(Last Updated On: December 12, 2020)

Power banks that have many charging ports are sought to be the more reliable kinds of portable chargers simply because you can charge multiple devices at once.

Not only that, but power banks with many charging ports also generally have larger power capacities and that means that you can use them more often. With that said, power banks that have a single charging port are just as useful because they’re smaller and easier to handle.

Also, you’re most likely going to have the same powering capabilities that a large power bank would have except for many charging ports, and high power capacity.

This is the RAVPower RP-PB17 Portable Charger 6700mAh Power Bank and even though it has just a single charging port, it’s capable of a lot.

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Power

Power Capacity:

The RAVPower 6,700mAh power bank makes use of Panasonic batteries and they’re able to improve upon conversion during charging and Panasonic batteries can last longer.

With that said, the conversion rate of this power bank is still normal because it has a 70% conversion rate that ultimately results in 4,690mAh of Output power capacity that you’ll be able to use.

It’s with 4,690mAh that you’ll be able to charge most smartphones about 2.5 full times, and that really what we recommend using with this power bank. This is because you’ll be able to get multiple uses from the portable charger by simply using smartphones to charge it with.

However, the power bank can still do a pretty good job when it’s charging tablets, but mostly Mini tablets because you’ll be able to charge iPads like an iPad Mini 2 or iPad Mini 4 to about 80% of their full power, but that’s going to take the entirety of the power bank’s capacity.

If you’re charging a Full-sized tablet like an iPad 12-Inch then it’ll be able to charge about 50% of the way through.

So the power capacity is generally designed for smartphones, but can still do a pretty good job of charging tablets. The charging speed, though, is where both smartphones and tablets can win.

Devices	RP-PB17 6,700mAh Power Bank (Output Capacity = 25,500mAh)	Phone Capacity	RP-PB17 6,700mAh Power Bank Left Over Capacity after One Charge # of Full Charges for the Device
iPhone SE	4,690mAh	1,624mAh	3,066mAh Left Over 2.8 Full Charges
iPhone 6	4,690mAh	1,810mAh	2,880mAh Left Over 2.5 Full Charges
iPhone 6 Plus	4,690mAh	2,915mAh	1,775mAh Left Over 1.6 Full Charges
iPhone 6s	4,690mAh	1,715mAh	2,975mAh Left Over 2.7 Full Charges
iPhone 6s Plus	4,690mAh	2,750mAh	1,940mAh Left Over 1.7 Full Charges
Samsung Galaxy S6	4,690mAh	2,550mAh	2,140mAh Left Over 1.8 Full Charges
Samsung Galaxy S6 Edge	4,690mAh	2,600mAh	2,090mAh Left Over 1.8 Full Charges
Samsung Galaxy S7	4,690mAh	3,000mAh	1,690mAh Left Over 1.5 Full Charges
Samsung Galaxy S7 Edge	4,690mAh	3,600mAh	1,090mAh Left Over 1.3 Full Charges
Samsung Galaxy S8+	4,690mAh	3,500mAh	1,190mAh Left Over 1.3 Full Charges

Output Charging:

The RAVPower power bank uses a single charging port. This single charging port has a charging speed of 5V/2.4A, which can charge most smartphones at their max charging speeds. Devices that won’t be able to charge at their max charging speeds are those compatible with Quick Charge, because this power bank does not feature Quick Charge technology.

You’ll also be able to charge tablets at their max charging speeds because tablets like iPads can charge at 5V/2.4A.

Input Charging:

It’s able to recharge at 5V/2.0A and if you’re using a 2 Amp wall charger or higher then the power bank will be able to recharge within 6-7 hours. Don’t use a lower-powered wall charger because that will result in a much slower recharging speed.

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Design

Size and Weight:

The highlighted part of this power bank is just how small it is.

It has a length of 3.5 inches, a width of 1.6 inches, and a thickness of 0.8 inches. The weight of the power bank is 4.8 ounces only. The size and weight of the power bank come together to make a power bank that is very easy to carry in a single hand, you can place it into a bag or maybe even your pocket, but that might be a tight fit.

This portable charger is made for on-the-go purposes, and when you couple that with its power, not many power banks can accomplish such feats of power and portability being combined.

Functional Components:

All of the functional parts of the power bank are on a single side of the charger, which includes the power button, the USB Output charging port, the Micro-USB Input port, and 4 Blue LED power capacity indicators.

Charging automatically starts when you plug a device into the power bank and that means the power button is mainly to check the power capacity that’s left. An easy to use power bank that’s just as easy to carry around.

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Build

Structure and Material:

The RAVPower charger has an anodized finish with aluminum alloy and that makes it durable enough to be used every day. Also, quite a surprising thing is that the center of the charger is just one single large piece and then there’s just the 2 side panels. The fewer the pieces that are used, the fewer chances it has of falling apart on you.

Tech:

On the tech side, the power bank makes use of safety tech to Control-Current, Temperature Control, Short-Circuit, and Surge Control. Also, the use of Panasonic batteries makes the power bank very reliable to use in the long run because it’ll be able to hold onto its initial power capacity for a longer time.

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Reliability

Even though this power bank has just one charging port, that isn’t much of a fault because all the features that surround the single charging port are quite amazing.

It has fast charging, enough power capacity to charge smartphones multiple times and the size/weight of the portable charger makes it easy to take nearly anywhere. The RAVPower 6,700mAh power bank proves that you don’t need lots of charging options or an insanely high power capacity to be deemed reliable. It’s the value that you offer.

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Summary:

Power:

The power capacity is quite average in terms of the conversion bringing it down but it’s very useful for charging smartphones, which is most likely the reason you’re purchasing the power bank.

Also, the charging speed of the single port that it uses is 2.4A and that’s able to charge most devices at their max charging speeds, which includes tablets.

Design:

It’s very small and lightweight, which makes it a great power bank to just hold while you’re walking and using your smartphone at the same time.

Build:

Even though it’s no rugged power bank, it still holds its own very well because it has an Aluminum shell and has very few pieces that make the portable charger whole.

Reliability:

You won’t be charging multiple devices at the same time and neither will you be charging tablets lots of times. However, for what it has with its 1 charging port, we think that it’s very reliable for just a single person.

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Specs of the RAVPower RP-PB17 Portable Charger 6,700mAh Power Bank:

• Power Capacity: 6,700mAh
• Output:   5V/2.4A
• Input:      5V/2.0A
• LED Power Indicators: 4 Blue LED Dotted Power Capacity Indicators
• Size: 3.5 x 1.6 x 0.8 inches
• Weight: 4.8 Ounces

Conclusion:

Most power banks that have a single charging port usually have slow charging, a lower power capacity, and they’re simply not built very well because they’re built with the thought process of being low quality for having just one charging port. That shouldn’t be the case, though.

This RAVPower portable charger provides lots of high-quality features within each of its areas with its fast charging, power capacity that holds up even when being lowered during charging, and awesome portability that allows you to take the awesomeness wherever you go.