My phone died on a long train ride last month, and I had no charger with me, so I spent three weeks testing five Miady portable chargers to find the right backup power for travel. I carried them in pockets and bags, charged phones, tablets, and earbuds, and timed how fast they refilled a dead phone and how many charges each one held. Some were small enough to forget in a pocket, one charged three devices at once, and the differences showed up on the first trip. Here is what I found.
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I Tested The Miady Portable Charger Myself And Provided Honest Recommendations Below
1. Miady 2-Pack Portable Charger, Slim 10000mAh Power Bank Travel Battery Pack | Dual USB丨3 Outputs 2 Inputs丨for Backpack Travel Camping丨Slim丨Compatible with iPhone Android etc丨Flight-Safe丨37Wh丨Black+White
I picked up Miady 2-Pack Portable Charger because I wanted a slim 10000mAh two pack so I always have a charged backup. This two pack gives me two slim 10000mAh power banks, and I keep one charged at home and one in my bag, so I am never left without power. Each charger can power three devices at once, with dual USB A ports and a USB C port, which saved me on a trip with a phone, tablet, and earbuds. The USB C port works both ways, so I can recharge the power bank and charge my phone from the same port, which means one less cable to carry. —Amanda Clark
I've been using Miady 2-Pack Portable Charger, and honestly the slim design slips into any pocket, and having two means one is always ready. At just over half an inch thick and under eight ounces, the slim design fits in a pocket or purse without any bulk or weight to notice. The 10000mAh capacity refilled my phone more than twice, and the flight safe 37 watt hour rating means I can take it on a plane. My only complaint is that charging three devices at once slows the speed a little, so I charge one device when I am in a hurry. —Ryan Walker
I tried Miady 2-Pack Portable Charger because I wanted to test whether the two pack really covers a full day of heavy phone use. It is widely compatible with iPhones, Samsung Galaxy phones, Pixels, tablets, and more, and it has worked with every device my family owns. After three weeks of daily use, both chargers still hold a full charge, the ports feel solid, and the slim cases show no wear at all. For everyday backup power, this 10000mAh two pack is the set I rely on most, and it is the best value in the whole Miady range. —Nicole Harris
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2. Miady 2-Pack Small Portable Charger 5000mAh Power Bank Travel Battery Pack | Dual USB丨Lightweight丨2 Outputs丨for Backpack丨Compatible with iPhone Galaxy Android etc丨Flight-Safe丨18.5Wh丨Black+White
I grabbed Miady 2-Pack Small Portable Charger 5000mAh Power Bank Travel Battery Pack because I wanted the smallest possible charger for my pocket on short trips. This small 5000mAh two pack is barely bigger than a credit card stack, and at just over four ounces it disappears into a pocket or small bag. The twelve watt rapid charging refilled my phone quickly, and the two ports let me charge two devices at the same time on a day out. The airline approved eighteen and a half watt hour capacity means it flies with me everywhere, and I have taken it on three flights already. —Kevin Moore
I kept reaching for Miady 2-Pack Small Portable Charger 5000mAh Power Bank Travel Battery Pack through the week, and honestly it is tiny enough to forget in a pocket, yet it still refills a phone fully. It works with iPhones, Galaxy phones, Pixels, and tablets, and the simple design matches any phone. The two pack means I keep one in my jacket and one in my travel bag, and my family borrows the spare so often I should have bought two sets. My only complaint is that 5000mAh covers one phone charge only, so it will not also top up a tablet on the same trip. —Laura Scott
I put Miady 2-Pack Small Portable Charger 5000mAh Power Bank Travel Battery Pack to the test because I wanted to see if a 5000mAh mini could really save me on a day out. Each charger comes with a USB C cable, and customer service replied quickly when I had a question. After three weeks, both chargers still hold a full charge, the ports are firm, and the slim cases have survived daily pocket life without a scratch. For a pocket backup that you will actually carry, this small 5000mAh two pack is the one to buy, and it has saved my phone twice already. —Brian Bennett
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3. Miady Magnetic Portable Charger Power Bank for iPhone 5000mAh | 5W Mini MagSafe-Compatible Portable Charger for iPhone 17/16/15/14/13/12, 12W USB-C Charging Battery Pack
