RAVPower 6700mAh Review - mybest

The RAVPower 6700mAh is one of the best-known power banks due to its compact size and large battery capacity. While many of its reviewers praise it for its ease of use, its light and compact size, and charging performance, some reviews online claim it actually has low capacity and slow charging speeds as well.


This time around, our editing department purchased a RAVPower 6700 and tested its charging speed, ease of use, and actual charging capacity. Here's everything we learned.

  • Last updated: 01-15-2020
  • 693 views
Table of Contents

What are the Stand-out Features of the RAVPower 6700mAh?

The RAVPower 6700 is a power bank that uses iSmart 2.0 technology to enable fast yet stable charge speeds. It measures 3.5 x 1.6 x 1 inches, making it small and light enough to fit in the palm of your hand despite its sizable charging capacity.


It also sports a glossy matte finish that makes it resistant to scratching, and it also includes safety features such as its multi-charge protection system that prevents over-charging and high temperatures.

How to Use the RAVPower 6700mAh

Using the RAVPower 6700 is as simple as connecting your device using the including USB cable. It can charge smartphones, tablets, and pretty much anything that can take a charge from a USB outlet. Indicators on the main body show the amount of charge capacity left in the device.


The RAVPower 6700 supports pass-through charging, allowing users to conveniently charge the power bank while simultaneously charging a device attached to it.

The RAVPower 6700 comes with a micro USB charging cable, carry pouch, and user manual. It unfortunately does not include iPhone lightning cables, so iPhone users must supply their own.

RAVPower 6700mAh Review Roundup

Many of the RAVPower 6700mAh reviews online praise it for its portability and value for money. However, it also has its share of negative reviews that may cause potential buyers to reconsider their purchase. Our editorial team shares some of the reviews below.

Charge Capacity Woes: it Can Only Charge a Phone Battery Once

Most of the negative reviews involved the device's charge capacity. A charger with 6700mAh should be enough to charge a smartphone twice over, but some reviews have expressed disappointment at the battery pack's actual capacity.

Lost all charge after charging an iPhone X once. This clearly does not have 6700mAh in capacity.
On a good day, it's only able to charge up to 3000mAh.

Charge Speed Troubles: it Takes Too Long to Charge

The second most frequent negative review we saw involve the device's charge speed.


Some reviews mentioned slow charging speeds despite the advertised maximum charge speed of 2.4A. Charging speed is a deciding factor that could make or break a power bank, so these claims definitely need to be looked into during testing.

Charge speed is really slow. It takes so much time that it's practically useless.
Product claims to support QuickCharge but I only got 0.3A out of it.

Other Issues: it Produces Too Much Heat

We also found some reviews that claim to experience issues with excessive heat generation or defective products that do not work altogether.

The USB output port breaks too easily. The first one broke within half a year, while the second one broke within 4 months.
Doesn't fully charge even when it's been plugged in for more than 10 hours. What scared me was that it was really hot to the touch.

Putting the RAVPower 6700mAh to the Test

To put both the positive and negative reviews to the test, our team of editors purchased the RAVPower 6700 and asked a team of electronics specialists to perform the following tests on it:


Test 1: Ease of use

Test 2: Charging speed

Test 3: Actual capacity

Test 4: Other issues

Test ① Ease of Use

Our first order of business was testing ease of use.


To test the good reviews praising the RAVPower 6700 for its ease of use, we started out by measuring its size and weight.

Weighs 4.5 Ounces - Light Enough to Carry with Your Phone

In our ease of use tests, the RAVPower 6700 weighed in at just 4.5 ounces (or 129 grams). It's official weight is at 4 ounces, so there may be some discrepancy between individual devices. We consider this to be very lightweight given that most power banks in the 5000mAh range tend to weigh closer to 7 ounces. 


In terms of its size, the RAVPower 6700mAh is so light and compact that an adult could easily hold both the power bank and a phone together in one hand.

Test ② Charging Speed

Our next agenda was the charge speed test. We measured the ampere current value using an iPhone 8 charged with an Apple Lightning cable. We also measured the time it took for the phone to reach a full charge.

Charging Speed Measured at 1.64A, Which is Better Than Most Power Banks!

In our tests, we found that the RAVPower 6700mAh charged at 1.64A. In fact, it was the fastest of the 24 power banks we tested for this series of reviews.


The RAVPower 6700mAh automatically adjusts its power output based on the device that is connected to it, which accounts for its fast charging speed. It's a great choice for people who need a quick yet stress-free charging experience.

