Beaver Electronics Co. has debuted a unique fast-charging external battery for the iPhone, which it's dubbed "Quarter," because it takes less than a quarter of the time to charge compared to a normal external battery. The secret lies in the charging method -- Quarter has a built-in MagSafe port that allows it to be connected to MacBook's MagSafe Power Adapter.

Apple does not allow third-party companies to use its MagSafe technology, so Quarter has been created without Apple's permission and with components Apple likely would not approve of, but its super fast charging capabilities are undeniably enticing.

quarterwithmagsafe
Design wise, Quarter is similar in size to an iPhone 6 Plus. It's just as wide and a bit shorter, but quite thick and heavy. It's 12.5mm thick and it weighs 180 grams. It's made from aluminum and has an an extra lip at the top with a hole that could be attached to a bag or backpack, but given its size, I'm not sure anyone would want to use it that way so that extra bit of material is extraneous and an unusual design choice.

quarterexternaldesign
There are four indicator lights on the Quarter that are lit by a built-in LED. These lights let you know how much power is left, activated by shaking or tapping the Quarter. A shake or a tap is also how the Quarter is turned on to begin charging a device it's plugged in to.

quarterleds
On one end of the Quarter, there's a MagSafe port, a USB port, and a micro-USB port. The USB port can be used to charge an iPhone or other iOS device, while the micro-USB port and the MagSafe port are both used to charge the Quarter itself. Charging with MagSafe is fast, but if the only available option is a micro-USB cable, it's also able to charge that way. As seen in the photo below, the ports on the Quarter don't quite line up, which is an unfortunate design decision.

quarterports
The Quarter claims to charge much faster with MagSafe than an external battery that's charged over micro-USB, and in my testing, that was an accurate claim. It has a 5,000mAh battery and after draining it completely, it took about 35 minutes to charge to full capacity. I plugged it in at 3:35 p.m. and it was full just before 4:10 pm using a Retina MacBook Pro MagSafe Power Adapter. You'll need to supply all of your own cables, of course.

quarteriphonesizecomparison
With a full charge, Quarter was able to charge my iPhone 6s Plus from a totally dead battery to 100 percent in two hours and 15 minutes. Charging my iPhone 6s Plus to fill used up approximately 3/4ths of the battery (with one bar left on the indicator), leaving enough to also charge my iPad from 78 percent to 87 percent. At that point, the battery pack was exhausted.

While the Quarter only has enough capacity to provide one charge for the iPhone 6s Plus, it will be able to provide more power to the iPhone 6 and the iPhone 6s, both of which have smaller batteries than Apple's larger devices. It will charge an iPad Air 2 or another iPad, but likely not to full.

According to the Quarter's advertising, it can garner enough power to charge an iPhone 5s after just 15 minutes of charging. This was also accurate. After draining the battery, I charged the Quarter for 15 minutes and then plugged it into a completely dead iPhone 5s. It was able to charge the iPhone 5s to full on that single 15 minute charge.

quarterwithmagsafeenhance
Charging the Quarter via MagSafe caused it to become uncomfortably hot, which was concerning. I wasn't able to measure the temperature, but it was hot enough that I wouldn't want to touch it or hold it in my hand when it's charging. When charging via micro-USB or when used to charge an iPhone, it stays cool to the touch.

To achieve fast charging via MagSafe, Beaver Electronics designed Quarter with a battery core voltage of 7.4V and redesigned the internal circuit. "We managed to reduce the internal resistance by optimizing the Li-Ion polymer battery," reads the site.

Beaver Electronics is also selling an optional MagSafe car charger that can be used to speedily charge the Quarter in the car. Though it has a MagSafe connector on the end, it's not suitable for charging a MacBook in the car.

quartercarcharger

Bottom Line

Quarter does exactly what it claims to do. It works with MagSafe and it charges in a fraction of the time that it takes standard external batteries to charge. Being able to charge an external battery enough to charge an iPhone 5s in 15 minutes or an iPhone 6s Plus in 30 minutes is undeniably useful.

On the downside, this is not an Apple-sanctioned product. Apple does not let third-party companies use its MagSafe technology, and there's certainly a chance that Apple could get sales of the product shut down.

quarterdesignfinal
Quarter is limited to 5,000mAh and it is rather large comparative to some of the other solutions that are on the market, but its relatively inexpensive pre-order price tag and its fast charging capabilities make it worth the cost.

