Customer Ratings & Reviews

This battery is enough power to charge the phone and it is easy to carry. Just unwrap the built in cable and plug in the phone. It will quickly charge the phone. Since this battery is flat and light you can easily slip the battery and the phone in your pocket to charge..

This is so easy to use - great to carry around and have on hand in times of need. Charges quickly!

The Hold Force 4000 mAh Portable Charger from Mophie provides additional battery life conveniently and in a pinch. You can get almost 2 full charges after charging the power station for a couple hours which is perfect for traveling or any situation where a wall charger isn't an option. Pack holds well on the Mophie case overall, just avoid any unnecessary movements that might make it detach from the back.

This battery lives up to the Mophie standard. It is small, compact, and holds enough charge to keep my iPhone 7 Plus running all day long. Sure, it's designed to be used with the Mophie Hold Force, but I didn't like the weak hold the case had on the battery. I would recommend this as a carry-along battery, but I do not recommend it be used with the Hold Force.

compact, charges quickly and retains battery life!

Have only had to use this twice, but it's comforting to know that, when I neglect to charge my phone, I have an instant, and portable, source of power. Note: Makes your phone heavier, of course, and it, and my iPhone, got very hot after a few hours, but neither concerned me.

This was my second portable charger purchased. The first was a generic brand and did not function like I had hoped. The Mophie worked great! Its ideal for short trips and can help charge up a phone about 4 times before running out. Very convenient since it has the cord built right in!

Very small so it fits in a man's pocket without bulk, lightning AND micro USB cable built in so no need to carry extra stuff, charges very fast (similar to iPad charger when used with IPhone), got it at a great price when on sale so totally worth it

It works well with quick charge. Slim design makes it easy to use.

Bought this for my son to use on his Iphone 6S. He is a battery hog and always seemed to run out of battery on the go. This product has helped with that problem. He can charge his phone on the go. It does what it is designed to do.

The magnets hold this battery pack pretty well to the case. I'm able to get nearly two full charges with it.

This battery is great, especially if you have the case for it because it seamless hold onto the phone while in use. At this slim size, you can take it anywhere.

I get just about a one full charge from less than 10% on my iPhone 7 Plus. Charges the phone much faster than a wall charger (about 2x or better)

it charges my phone and other devices its easy to carry light weight and connect easy to my devices

Lightweight, sticks right onto my phone case and best of all gives my phone a quick 1 full charge!

I take it everywhere I go, and it lasts a long time, it charges my cell at least 4 times

Reall does work for up to 3 charges on my iphone. Very portable and lightweight

Came in handy on my walking trips both at the beach and up in the mountains!

Love it. It charges quickly and I get about 2 full charges out of each use.

Good idea to have; slim and inexpensive. You will be glad you bought it.