3 Hours to Fully Charge Internal Batteries

In our charging speed tests, it took approximately 3 hours to charge the battery pack from zero. We count this on the fast side considering that the battery pack is advertised to have enough capacity to charge a smartphone completely twice over. 


During charging, we noticed that each of the indicator dots would blink periodically, but all 4 would remain lit to indicate that the battery pack is fully charged. It's an intuitive way to determine how much charge is left in the internal batteries.

Test ③ Actual Charging Capacity

Next, we turn our attention to the unit's actual capacity. To do this, we connected a USB fan to a fully-charged unit and let it run continuously until the battery ran out while using a current measurement device to test the battery's actual capacity. This allowed us to find out exactly how much charge the internal battery could hold.

Actual Capacity is at 3,103mAh, Which is a Little Underwhelming

Upon closer inspection, the RAVPower 6700 only had an actual capacity of 3103 mAh, which is only 46% of its advertised 6700 mAh!


Power banks usually undergo some form of conversion loss, leading to actual capacities of around 60% to 70% of their advertised capacities. That said, the RAVPower 6700mAh only had less than half of its advertised capacity.


3103mAh is enough to fully charge a smartphone once. If you're looking for a large-capacity power bank that will let you charge multiple devices several times in a day, you might need to look elsewhere.

Test ④ Other Issues

Now we put the other reviews to the test. Some of the negative reviews we've seen online mentioned extreme heat generation and broken USB ports, so we tested the RAVPower 6700mAh to see if any of those reviews hold water.

USB Port Stress Test: Still Functional after 200 Port Insertions

USB Port Stress Test: Still Functional after 200 Port Insertions

To test USB port durability, we subjected the USB port to a stress test by repeatedly inserting and removing a USB cable 200 times.


We found that the USB port survived the stress test and continued to work normally. This is based on the assumption that the port will be used once a day for half a year (180 days). The port appears to be durable enough to survive daily use, but in the event that your port is broken, RAVPower does offer customer support.

Heat Test: No Discernible Heat Generation

Our final order of business was to test excess heat generation.


We are glad to report that we did not feel any excessive heat during any of the tests we conducted, which involved charging the battery pack and using it to charge smartphones. While our test unit did feel warm to the touch, it was within safe, non-hazardous levels.


The RAVPower 6700mAh features a multi-charge protection system that protects against overcharging, over-voltage, and short circuits. It has also been awarded with PSE certification, which guarantees that the product adheres to quality standards and is safe to use.

The Final Verdict: Great Charging Speed and Portability Equals Great Value for Money

The RAVPower 6700mAh packs 1.64A of charging speed in a compact and portable package, making it a must-have for people who like to pack light.


Its charging capacity does leave a lot to be desired. An actual charging capacity of just 3,103mAh means that the battery pack can only fully charge a smartphone once. That said, smaller battery packs tend to have smaller charging capacities, so this becomes a trade-off between charge capacity and portability.


It only has one USB port so it can only charge one device at a time, but this should be enough to serve as an lightweight and portable option for when you really need that last bit of juice.

Summary

In this review, we took a look at the RAVPower 6700 and subjected it to a battery of rigid testing. Its portability, charging speed and value for money make it a great buy for people who need a no-frills power bank with a good charge rate to get their phone through the day.