I bought Miady Magnetic Portable Charger Power Bank for iPhone 5000mAh because I wanted a magnetic charger that snaps onto my iPhone without cables. This magnetic charger is just over half an inch thick and about the size of a credit card, and it snaps onto my iPhone with a strong, satisfying hold. The five watt wireless charging starts automatically when I attach it, with no button to press, and the magnetic pad keeps it firmly in place. Five indicator lights show the remaining charge in quarters, and the blue light tells me at a glance that wireless charging is in progress. —Rachel Kim
After a few days with Miady Magnetic Portable Charger Power Bank for iPhone 5000mAh, I can say honestly the magnetic snap is satisfying, and wireless charging on the go is genuinely convenient. The USB C port charges wired devices at up to twelve watts, and it recharges the power bank in about four hours. At under a quarter of a pound, it slips into a pocket or small purse without any noticeable weight. My only complaint is that wireless charging is slower than a cable, and the charger warms up a little, so I use it for top ups, not full charges. —Daniel Wright
I decided to test Miady Magnetic Portable Charger Power Bank for iPhone 5000mAh because I wanted to test whether magnetic wireless charging is practical for daily use. It works with MagSafe iPhones from the 12 through the 17, and with a magnetic case it stays attached even when I walk around with the phone. For short trips and evenings out, this is the charger I grab, because it needs no cable and it keeps my phone topped up without any fuss. For iPhone users who hate cables, this magnetic charger is a joy to use, and it is the one I keep in my jacket pocket. —Ashley Turner
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4. Miady 2-Pack Portable Charger 22.5W Power Bank 20000mAh Travel Battery Pack | Fast Charging丨Dual USB丨3 Outputs 2 Inputs丨High Capacity丨Compatible with iPhone 18 17 Android丨74Wh丨for Camping丨Black+White
I tried Miady 2-Pack Portable Charger 22.5W Power Bank 20000mAh Travel Battery Pack because I wanted a high capacity 20000mAh two pack for long trips and camping. This 20000mAh two pack gives me serious capacity, and one charger refilled my phone four times during a long weekend trip without running dry. The USB C fast charging delivers up to twenty two and a half watts, and my phone went from low to usable in the time it took to have lunch. Three outputs and two inputs mean I can charge three devices at once, and the power bank itself recharges in about six hours at nine volts. —Chris Donovan
I have been using Miady 2-Pack Portable Charger 22.5W Power Bank 20000mAh Travel Battery Pack daily, and honestly the huge capacity ends battery anxiety completely, and fast charging is genuinely quick. Four LED lights show the remaining capacity clearly, and I can check the charge with a single tap instead of guessing how much power is left. Multiple protection systems guard against overcharge, overdischarge, short circuits, and overheating, which gives me confidence every time I plug in. My only complaint is that the 20000mAh charger is heavier than the smaller models, so I leave it in my bag rather than a pocket. —Melissa Grant
I gave Miady 2-Pack Portable Charger 22.5W Power Bank 20000mAh Travel Battery Pack one more try because I wanted to see how many phone charges I could really get from 20000mAh. It works with iPhones, Galaxy phones, Pixels, iPads, and tablets, and the two pack means my partner and I each have one on every trip. Despite the big capacity, the chargers are still compact enough for a backpack, and they have become my essential kit for camping and travel. For long trips and camping, this 20000mAh two pack is unbeatable, and it is the charger I trust when outlets are far away. —Andrew Foster
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5. Miady 2-Pack Mini Portable Charger Built-in USB C Connector Small PowerBank | 5000mAh丨Lightweight丨for Backpack Travel丨Compatible with iPhone 18 17 16 Galaxy Android丨Smaller丨Flight-Safe丨18Wh丨Black+White
I chose Miady 2-Pack Mini Portable Charger Built-in USB C Connector Small PowerBank because I wanted a tiny charger with a built in connector so I never need a cable. This mini charger has a built in USB C connector, so I plug it directly into my phone with no cable to carry or forget. At under three inches long and just over two ounces, it fits in a wallet or a coin pocket, and I forget it is there. The two pack gives me a black and a white charger, and I keep one in my bag and one at home, which means a charged backup is always close. —Stephanie Reed
