ESRfor MagSafe Power Bank, Ultra-Compact 10,000mAh MagSafe Portable Charger, Qi2 Certified 15W Ultra-Fast Battery Pack, 27W USB-C MagSlim Charger with Cable for iPhone 16/15/14/13/12, Black

I got this as a backup plan for my IPhone 13 which has a faulty Lightning port; it can still be charged via MagSafe. This charger was less than $12.50 with a recent special offer, so I figured nothing much to lose versus those costing much more, and which might only see occasional use.A few things of note; not complaints but initial observations and impressions:- The unit takes a while to charge itself, even with a 15W USB-C charger. Unit arrived with less than 50% charge (which is normal); I’ve had it charging for over an hour and still not quite full (over 75%).I imagine it would charge faster if there were a higher-wattage input.- When both plugged in for charging, and also MagSafe charging a phone, the phone being charged will show “Slow Charger”. I assume this is normal when using a 15W charging input.This _may_ make it less-than-suitable as a regular charging pad if it does not deliver 15W MagSafe charging when plugged in.- When the USB-C is NOT connected, the phone will then charge in 15W mode. Haven’t yet tested to see how long to fully charge a phone.- Seems like nice lightweight but sturdy construction. The look and feel are quite nice, although everything but the LED’s are black-on-black.- Temperature does elevate a bit when charging a phone; I didn’t find it to be hot-to-the-touch.I charged my iPhone12 from less than 50% to 89% in just over a couple hours while I took a nap. The unit was down to about 50%.I then charged my iPhone 13 from under 75% to 99% in just over an hour before the unit gave out.

I bought this since it started fast charging. It charge fats my s23 ultra so I can keep my productive day going. It's slim compared to my anker versión... I like it very much.

The media could not be loaded. It works very well for the price. It doesn't fully charged my phone, BUT it is said in the description that it doesn't so I'm not mad at it. It is very portable even if it weights a little bit much but nothing super heavy, it easy to use and the magnet grips on my phone cover with strength.

i’ve got quite a few ESR products from different cases to screen protectors and other items from them like chargers, magnetic chargers, and screen protectors and I found overall you just can’t really go wrong with ESR products. This attaches well to the back of the phone it charges magnetically and also gives you the ability to use it as a power supply so at the price that I paid for it's an excellent value.

Review by 30+ year Electrical Engineer, top licensed amateur radio operator. I purchased two of these batteries, one works normally, the other will not charge my iPhone 15 Pro. These is no way to perform a system reset on these batteries, so I am forced to discard it.There are numerous other options in this product category. Most are more expensive, but in all likelihood more reliable. I use this battery for adverse situations where compact, portable charging is critical. If this is your use case, I urge you to consider alternatives.On the photo shown, there are 4 charge level lights. There is one green light to indicate when the battery is charging my iPhone 15. In the photo it is off. With the battery that works the green light turns one when the battery is attached magnetically. For the non functioning battery it never turns on.

They work very well and for value for money they are really good and I don’t have any issues in terms of the heat levels nor battery life they are good. But the charging speed via MagSafe qi2 is a bit weird it works but I felt as if they are a bit sluggish

Fits perfectly with my magsafe case and charges quickly.

I recommend against buying this. I used it with a iPhone 16 Pro and it would take 30 minutes to charge my phone 5% or so via the Qi2 charging, likely as a result of my phone throttling the charging due to how much heat this thing produced while charging. I imagine that quite a bit of the energy between the phone and the charger was lost as heat. I returned it and bought an Anker battery pack that seems to be performing much better so far.