Translation: Jamie Martin

Related Articles

  • Top 10 Best Hair Dryers in 2021
    Top 10 Best Hair Dryers in 2021
    A hair dryer is so much more than just a device to help you dry your hair. It’s an essential styling tool that many people just can’t live without. Hair dryers have come a long way since the old days where you needed to sit for hours at beauty salons to have a good blow-dry. Today, there are plenty of quality hair dryers you can use at home. A good hair dryer can give you volume, straighten hair, or even give a curly or wavy look.Whatever style you are going for, it's important that your hair dryer is as gentle to your scalp as it is to your sensitive strands of hair. mybest searched for the most popular hair dryers online and ranked them. Then we compiled this guide to help you choose the right one.
    Home electronics, PC, camera
    766 views
  • Top 10 Best Target Black Friday Vacuum Deals in 2020 (Dyson, Bissell, and More)
    Top 10 Best Target Black Friday Vacuum Deals in 2020 (Dyson, Bissell, and More)
    If you're in the market for a new vacuum, Black Friday is the perfect time to buy. This year, Target is offering discounts on top products from big brands, including Dyson, Bissell, Shark, and more. Get that heavy-duty deep cleaning model you've been dreaming of, or pick up a lightweight hand vacuum for small messes. And if you're looking for a versatile everyday vacuum, check out convertible options or go wild with the accessories.To help you wade through the choices, we've compiled a list of the top 10 best Black Friday vacuum deals at Target. For maximum efficiency and effectiveness, the Dyson Ball Animal 2 is our favorite. This upright vacuum has incredible suction power that will remove more dirt from your carpet than you thought was possible! Read on for the rest of our favorites, and check out our buying guide for tips on how to choose a vacuum that's right for you.
    Home electronics, PC, camera
    395 views
  • Top 10 Best Plug-in Night Lights in 2021 (GE and More)
    Top 10 Best Plug-in Night Lights in 2021 (GE and More)
    Night lights are a tried and true solution to a child's fear of darkness, but they can also be helpful in other ways. Night lights can be used to illuminate hallways and bathrooms to navigate in the dark, or an infant's room for nighttime checks or nursing. Many adults have problems with sleep regulation or nightmares that could be alleviated by night lights. The right plug-in night light will meet these needs without disrupting your circadian rhythms or having a noticeable impact on your electric bill.  To make the best selection to meet your needs, take a look at some of our favorite options that this year has to offer. Our number one pick is the Plug-in Dimmable LED Night Light. The adjustable brightness feature of this night light means the user can customize it perfectly to fulfill different purposes or accommodate personal preferences. For more great options, check out our top 10 list. And don't skip our buying guide so you know what to look for when trying to find the best one for your needs.
    Home electronics, PC, camera
    393 views
  • Top 10 Best Smart Locks for Home in 2021 (Schlage, August Home, and More)
    Top 10 Best Smart Locks for Home in 2021 (Schlage, August Home, and More)
    Looking for a little peace of mind and security? Or perhaps you've gotten locked out one too many times? Smart locks offer more safety and convenience! Smart locks use technology in addition to traditional locking mechanisms for better functionality. Some even let you lock and unlock your door from anywhere, saving you the risk of hiding a spare key and the hassle of coming home to let in guests. To help you buy with confidence, we have compiled a list of the top 10 best smart locks for homes. We loved the August Smart Lock Pro the most. It gives seamless integration with most smart home hubs and voice assistant technologies. Plus, the device is so simple that no one outside would ever know that it's a smart lock. Make sure to read through our buying guide for more information about the features to consider if it's time for your door to get a smart lock upgrade!
    Home electronics, PC, camera
    586 views
  • Top 10 Best Platform Games for PC in 2021 (Hollow Knight, Dead Cells, and More)
    Top 10 Best Platform Games for PC in 2021 (Hollow Knight, Dead Cells, and More)
    Are dodging obstacles and leaping from one platform to another your thing? These are the mechanics behind platforming games. They are fun for all gamers because of their simple movements: running, jumping, or climbing. Game developers have been pushing the envelope by enhancing platform games with complex storylines, open worlds to explore, and upgrades. With all the games available online, it can be difficult to sort through all the options. So, we found 10 great games to get you started on your search! Out top pick, Dead Cells, utilizes rogue-like gameplay, a type of addictive gameplay that makes players want to keep trying over and over again to succeed. Make sure to check out the rest of our favorites on our top 10 list and read through our buying guide for helpful purchasing tips.
