magnetic and seamlessly attaches to the MagSafe spot on my iPhone is a great idea. At first, I had some challenges with this device but continuing to try and figure it out… paid off. The first few times I tried to use this product, the power bank was getting extremely hot. This happened two or three times and I couldn’t understand why. Honestly, it was so hot that I didn’t feel comfortable leaving it attached to my phone . Eventually, when connecting the power bank to my phone, instead of attaching it with the power lights and button facing up, towards the top of my phone, I flipped it the opposite direction with the power lights and button pointing down, towards the bottom of my phone. Oddly enough, this completely resolved the overheating issue. I’m really not sure what the difference is but I’m happy that the power bank is now working correctly. It’s extremely convenient and allows me to top up my phones battery a couple times a day. With a total of 5000mAh, turning it on when my phone is around 60% brings my phone back to around 100%. I can do that twice, off one full charge of this magnetic power bank. Now that it is functioning properly, it truly is a handy device. Eliminating cables and being able to charge up my phone on-the-go is a huge benefit. If you’re tired of being tethered to a cable, anytime you need to add some extra power to your phone, this magnetic battery bank will certainly fix that for you. I’m so happy with the way it’s performed that I would not hesitate to buy an additional unit in the future. Read more

★★★☆☆

Not as small

Blonde AggieJuly 26, 2024

I was expecting a thin little thing. It’s not. About 1/2” thick. Heavy let’s see how it charges. Read more

★★★★★

Was a gift

just askingOctober 27, 2024

My grandson loves it keeps his I phone 15going Read more

★☆☆☆☆

Heart broken

CourtneyJuly 28, 2025

Loved this at first. Super small but after less than a year of using it maybe once a month mine has stopped charging more than a minute at a time. Read more

★★☆☆☆

Runs Hot

Prime memberMay 11, 2025

This charger runs hot when used. Would not recommend. Read more

★★★★★

Excellent Product, Very Easy to Take With You

GadgetGuyMay 17, 2024

This battery was exactly what I was looking for: a small (5 mAh) charger with both magnetic wireless and fast power delivery (PD) wired outputs via USB C. It's small enough to fit into your pocket or in a small bag of gear, and isn't heavy like other, larger batteries. You can feel the good build quality when you're holding it in your hand, with its aluminum casing on all sides (except for the MagSafe surface on the bottom). My unit is an attractively understated blue-green color. I was able to charge up my iPhone 12 Pro Max wirelessly, with the phone's thin case only partially reducing the battery's magnetic attraction. I'm sure it would stay even more securely attached without a phone case, but as long as I was careful when holding it, it worked fine. As with any wireless battery charger, the charging rate is not as fast as a direct USB cable due to the inherent inefficiency of wireless charging, but this little battery still did the job quite nicely, even with the (thin) phone case. The instruction manual was a bit confusing with respect to the meaning and color of the four small LED indicators on one edge (there is no "flashing green light" mode that I could see, for example), but I found that the blue charge status lights made perfect sense in actual use. That is, all three lights on the battery charge level will light up without blinking when the battery is full, and the lights begin to wink out as it gradually empties its charge into an attached device. When charging the battery back up, the lights sequentially blink as they make their way up to a full charge, with all three again solidly lit once charging is finished. This is the way other batteries I've used work. There is also an amber "wireless charging" LED next to the three battery level LEDs that comes on randomly during use, at least on my unit - sometimes it stays off and sometimes it goes on, and I can't see any logical purpose for it. Fortunately the battery works just fine in either wireless or USB modes regardless of what the amber light's status is. I wish it could instead be used as another battery charge level, because 25%, 50%, 75% and 100% charge levels would be more useful than the less precise 33%, 66% and 100% levels that are in place now. Besides, when the battery is in use, the connected phone or device will clearly show that it's being charged, thus making a "wireless charging" indicator redundant. There is a power-on button that needs to be pressed to begin wireless charging. After pressing it, there is a lag of a few seconds before your phone will show that it's charging, which may be due to a negotiation between the charger and the phone - just a guess. The battery can wirelessly charge a phone while it's plugged into a wall charger (not included) for recharging, which is a useful feature. All in all, I'm really very happy with this unit despite my quibbles about the LED descriptions in the manual. It's small, lightweight, well built and does a great job charging in either wireless or wired mode. I would happily recommend it. Read more

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