Mophie Juice Pack for HTC One.

Mophie's usual quality shines through with this HTC One battery case, but you've got to be prepared for a major increase in size

Let's get this out of the way: The Mophie Juice Pack takes the svelte HTC One and bulks it up. A lot. It's a big case full of battery -- 2,500 mAh, to be precise -- that takes an already lanky phone, makes it even taller and fills it out like a blogger at a buffet. You need to know this before hefting this the Juice Pack.

But those of use who have used the Juice Packs before know that this is the trade-off for having a combination case and battery, an amalgamation that was made popular by the iPhone and has become that much more important as more phone manufacturers seal the batteries inside.

And now we've got a Mophie Juice Pack for the HTC One. Our thoughts, after the break.

If you're new to this, here's the deal. The Mophie Juice Pack is a hard-shell case with a 2,500 mAh battery tucked inside. It plugs into your phone the same way a charger would plug into your phone. It's also relatively new to Android phones. The Juice Pack has long been a must-have for the iPhone, but we were fairly disappointed with the Galaxy S3 Juice Pack we tested. (All four of them we tested, actually.) Sharp edges and a couple other minor (but noticeable) manufacturing details led us to not recommend the Mophie for the GS3. Another deciding factor was that the Galaxy S3 -- like its successor, the Galaxy S4 -- still has a removable battery, and you can get a replacement cheaper than you can a Mophie Juice Pack.

For the HTC One, we're going the other direction. The issues we had with the Galaxy S3 case are nary to be seen here, and what we've got is a solid battery case that theoretically doubles the amount of time you can use your HTC One.

Mophie Juice Pack for HTC One - the case itself

It's arguable which part of a Juice Pack is more important -- the case or the battery. We'll start with the former, however. Like we said, this case is big, adding some six-tenths of an inch in height. Know how the dual speakers make the HTC One taller than a lot of phones out there? This case adds to that significantly. The Juice Pack also nearly doubles the thickness -- the HTC One was 9.3 mm at its thinnest -- but theres a gentle curving toward the edges that tempers that somewhat. 

Mophie Juice Pack for HTC One.

By the numbers, you're looking at the following:

  Height Width Thickness
HTC One naked 5.41 in. 2.68 in. 0.37 in.
Mophie Juice Pack for HTC One 6.06 in. 2.88 in. 0.67 in.

It's a pretty stark difference. But at the same time, I actually like the increased thickness. I've never really enjoyed the anorexic trend smartphones have taken the past couple years, with thin-at-all-costs dominating design. The increased thickness with the Mophie Juice Pack actually makes things feel more proportional. I may be crazy, though. I might just like junk in the trunk.

Mophie's soft-touch plastic remains excellent, though it's prone to showing off the oil from your hands. Seating the phone in the case is a no-brainer. You squeeze the sides of the top section of the case (that's the short part) and slight it straight up to remove it. The HTC One then slides down into the main body, with the microUSB plug hitting the port on the phone, almost like the whole thing is on rails. Mophie did a really nice job with getting that fight right. Then you replace the top section, and you're all set. 

Mophie Juice Pack for HTC One.

On the back of the case you'll find four LEDs with a button to briefly turn them on. That shows how much juice the Juice Pack has left with which to juice. There's a small toggle switch next to that. Flip it to green, and the phone charges off the Juice Pack battery. Leave it red, and the phone's on its own power. 

Mophie Juice Pack for HTC One.
The IR blaster hidden in the HTC One power buttons still works even with the Mophie Juice Pack attached

The Juice Pack has cutouts for all the microphones and ports and cameras and what not on the HTC One. The volume rocker works with buttons on the Juice Pack itself, and they're OK. The power button on the Juice Pack actually sticks out a little more than on the HTC One itself -- that's a good thing, actually -- but it's a little soft. Hardly a deal-breaker, especially when you take into account that the IR blaster that's built into the HTC One's power button still works even with the Juice Pack attached.

Also, NFC still works, too. Nice.

Mophie Juice Pack for HTC One.

The bottom of the case has a microUSB port. That's where you plug in the Juice Pack to charge. But you don't have to remove the HTC One first. In fact, if you just plug in everything at once, you'll simultaneously charge your phone and the Juice Pack. The metal contacts down there are for a desktop dock that we've been hearing about for months but still haven't seen.

All in all, the case is very nicely done. no sharp edges or ill-fitting parts that we saw on other models. It's big, but this is a battery case. Not a slim-fit case.

Charging the HTC One with the Mophie Juice Pack

Mophie Juice Pack for HTC One.

The other side of this rather large coin is charging your phone. It is, after all, why you bought the Mophie Juice Pack. It's a little important to set expectations here. The HTC One has a 2,300 mAh battery. The Juice Pack brings another 2,500 to the table. Theoretically, that's double the battery life. You'll probably find you don't quite get that in real life, however, because you'll still be using your phone while it's charging. You'll learn to get the feel for it soon enough. There's really no one answer to "How long does it take to charge my phone." It depends on what you're doing with it in the meantime. (If you're looking to only charge your phone, we'd recommend an external battery with greater capacity anyway.)

Mophie rates the Juice Pack's output at 1.0A. So, again, this isn't some miracle rapid charger cure-all. It's meant to be a steady stream of power when your phone runs low. The Juice Pack is rated at 500 charge cycles -- that's 500 full charge-discharge cycles for the battery case itself, not your phone. Mophie recommends charging your phone as much as you need, then switching the case back to standby.

From dead to charged, though? Figure a couple hours at least. And that's assuming your Juice Pack is completely charged the minute you hit that toggle switch. There will be some wiggle room here. It also takes a few hours to charge the Juice Pack. (The LEDs on the back turn off after a few seconds, so you won't be kept up at night with you leave it charging.)