    Home electronics, PC, camera
    460 views
  • Top 7 Best USB Flash Drives for iPhone in 2021 (SanDisk and More)
    Top 7 Best USB Flash Drives for iPhone in 2021 (SanDisk and More)
    When your iPhone's memory is full, flash drives are a reliable way to store and transfer data from your iPhone without the need for monthly fees or an internet connection. Flash drives with lightning connectors allow you to directly connect and transfer data from your phone to the flash drive to clear up precious storage space or transfer data from your iPhone to another device.To find the best flash drives for your iPhone out there, we researched what's out there and picked seven of our favorites. We especially liked the Sunany flash drive for its versatility and its ease of use according to rave reviews. We have six other flash drives that made it onto our list, so read on to find the best one for you! And if you want some more advice on how to find a good flash drive for your iPhone, check out our buying guide at the end.
    Home electronics, PC, camera
    518 views
  • Top 10 Best Stylus for Tablets in 2021 (Apple, Microsoft, and More)
    Top 10 Best Stylus for Tablets in 2021 (Apple, Microsoft, and More)
    Have your fingertips ever felt numb, the skin overstretched, after a long session navigating your tablet? Perhaps an extension of your finger will make operating your device more efficient and comfortable. Styluses were created for that reason, plus they provide more precision if you need to draw on the screen. We've picked out some of the best styluses for tablets, with the Apple Pencil taking first place for a seamlessly smooth experience. There are other options for different tablet operating systems, too. We've also included a buying guide to help you choose the right stylus for your tablet use. 
    Home electronics, PC, camera
    187 views
  • Top 10 Best Tower Fans in 2021 (Dyson, Honeywell, and More)
    Top 10 Best Tower Fans in 2021 (Dyson, Honeywell, and More)
    Are you looking to keep your home cool during the hot summer months? If so, a tower fan may be for you! They can be quieter and more portable than other types of fans and are an ideal solution if you're short on space. With so many tower fans on the market, it can be difficult to know which one to choose.That's why we’ve done the research for you and picked the Tower Fan With Tilt Setting by Aikoper as our favorite. It's easy to assemble, quiet, and the tilt function increases its effectiveness. We’ve also put together a top 10 list for you to consider and created a handy buying guide to help you make your choice!
    Home electronics, PC, camera
    166 views
  • Top 10 Best One-Handed Keyboards for Gaming in 2021 (Razer, Redragon, and More)
    Top 10 Best One-Handed Keyboards for Gaming in 2021 (Razer, Redragon, and More)
    Although many people use keyboards for typing, others like to use them to play video games. This makes one-handed keyboards useful since they will take up less desk space while giving you the buttons you need to play PC games. We created a list of the 10 one-handed keyboards for gaming, including wired and wireless options, that offered the most benefits.We really liked the RedDragon's One-Handed Gaming Keyboard since it had a comfortable design, an excellent backlight, and macro keys. If you want to find the ideal one-handed keyboard for your games, you should check the top 10 list and review the buying guide!
    Home electronics, PC, camera
    135 views
  • Top 10 Best Wireless Noise-Canceling Earbuds in 2021 (Apple, Sony, and More)
    Top 10 Best Wireless Noise-Canceling Earbuds in 2021 (Apple, Sony, and More)
    Finding the right pair of earbuds can be a difficult task. It always seems like something must be sacrificed, whether it be comfort, functionality, or quality. With wireless noise-canceling earbuds, a lot of these problems are solved. Background noise is muted, and you don't have to worry about any wired tangling or being attached to your phone. To make finding the perfect earbuds for you easier, we've compiled a list of the top 10 wireless noise-canceling earbuds. These can be used for listening to music, making calls, or watching videos. When ranking these, we considered comfort, sound quality, noise cancellation, and other commonly desired functions. Our top choice, Soundcore Earbuds, excels in every category. Read on for more information about it, as well as our other top 10 picks and our helpful buying guide!
    Home electronics, PC, camera
    104 views
  • Popular Articles