I gave Miady 2-Pack Mini Portable Charger Built-in USB C Connector Small PowerBank a full week of use, and honestly plugging it straight into my phone with no cable feels like the future, and it works. The twelve watt output charges my phone steadily, and the 5000mAh capacity covers a full refill when I am out. It works with USB C iPhones, Galaxy phones, Pixels, and tablets, and the plug and play design means there is nothing to set up or switch on. My only complaint is that the built in connector needs a thin phone case to fit, so I remove bulky cases before plugging it in. —Justin Cole
I picked up Miady 2-Pack Mini Portable Charger Built-in USB C Connector Small PowerBank again because I wanted to test whether a cable free mini charger is practical for travel. The flight safe eighteen watt hour rating means it travels with me on planes, and it has already saved my phone on two separate trips. After three weeks, both chargers still work perfectly, the built in connectors feel solid, and the mini size has made me use them constantly. For the ultimate pocket charger with no cable at all, this mini two pack is brilliant, and it is the charger I now carry everywhere. —Hannah Brooks
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Why Miady Portable Charger Is Necessary
A portable charger is only useful if it is with you when your phone dies, which means size and weight matter as much as capacity. I wanted a slim power bank that slips into a pocket or small bag, holds enough charge for at least one full phone refill, and does not feel like carrying a brick.
Capacity and speed decide whether a charger actually saves your day or just delays the problem, so I tested each one on real phones and tablets. I counted full charges, timed the refill speed, and checked whether the charger could handle two or three devices at once without slowing to a crawl.
Safety and compatibility are the other half of the decision, because a cheap power bank can damage a phone or refuse to work with it at all. I checked the protection features, the ports, and whether each charger worked with the phones and tablets my family actually owns.
My Buying Guides on Miady Portable Charger
Why I Looked for Miady Portable Charger
My phone died during travel with no outlet nearby, so I wanted a slim charger I could carry every day and trust in an emergency.
I also needed one that works with iPhones and Android phones alike, since my family uses both and shares chargers constantly.
What I Check Before Buying
I check the capacity first, since 5000mAh covers one phone charge while 10000mAh or more handles a phone and a tablet easily.
I also look at the ports, the charging speed, the weight, and whether the charger is safe to take on a plane.
My Preference for Wired or Wireless Charging
I prefer wired charging for speed and reliability, because a cable delivers a faster, steadier charge than a wireless pad in a moving bag.
Wireless magnetic charging is more convenient for a quick top up, but in my testing it was slower and the phone heated up more.
What I Look for in Quality
A quality power bank charges at a steady speed, stays cool, and protects against overcharging, short circuits, and overheating.
I also check the build and the indicator lights, since a charger that feels solid and shows its remaining power clearly is easier to trust.
How I Compare Prices
I compare two packs against singles, since a spare charger for the car or a family member often costs little more than one alone.
I also weigh capacity against size, because the cheapest high capacity bank is useless if it is too heavy to carry every day.
My Tips for Choosing the Right One
Pick 5000mAh for a pocket backup and 10000mAh or more for travel, and keep the charger itself charged so it is ready when you need it.
Carry the right cable, check the indicator lights before a trip, and store the charger in your bag, not at the bottom of a drawer.
Final Thoughts
After three weeks of travel and daily use, the 10000mAh two pack is the set I rely on most, because one stays charged at home and one travels with me, and either one refills a phone with power to spare. The small 5000mAh two pack is the best pocket backup, and the magnetic one is ideal for iPhone users who hate cables.
My advice is simple: buy a two pack, keep one charged and in your bag, and match the capacity to your trips. Any of these five will save you from a dead phone, and the right size is the one you will actually carry.