Pros:

  • Charges fast
  • Enough capacity for a full iPhone 6s Plus charge
  • Optional car charger
  • Reasonably priced

Cons:

  • Not Apple approved
  • Gets hot when charging
  • Somewhat bulky

How to Buy

Quarter is available for pre-order from crowd-funding site Pozible for $39. The company plans to begin shipping orders out in the middle of November.

Top Rated Comments

Dan-- Avatar
71 months ago
I think it's biggest issue is the heat generated. That doesn't speak well to product longevity, nor safety.
Score: 6 Votes (Like | Disagree)
ignatius345 Avatar
71 months ago
Let's be clear here, it's not MagSafe, it's MagSafe 2. Which means even though I have four MacBook Pros and five MagSafe power adapters in my house right now, this wouldn't be compatible with any of them without a MagSafe to MagSafe 2 adapter. Because as of yet I've had no good reason to buy any new MacBooks when mine are holding up just fine even after being 5-7 years old.
Oh no. They lost the "I never upgrade my electronics" market segment.
Score: 4 Votes (Like | Disagree)
Aston441 Avatar
71 months ago
The MagSafe patent is BS, there's fifty years of prior art, but no little battery company can go up against Apple's hired guns.
Score: 1 Votes (Like | Disagree)
RedBear Avatar
71 months ago
Let's be clear here, it's not MagSafe, it's MagSafe 2. Which means even though I have four MacBook Pros and five MagSafe power adapters in my house right now, this wouldn't be compatible with any of them without a MagSafe to MagSafe 2 adapter. Because as of yet I've had no good reason to buy any new MacBooks when mine are holding up just fine even after being 5-7 years old. If this doesn't come with an adapter that will be an extra expense for tens of millions of potential buyers who own the older Mac portables with the original MagSafe connector. ($19.95 on Amazon, down from its original price of $29.99).

Not sure what legal rights Apple really has to stop them using the MagSafe style connectors, but it seems like it would have been much smarter to design something like this to have a USB Type-C connector since USB Type-C is supposed to handle up to 100W and is poised to become a universal standard connector. The MacBook Pro MagSafe power adapter is at best rated for 85W and regular MacBook/MacBook Air adapters are something like 65W or 45W. Plus it's proprietary.

That being said, the idea of a power bank that charges much faster and has higher internal voltage so that it can also charge the end devices faster is all very appealing. And I'm actually quite shocked at the $39 price. With its supposedly advanced Lithium-Polymer battery design, nice body construction and fast-charging capabilities I would have guessed at least $79 even for an early bird supporter price. Not sure how they can do this for just $39. If it's legit it seems like a pretty good deal for what you get.

One thing I don't like is that the linked page doesn't specify anywhere that I can see what the total mAh capacity is, although by the slickness of the rest of presentation this might just be a marketing decision, an attempt to keep things simple. All other relevant specs are listed though. If it takes about 7 hours to charge at 5V/1A, how does that translate into total mAh?

EDIT: Doh. Didn't read the MacRumors article carefully enough. I says 5,000mAh. Seems a bit small, there are a lot of 10,000mAh power banks available, though they don't have this quick-charge capability generally so I guess it depends on your use case which would be better in the end.
Score: 1 Votes (Like | Disagree)
Benjamin Frost Avatar
71 months ago
This sounds impressive.

However, won't it quickly kill batteries from charging them so fast?
Score: 1 Votes (Like | Disagree)
appledefenceforce Avatar
71 months ago
I've bought a few unauthorized accessories in China and they all work well and are a fraction of the price and better. I have a 15" lightening cable. Paid like $2 for it and went out on a date with the sales girl lol

Apple likes to make out like the Chinese Apple accessories are ridiculously inferior. Some may be, but I've never run across any issues. Apple accessory prices are ridiculous.
People die from electrocution when using cheap Chinese charger. I guess when you "see" the problem we won't see you on here to report it. Just saying.

Looks very cool. I hope they will be successful!
Score: 1 Votes (Like | Disagree)

Top Stories

Top Stories 57 Feature

Top Stories: Apple Event Next Tuesday, Mini-LED iPad Pro, iPhone Rumors

Saturday April 17, 2021 6:00 am PDT by
It feels like we've been waiting forever for new Apple products, but the wait is almost over as Apple has announced a media event for next Tuesday, so make sure to tune into MacRumors for full coverage of everything Apple announces. While that was the big news this week, we also got some new details on Apple's iPhone plans for 2022 and 2023 courtesy of analyst Ming-Chi Kuo, and we also saw...
flat imac 3d 3 teal

