Growing up in a small remote part of Northern Australia meant our only real form of entertainment was traveling and camping. My parents have always been huge camping fanatics. Out in the middle of nowhere with only a campfire and a good book to keep us occupied.
Being a parent myself now I continue to share my love of camping with my wife and children. But with more modern luxuries, to make the outdoors more comfortable.
The only issue is they all want to be connected to the outside world, not only with nature. So it became obvious we had to start to find a way to keep all of their smartphones, tablets, laptops, and radios powered up throughout the week.
So the task was on to find the best portable battery pack with an ac outlet.
There were a few important conditions, the AC outlet power bank had to be able to be charged from a small portable solar panel. Also, it has to be under 100 watts of the total power so it could be taken on airplanes. FAA rules state that all battery banks need to be under 100 watts of power.
For full specifications check out the Omnicharge tech specs pdf
So after checking out all the online reviews and reading countless reports on power management, I decided on two portable power packs with AC Outlets. They are the Omnicharge 20 and the Ravpower 27000mAh.
Both of these power banks suited our family needs and then some. So let’s go into our 6-month usage and check out the pros and cons of each. Why are they so different?
Portable Power Pack with AC Outlet, OmniCharge Review.
The Omnicharge is the bee’s knees of AC portable power banks. Its feature rich with a price tag to match, but you feel like you are actually getting value for money. Its low profile compact design is perfect for the mobile traveler. Hiking, camping, office worker, student, workshop engineer, portable power supply for electronics or frequent air traveler, you will have correct power ready to go.
I already own the fantastic Ravpower AC power bank but I needed another one that could also do a variable DC output. This is when I discovered the very new Omni20 and its smaller brother the Omni13 Ac power bank.
Power Bank with LCD display
The great thing about the Omnicharge 13 & 20 is they both come with an LCD display that will tell you everything you need to know about the health and power outputs of your AC power bank.
You have detailed information about
- Power in
- Power out
- USB power draw
- Power remaining in time as well as percentages.
- Able to change settings like DC volts out
- Do a battery calibration
- Turn on off functions like wireless charging.
The settings can be accessed by pressing the 3 buttons on the front of the power bank. With common presets available on the 1st LCD display menu screen.
The most common output voltages are quickly selectable for your device.
Once you have selected an output voltage you will be shown a warning confirmation screen. This is so you don’t damage your device by outputting the incorrect voltage.
You can also set incremental voltages in 0.1v steps. This is great for very fine control for driving exact volts for an electrical experiment in your lab.
How to Charge the Omnicharge
The main reason I purchased the Omnicharge 20 was that its one of the first portable power pack with AC outlet that can actually be charged from any power source. A fast wall charger is included but I love having the option to charge from any other power source from 4.5v up to 36 volts. AC or DC now that’s amazing.
This means you can use a foldable solar charger, a laptop USB port from a computer, other computer or display monitor power source, a car pocket size jump starter and even another power bank. Your recharge options are virtually unlimited. That’s the main selling point and the reason it’s slightly more expensive than the competition.
Battery powered electrical outlets
The Omnicharge-20 power bank has 3 main options to output electricity. You can have:
- USB output up to 3A per port. One port is QC3 fast charge compatible.
- 120v AC output limited to 100 watts maximum.
- Variable DC output selectable from 1v to 24v in 0.1v increments. So if you have a few different voltage laptops you can charge them all with the selectable voltage control. Perfect for the garage hobbyist requiring different DC output voltages.
Power Safety Protection System
It’s all well and good to have different input and output charging options but what happens if something goes wrong or there is a wiring issue. This powerful intelligent charging protection system not only makes the charging process easy but also it also protects and extends the battery life of your Omnicharge power bank. Each internal battery is a pack of 18650 Li-ion cells. Together they make 6 cells, with 73Wh 20400mAh at 3.6V.
Each internal battery is a pack of 18650 Li-ion cells. Together they make 6 cells, with 73Wh 20400mAh at 3.6V, full charge control of your device and internal batteries is paramount to a safe and long device life.
Omni Device Protection:
- Temperature Protection
- Short Circuit Protection
- Automatic Power-Off
- Reset Program Algorithm
- Self-Balancing Algorithm
- Overcharge Protection
Can I take the OmniCharge 20 and Ravpower 27000mAh on an Airplane?
Sure the great thing about these little power banks is that they are FAA approved. Because it’s under the 100w internal battery limit you will have no issues with it. Whats great is if you are on a long-haul flight, you can deplete your laptop battery and then fully charge it again.