  • Top 10 Best Wearable Speakers in 2021 (Bose, JBL, and More)
    Top 10 Best Wearable Speakers in 2021 (Bose, JBL, and More)
    Looking for a way to listen to your favorite music without compromising situational awareness? Wearable speakers are the way to go. These nifty devices allow you to listen to music and make calls without having anything blocking your hearing. Take Bose's Soundwear Companion, for example. It's ergonomically shaped to sit on your shoulders and give you immersive sound with the upward-facing speakers. We've compiled nine more wearable speakers which you can hang, clip, even use as a cap, and added a buying guide to help you get started in choosing the best wearable speakers.
    Home electronics, PC, camera
    8,964 views
  • 10 Best Japanese Dehumidifiers in 2021 - Tried and True! (Mitsubishi, Sharp, and More)
    10 Best Japanese Dehumidifiers in 2021 - Tried and True! (Mitsubishi, Sharp, and More)
    When humidity levels rise, you might find yourself sweating profusely at home. Extra moisture in the air can make your home feel muggy and you may feel sticky and gross. This is where a dehumidifier can come in handy! Japan is no stranger to high levels of humidity, so, naturally, dehumidifiers are made to address these issues. To figure out which were the best, though, our editors searched Japanese e-commerce sites (such as Kakaku.com, Amazon, and Rakuten) and then chose some of the most popular products and tested them.We focused on four things: how well it removed moisture, whether it could be used to dry clothes, ease of use, and noise level. We then compiled everything we learned into a buying guide about and list of the best Japanese dehumidifiers available online. We loved the Clothes-Drying Compressor Type Dehumidifier by Sharp for it's efficiency and ability to perform multiple tasks, including deodorizing and drying clothing. Check out more below!
    Home electronics, PC, camera
    5,690 views
  • Top 7 Best Japanese-English Electronic Dictionaries in 2021 (Sharp, Casio, and More)
    Top 7 Best Japanese-English Electronic Dictionaries in 2021 (Sharp, Casio, and More)
    If you’ve been studying Japanese for long enough, you’ve probably considered investing in a Japanese-English electronic dictionary. Ubiquitous in Japan and full of more (and better) resources than you could ever have on your phone, it makes sense to have one if you’re serious about your study. But with so many models each with different functionalities, it can be hard to pick one out. We did the research and compiled a list of the top 7 best Japanese-English electronic dictionaries. For a well-rounded device that's great for learners, we recommend Sharp's Color Electronic Dictionary Brain High School Model. Aimed at students, it contains a wide range of topics as well as study tools to help with memorization. See the rest of our picks below. And if you're having trouble deciding, our buying guide is full of tips and information to help you out.
    Home electronics, PC, camera
    8,542 views
  • Top 10 Best Keyboard Cleaners in 2021 (OXO, Cyber Clean, and More)
    Top 10 Best Keyboard Cleaners in 2021 (OXO, Cyber Clean, and More)
    Raise your hand if you can’t stop eating at your desk. (Over half of us here are guilty of that crime.) Over time, dust accumulates. Oils accumulate. Cheetos powder and Doritos flakes and Oreo crumbs accumulate. Before you know it, there’s enough gunk and goo under your keyboard keys to give birth to another Flubber.And you haven’t got the most delicate of movements, so you don’t trust yourself to pop off the keys for a good cleaning–that is, without breaking anything. (We feel you.) So we came up with a list of easier, less risky keyboard cleaning alternatives and a guide to help you figure out which cleaner is right for you.
    Home electronics, PC, camera
    22,163 views
  • Top 10 Best 17-Inch Laptop Cases in 2021 (Case Logic, Tomtoc, and More)
    Top 10 Best 17-Inch Laptop Cases in 2021 (Case Logic, Tomtoc, and More)
    Those who own 17-inch laptops know very well how bulky they become during transport. With the help of a laptop case in the form of a bag, sleeve, or backpack, you can carry your valuable device more efficiently and conveniently. Tomtoc’s laptop bag, for example, has 360-degree protection and a padded strap to lighten the load on your shoulders. We’ve picked out nine more noteworthy laptop cases for you to consider and created a buying guide to help you choose the best one.
    Home electronics, PC, camera
    4,648 views
  • Top 10 Best Memory Card Readers in 2021 (Apple, Anker, and More)
    Top 10 Best Memory Card Readers in 2021 (Apple, Anker, and More)
    Are you struggling to access the data on your memory card? Or, maybe you want to transfer images and video files from your camera to your laptop? Sadly, not all laptops come with a slot for memory cards. You will need a memory card reader to help you do the job! This helpful tool allows you to quickly transfer data from all types of memory cards to other devices, like computers and phones. After thorough research, Vanja's SD Card Reader got our attention for its three connection types, compact size, and dual-slots. Read on to see the other memory card readers that made it to our list. We've made sure to include a wide variety of products! We also discussed important pointers to keep in mind when shopping for a reader in our buying guide. 
    Home electronics, PC, camera
    81 views
  • Top 10 Best Portable Humidifiers in 2021 (Pure Enrichment, URPOWER, and More)
    Top 10 Best Portable Humidifiers in 2021 (Pure Enrichment, URPOWER, and More)
    The air we breathe is an obvious, yet important element that keeps us in good health. Dry air can lead to problems from cracked skin to compromised immune systems. Humidifiers have become a huge help to alleviate these issues; while some can be bulky and not ideal for use in small spaces or while traveling; fear not, portable humidifiers have come to the rescue!Keep reading, and you will find a curated list of our top 10 favorite portable humidifiers and a guide to help you make the right decision! Picking out the right humidifier may seem daunting, but we're here to take the stress off and get you clean, quality air that your body needs for any time of the year. 
    Home electronics, PC, camera
    951 views
  • Popular Expert Picks

    Search by Category