LUCKYDUO Ultra Slim 10000mAh for Magnetic Portable Charger,0.47IN Thin Wireless Magnetic Power Bank, Compact Battery Pack with PD 20W Two Way USB-C Charging,Compatible with iPhone 16/15/14/13 Series

I travel 8-9 months of the year doing a lot of day trips and some 2-3 day hike through treks where I sometimes don’t have access to electricity other than what I’m carrying. So I’m always looking for portable batteries with the best combination of power capacity, minimal weight and convenience for on the go charging for my iPhone 14 Pro. The last requirement (convenience) is where MagSafe and this battery’s slim profile come into play.This battery is the best I’ve found because it has as much or more capacity than any other 10000 mah I’ve tried while weighing significantly less and being much thinner.I have several 5000 and 10000 mah batteries including Ankers in both sizes. The Anker 5000 weighs 5 ounces or ~140 grams which is one ounce lighter than this 10000 mah Luckyduo, but for wireless charging the fully charged Anker only provides a 65% charge to my phone which frequently isn’t enough for my needs. The 10000 Anker provides 175% wireless charge which is a little less than the 185% I get from the Luckyduo, but the Anker weighs two ounces more and is much thicker & bulkier. So the Luckyduo beats the Anker in every way that’s most important to me. The magnetic adhesion is good and about the same for both of these 10000 mah batteries, but because it’s lighter and thinner the Luckyduo will be less prone to being dislodged when carried in a pocket, backpack or wherever you might stow your phone on the go.It’s almost exactly the same thickness as my iPhone 14 Pro in a typical silicone case.Charging speed isn’t as important to me as the features above, but the charging speed for this battery is a little faster than the Ankers and the 5 or 6 other wireless chargers I’ve tried. Like all the batteries I’ve tried the charging speed slows after the phone is more than 50% charged. From zero to 50% this battery charges my phone at exactly 1% per minute. From 50% - 80% it gradually slows to an average of about 0.7% per minute over that range. The final 20% takes almost an hour or 0.35% per minute. These speeds are a little faster than the Ankers and other wireless batteries I’ve used.Getting 1.85 charges for the 14 Pro equates to about 5550 mah which might sound weak for a 10000 mah battery. But wireless charging is inefficient and this is still better than every other battery I’ve used. I haven’t tried wired charging with this battery yet but I’m sure it will provide more than two full charges for the 14 Pro. Possibly as much as 2.5 charges (7500 mah) based on my experience with other batteries. And in my experience 75% efficiency is as good as it gets with any portable battery. Also, when fully charging my phone the final 20-30% seems to drain the battery faster than the first 70-80%. So if I were to stop charging at 80% this battery might provide more than 200% or two full charges before fully depleting. But I haven’t tested this theory yet.This battery gets only slightly warm when wirelessly charging my phone. Hardly noticeable and it stays MUCH cooler than the Ankers. In fact both Ankers almost always cause my phone to overheat and stop charging to prevent damage when the phone gets to about 80% charged. Which requires me to remove the battery and let both devices cool down before I can get the phone fully charged. I’ve used this Luckyduo four times so far and haven’t had this problem. It charged to 100% every time with no overheating.I’m not sure exactly how long it takes to fully recharge the totally depleted battery, but I know it takes at least 3 hours using a 66 watt output USB-C to USB-C wall charger & cable. Probably closer to 3.5 hours. As usual for all such batteries the recharge speed slows as the charge increases.If two ounces or ~60 grams of weight and the functional convenience of a slim profile are important to you, then you might agree with me that this relatively expensive battery is worth the extra cost.I’m starting a 100 day trip in two weeks which will take me hiking in the Pyrenees, East Africa and SE Asia. If this battery continues to perform as it has in the few days I’ve had it I’ll buy another when I return even if the price hasn’t dropped.

Works on samsung products. A little hard to figure right position at first due to camera size. But does fit and stay on. Strong magnet, charges at a decent speed not a lightning charger. There is so.e weight to it but not to bad. It doesn't get hot.

You’d assume from the product description the included cable was USB-C on both ends. The prior one I had from another manufacturer was indeed USB-C on both ends. My wall wart is a 20W PD USB-C one. So the included charging cable was not what I expected in the box, again, given the product description. Fortunately I still had the USB-C to USB-C cable from my old battery pack.This 10,000 mAh battery pack is longer but thinner than my previous 5,000 mAh battery pack. It seems to fit my iPhone 13 just fine but the length is right to the edge of the phone.The magnet seems to hold pretty well but I haven’t had it long enough to be certain. It is a bit looser towards the bottom edge of the phone but this doesn’t seem unreasonable since this battery pack is longer than my previous one.Can’t really comment definitively (yet) on how it recharges my phone as I’ve only had one day and only recharged my phone with it once. The pack had a charge, albeit not a full one, when delivered. It seemed to charge my phone pretty quickly but did seem to slow down a bit when the phone hit an 80% charge. The charge in the pack when delivered was able to charge my phone to 100% but did fully deplete the pack doing it.Compared to my old battery pack, not from LuckyDuo, this one got no where near as warm (hot). And my old non-LuckyDuo one was just recalled due to overheating.For me, this pack got warm to the touch but that was it. I’ll report back how the heat is after charging the phone from <20% charge.Took off one star for the product description misleading me to believe that this unit shipped with a double ended USB-C cable.At this early point in my ownership I’d recommend this battery pack.7/7/2024 update:Was able to run my iPhone 13 Pro down to 18% yesterday and recharge with this battery pack. Took 2 hours and 20 minutes to go from 18% to 85% charge, at which point I had to take the battery pack off the phone. Do note, I was not using the phone at this time when it was charging. Still showed 3 of the 4 lights indicating the amount of charge left in the battery pack.At the 85% mark there was a short thermal shutdown with the phone saying it stopped as it was too hot. Only lasted a few minutes then started charging again.

Fabuloso

Will not stay charging from battery in wireless phone charging mode on pixel 6 pro with: Spigen slim case, or bare phone, or mag safe case.It tries to charge exactly every 15 seconds, but then stops. My phone charges fine with the two pixel wireless stands, an anchor, and generic charge pad.When plugged in it will charge my phone slowly.The magnet sticks very well with the mag safe case; it doesn't stick without the mag safe case. The form factor is great.So mine is defective or incompatible.

I was pleasantly surprised to see the power level on my phone battery app

It is great. Attached to my cell phone it still fits in my jean pocket. It isn’t to heavy. USB C which if you have a new iPhone it’s nice to just carry one cord to charge. I used it while traveling and would say it is two solid charges from 5-10% to full. Maybe 1.75.

Takes a longtime to fully charge after a few weeks of usage.