The bottom line

At the time of this writing, the Juice Pack runs $99 on Mophie's website. (It's currently available in black; a silver version should be ready by mid-May.) That's not an insignificant sum, given that another 2,500 mAh of power is about a third of what you can get from an external battery at one-third the price. But this is battery and case in one package. It's arguably more convenient to carry. Plus it protects your HTC One without sacrificing features. (You Ingress players will love it.)

You just have to be willing to accept a pretty significant size bump in the process.

Check out these other great HTC One Cases

If you're looking for a more traditional case for the HTC One, has you covered.


Reader comments

Mophie Juice Pack for the HTC One - the full review


Thanks for the review. Can't wait to get mine. I'm thinking it'd get great usage during vacations and those days at work where i'm just super swamped with projects and have no time to plug in.

One question though, if you use the Mophie and it charges your phone to 100%, does it automatically stop charging? Or should you turn off the charger when it hits 100? I assume it keeps charging since you said Mophie recommends you turn it off after full.

What is NTC. And...when charging my HTC-one in the Mophie case, do I show the red or the green on the little button on the back? Thanks in advance for your help.

The one is too huge as it is! Er awkward lol.. That weird ass back is what messes it up

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Motorola really nailed it with the Razr MAXX line of phones. They are well made, slim, and pack a massive battery removing ANY need to destroy the design with add on batteries, spare batteries, or the like.

I am really amazed that no other manf. has been able to replicate this success so far.

$99 is too much. You could get an 8400mAh Anker ext. battery charger for $35 and a Nillkin or other case for $10-15, and for half the price have a much better looking and functioning setup. For $49 I'd consider this, but at $99 that's Apple arrogance pricing and I don't play that game.

Yah, for the same price I can get two Samsung spare battery chargers and 3100mAh batteries for my Note 2. Could keep one at work and one at home or take either anywhere I go (they're easily portable) all the while keeping the sleekness of the phone itself. As to swapping out a battery, takes a couple minutes tops including the 30 seconds to boot up. Priceless. Beats sealed/embedded batteries and any external charging pack any day!!! :P

According the to Mophie's site, it's actually 500 full 100-0 cycles, then it only has 70% of its capacity left. It doesn't die after 500.

Also, its not meant to be the sole charger for the phone. Just for those days when you need some more juice. You should still plug it into the wall at night.

Any of us reading this review on this site knows that there are better, cheaper options.
This is for the iPhone defectors because they relate to the brand name, and therefore the increase in price.

I swear that some of you folks are " tighter than bark on a tree ". $30 for a case + $69 for an integrated battery. Sounds good to me.

I am happy to see that some manufacturers' will be supporting the ONE with this type fixes the changeable battery issue for me completely. But $99 is nuts. Somebody will offer a reasonable alternative.

Funny that they tested 4 Galaxy S3 juice packs. With the ability to remove the battery you don't need a juice pack.

You read *why* we tested 4, right?

  1. We ordered two off resellers on Amazon. Each had sharp edges.
  2. Mophie thought we might have counterfeit devices. Offered to send us another to test out.
  3. In the meantime, I ordered one straight from Mophie.
  4. The unit Mophie offered showed up a week and a half later. (That's a long time in this biz.)

All four we tested were exactly the same, with sharp edges on the lower lip.

Hmmm...I like it. I wish it were a little less in price, but I love that this is a single device. No need to carry around a separate external battery. The thickness doesn't bother me one bit, as current phones have gotten too slim as it is. Now if Mophie could only get some competition to bring prices down!

I would try it if it was a bit cheaper. I went ahead and ordered an Anker portable battery charger for an upcoming camping trip. I'll be keeping an eye on this for it to eventually go on sale. Great review, Phil.

I brought the case and really like it. Does anyone know what size pouch or holster would fit the One with Morphie case?

Man it looks huge, I would live the extra juice without the bulk. Are there anymore options on the market that perhaps look a little better?

Just got this in the mail. Took a week and a couple to come to Canada.

1. This thing makes the phone a LOT longer
2. It feels really good in the hand + Sturdy
3. Still fits nicely in pocket

Im going to real world test this today

Ok ppl stop being ass holes, just got my battery an I love it nice job Mophie. Feels good in the hane and not bulky as ppl think, money well spent

I bought a "powerskin" case for my last phone(Desire HD) and it had 3 major drawbacks.
1.) While the case used the same micro USB as my phone, there was no data pass through. If you wanted to connect to a computer, you had to remove the case.
2.)The headphone jack hole in the case was too small for anything except those super tiny jacks that you find on apple ear buds. So again, if I wanted to plug my phone into my car stereo, I had to take the case off.
3.)Because of 1 and 2, the silicone case stretched out within a couple months and the phone would fall out in my pocket. I also hated the silicone because it grips against fabric. Getting it in and out of my pocket was very cumbersome.

I dont know if i missed it in the review but would I run into any of these problems with this case?

Overall, the HTC One Mophie Juice pack is excellent. Unfortunately, the groove for the headphone jack does limit the type of cables that can be used. A m/m audio jack from the phone (in Mophie case) to the car AUX jack does not work with certain cables (due to the common plastic bulk above the contact points on most). No issues with data pass through--this works fine.

There is another battery case for the HTC ONE its the I-Blason PowerGlider External Battery Case for HTC One. I was wondering if you could compare the two or at least do a review of this case. I want to get a charging case for the ONE since the battery isn't removable but the I-blason case is cheaper and has a kick stand. Let us know how it is. Thanks