Reliable Leaker Hints Redesigned Colorful iMac to Debut at 'Spring Loaded' Event

Saturday April 17, 2021 4:43 am PDT by
Reliable leaker known as l0vetodream has hinted that Apple may debut its rumored redesigned and colorful iMac at its "Spring Loaded" event on Tuesday, April 20. In a tweet, the leaker posted an image of Apple's logo used for marketing the upcoming event and an image of the retro rainbow Apple logo alongside the colorful lineup of G3 iMacs. Apple leaker Jon Prosser previously reported that...
third gen Apple pencil leaked video

Video of Alleged Third-Generation Apple Pencil Leaks Ahead of Apple Event

Friday April 16, 2021 6:13 am PDT by
A video purporting to be of the third-generation Apple Pencil has today been shared online, showing a glossy finish that mirrors previous leaks. New ✏️ ready to 🚢 #AppleEvent @TommyBo50387266 pic.twitter.com/s4RCDwDi5M— 漢尼斯·拉斯納 🇨🇳 (@ileakeer) April 16, 2021 The brief video from Twitter account @ileakeer, spotted by 9to5Mac, shows an Apple Pencil with a glossy finish much like the...
important battery message iphone 11

Some iPhone 11 Users Seeing Increased Battery Health Percentages After iOS 14.5 Recalibration Process

Friday April 16, 2021 6:32 am PDT by
In the sixth beta of iOS 14.5, Apple introduced a recalibration process for the battery health reporting system on the iPhone 11, iPhone 11 Pro, and iPhone 11 Pro Max to address inaccurate battery health estimates for some users. Apple said this process might take a few weeks to be completed, and now that two weeks have passed since the sixth beta of iOS 14.5 was released, some users are...
duan rui iphone 12 13 notch

New Images Show Smaller iPhone 13 Notch Compared to iPhone 12

Saturday April 17, 2021 11:38 pm PDT by
Leaker known as "DuanRui" has shared more images that could give us our best look yet at Apple's redesigned notch for the iPhone 13. The new pictures follow similar images shared by the leaker last week, but the latest shots include a comparison with the existing iPhone 12 notch. DuanRui posted three images on Twitter that apparently originate from Weibo, although source details remain...
iphone 13 pro max cads eap

iPhone 13 Series CAD Leaks Reveal Larger Camera Dimensions

Friday April 16, 2021 1:53 am PDT by
Information and alleged CADs of the upcoming iPhone 13 series, shared in a video from EverythingApplePro, indicates that Apple plans to make this year's iPhone camera module significantly bigger, likely to make way for larger sensors and sensor-shift stabilization. According to the CADs shared in the video, the iPhone 13 mini, Pro, and Pro Max camera module will all be a "perfect square."...
maxresdefault

Hands-On With Anker's MagSafe-Compatible Battery Pack

Thursday April 15, 2021 9:39 am PDT by
Anker, a company known for its range of accessories designed for Apple products, recently came out with one of the first MagSafe-compatible battery packs, so we thought we'd check it out to see how it compares to a standard battery pack. Subscribe to the MacRumors YouTube channel for more videos. Design wise, Anker's power bank looks like a typical battery pack, but it has magnets built in...
apple event spring loaded

Apple's 'Spring Loaded' Event Officially Announced for Tuesday, April 20

Tuesday April 13, 2021 9:04 am PDT by
Following an overnight leak by Siri, Apple today officially announced that it will be holding a special "Spring Loaded" event on Tuesday, April 20 at 10:00 a.m. Pacific Time at the Steve Jobs Theater on the Apple Park campus in Cupertino, California. As with all of Apple's 2020 events, the April 2021 event will be a digital-only gathering with no members of the media invited to attend in...
iphone 12 120hz thumbnail feature

LTPO Displays Supporting 120Hz Refresh Rates Again Rumored for iPhone 13 Pro Models

Friday April 16, 2021 10:01 am PDT by
The two higher-end "iPhone 13 Pro" models that are coming in 2021 are expected to use LTPO display technology to enable 120Hz refresh rates, according to display analyst Ross Young. Young reaffirmed the detail in a tweet that said he'd heard rumors about only one model featuring LTPO, which he says is inaccurate. Heard some rumors in the industry and media that there would only be one ...
apple music

Apple Music Tops Spotify With One Cent Paid Per Stream

Friday April 16, 2021 6:44 am PDT by
In a letter slated to be shared with artists today through the Apple Music for Artists dashboard, obtained by The Wall Street Journal, Apple has reportedly revealed that it pays music rights holders one cent per song streamed on Apple Music. The report claims that Apple Music's payment structure is thus roughly double what Spotify pays music rights holders per stream, which averages to about ...