RAVPower PB134 5000mAh Portable Charger REVIEW

Over the years, I’ve gotten to be a connoisseur of portable batteries. I’ve had the opportunity to review a lot of different styles of power banks. Even though I like the charging stations that give you the option of charging many different devices at one time, the smallest power banks are still my favorites. They are the easiest ones to carry around no matter what type of day-pack you carry and most of the time, you can even store them in your pocket. It’s been a while since I’ve had a high-capacity, small form power bank and that’s why I was ecstatic to be able to test out the 5000mAh Portable Battery from RAVPower.



  • Battery Voltage: 3.7V
  • Battery Capacity: 5000mAh
  • Battery Cells: Premium Grade A Cells
  • Charger Input: Micro-USB 5V / 2.0A max
  • Charger Output: 5V / 2.4A

What’s in the Box:

  • 1 x RAVpower Charger
  • 1 x Micro Cable
  • 1 x Storage Bag
  • 1 x User Guide
  • 1 x Thank You Card


  • Check the battery level
  • Charge your phone or tablet
  • Recharge your portable charger

There are some illustrations, which are helpful and a chart that shows what the different battery level indicator lights are (4 = 100%, 3 = 75%, 2 = 50%, 1 = 25%). One of the things that sort of irked me a little was that there was a note at the bottom of the instructions that read, “To obtain the fastest, safest recharge, use a RAVPower USB charger.” The reason this is a bit annoying is that one isn’t included with the battery. I actually ran the battery down to 0% and recharged it using a charging station (USB connection = up to 2.4A output). After about 70 minutes, the battery had reached 50% and was working on charging the next 25%.

Many of the power banks I have used in the past few years support pass-thru charging — meaning you can be charging the battery and your device at the same time. The connection to a power source will charge your connected device first and then the battery will charge. While the instructions don’t say whether or not it will support pass-thru charging, I was able to find an answer from RAVPower Customer Care on Amazon that answered the question.

Question: “Can this device charge itself while powering another device?”

Answer: “Yes, it can be work, but we do not recommend this method.The best way to use the power bank by full charge the portable charger first and then charging your phone.” (RAVPower Customer Care)

I found this surprising because it seems to be a fairly normal function of many portable batteries these days.

When it came to testing how well the portable battery would charge my iPhone XS, I was actually in for another surprise. My phone’s battery was at 31% when I plugged it into the battery. I was using a third party charging cable, but it’s been reliable for me and I’ve never had any issues with it. After 27 minutes, my phone had gained 30% battery power from the power bank. That translates to a 1.1% gain per minute, which is pretty fast by power bank standards. While I was very happy with how well the battery seemed to charge my phone, I was not happy with how hot the battery got at its charging port. I picked up the battery and was almost burned because I closed my hand around the power bank tightly not thinking it would be warm at all. I used an infrared thermometer to take a temperature reading and found that around that end of the battery, the temperature varied from 99º all the way up to 133ºF. Most manufacturers of will state that 140º is the maximum safe temperature you should expect to see from an electronic device like this. And to me, 133 is just a bit too close to 140 for my comfort.

That said, the battery did cool down rather quickly and I didn’t have the same experience when I charged the battery from the power station using the provided Micro USB cord. I still feel it’s good to be cautious when charging a device from this power bank. I would not recommend stowing it away while an iPhone is connected.


For more information, visit ravpower.com
Find RAVPower on Facebook and Twitter.


Originally published at macsources.com on January 30, 2019.



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