Customer Ratings & Reviews

light weight. charges quickly and powers a go pro for 8 hours.

It is Great for traveling! Really useful and can even charge your phone full!

Easy to use and fast charging. Charges my phone pretty quickly and small enough to throw in any bag.

Slim easy to carry in pocket light weight fast charging

This charger is pretty good. It’s sleek, like the size of a cell phone and it charges your phone pretty quickly. It doesn’t take too long to charge itself either. I like that it’s not too heavy. I have another portable charger that is clunky and heavy. This one fits right into your pocket, just like your phone. Fits nicely in my purse as well. It won’t charge with the USB-C cable that the new iPhones use though, you have to use the old cord.

Nice, no nonsense unit with all the features I need without paying for extra features that just add bulk and I really don't need. Great for power outages and traveling where other power sources are not available or convenient. Works great for rustic camping when mass is an issue and you need to keep your devices charged for a few days. For shorter trips I use the 10kmAh version and it keeps my phone going for days.

Small and compact for travel. Loads quite quickly, easy to use.

Not too heavy. Does an outstanding job providing backup power to iPhone.

Compact, sturdy & convenient. This charger will charge my iPhone two full times before needing to be plugged in. It is easy to use. A helpful light on the side indicates battery strength from 1 to 4 lights. My charger is black in color and doesn't get hot like previous non-Energizer charger purchases I've made. It recently came in very handy during Texas arctic blast power outages. Highly recommend!

This portable charger has been a great purchase for me. I have another one that takes hours to charge, but this one takes about 2-3 hours to reach max charge. It is useful for 2 full charges of my phone. It's also versatile as ive used it to charge my rechargeable xbox controller and other sorts of similar gadgets.

Super convenient to carry , light weight and fast charging.

The Energizer MAX 10,000mAh Ultra-Slim High-Speed Universal Portable Charger in Black offers a convenient way to keep your devices powered on the go. The high capacity provides multiple charges for your devices, and the slim design makes it easy to carry in a bag or pocket. However, the charging speed may be slower compared to other power banks with higher output. Additionally, the power bank itself takes a while to recharge fully, which can be inconvenient. The build quality could be more durable, I had issues with the charger breaking after extended use.

I love it,,fast charger,,really tiny and easy to use

This is a slim, compact unit. It charges quickly and appears to hold the charge well (I've only had it a few weeks). It provided excellent service during a recent trip that included long airport wait times and limited access to AC power sources. It was considerably less expensive that alternatives that had the same specifications.

You can't beat it for the price. And the size makes it even more worth it. Compatible with all charging types without any extra purchases. Definitely worth the buy.

I have an older iPhone and needed a boost to my older iPhone throughout each day as I was relying on the phone for pics and directions. This did the job well and was slim enough to be stored in my purse or even held together with my phone while walking around various cities abroad.

Easy to use this charger. I charged it to the full and use it once a week, for 3 weeks it still shows 4 charge lights

I was travelling and needed a portable charger for my phone. I purchased this Energizer-Max 5,000mAh charger and it worked great for my needs. I was surprised as to how quickly it charged my phone and had plenty of charge left. I would highly recommend this for charging a smart phone.

small and thin size, great for on the bus or airplane. very light weight. Not heavy like my bigger power banks.

Its good for price, extremely slim and portable, but the charging output is one-way only. Even though it has a type-C input, it can't be used to charge your devices. It also has a good charge speed.