All the battery powered electrical outlets can be used at the same time. So if you are flying with your family just put this power bank in the middle and run leads to each person device. Totally legal, totally fine.
Both Omni 13, Omni 20 and RavPower 27000 can be packed with you in your carry-on luggage. The capacity of Omnicharge 13600mAh is 49Wh. The Omnicharge 20400mAh has a 73Wh internal battery.
The Ravpower AC power bank is around 99w. They all fall within the Federal Aviation Administration’s safety limit of 100Wh maximum capacity.
To calculate watt hours, multiply the battery voltage by the Amp hours (Ah)
eg 20.4A x 3.6v = 73Wh
Click here for more detailed information on FAA air travel rules for power banks.
Can we charge a laptop with a power bank?
Yes, but normally only if it is a portable power pack with an AC outlet. Most normal Phone power banks are USB output only. These Alternating current power banks from OmniCharge and Ravpower have an included modified sine wave inverter which will convert the DC signal to a wave-like Alternating Current signal (AC.)
Some power banks also output a DC voltage like 19 or 20V. These can sometimes charge a laptop depending on current limits. The safest and easiest way is through an AC outlet battery power bank.
How to charge a laptop with a USB power pack?
If you are using the OmniCharge make sure to first plug in your laptop charger to the power bank. Then you should choose the output mode from the menu: Normally 120V AC mode or 150V HVDC mode.
- Double press the Power Button to enter the menu and choose AC/HVDC Output
- Choose AC mode or HVDC mode and then exit the menu
- Press the AC/HVDC button to activate the output function.
- You can see the corresponding icon appears on the screen
a) 120V AC mode: AC with a zigzag line beneath. It supports most of your devices just like your home wall outlet.
b) 150V HVDC: Shows DC with a straight line beneath. Its only supported by certain devices such as switch-mode power supplies. (SMPS, most modern AC/DC power adaptors are switch-mode power supplies such as Apple’s iPhone/iPad chargers and MacBook Air/Pro power adaptors).
If you don’t know just select 120v AC mode.
Wireless charging power bank
The Omnicharge is also a wireless charging power bank. A great feature is you can also see the power draw while your phone is magically charging through the air.
- Not all phones support wireless charging. Check your manufacturer if your phone is supported.
- Turn on USB output, which also activates the Qi wireless charging.(Qi wireless is turned on and off with the USB button)
- Find the optimal Qi wireless charging position, which is on top of the Omnicharge and at the back.
- You will know when you have found the optimal Qi wireless position. That’s when the output power on the display reaches 7 to 8 Watts. Please move your phone around slightly if the power reaches 4 watts or less.
- 3x fast USB ports.
- 1x AC 110v outlet.
Ravpower AC power bank Pros and cons
The big draw card to this power bank is its low cost. Compared to the OmniCharge 20 its nearly half the price. You do lose some features though for the discount.
- Large bigger internal battery compared to the OmniCharge 20
- Small lightweight design
- Fast 3x USB ports with Type-C 5V/3A & USB 5V/2.4A Outputs
- 27000mAh Capacity: Charge your iPhone 6s up to 11 times, a Galaxy S7 up to 6 times, and the 12 “MacBook for over 3 times
- Only LED lights to indicate power level left
- No DC output to charge a laptop. You have to use the AC output and your laptop charger.
- Need to use the fast wall charger. You cant charge it with a solar panel or another power bank.
- No wireless device charging.
How to Use
start automatically. If nothing happens after connecting your device, press the power button to restart
• Press and hold the Power Button to turn on the AC output. The AC output will shut o automatically
when no connection is made after powered on for 1 minute.
• Press the Power Button once to check the remaining battery level.
• Use a 19V/1.6A (max) adapter to charge the portable power outlet.
Note: When the battery is low and the output power is higher than that of input, the portable power outlet will
• When the AC output is off, press and hold the Power Button for 3 seconds to turn on the AC output. Press the
button again to show the remaining battery level.
• When the connected device is fully charged, the AC output will automatically shut off. Turn it on again before
charging another device.
• If the AC output fails, press the Power Button for 3 seconds to turn on the AC output again.
The RAVPower 27000mAh Portable Charger with Built-In AC Outlet pdf user manual can be downloaded from here.
How does the RAVPower #PowerStation 27000mAh Power Bank put an end to your daily charging problems?Check the link below for the ultimate fix to all charging needs:http://bit.ly/2fOISwu
Posted by RAVPower on Tuesday, November 29, 2016
AC Power bank Conclusion:
All these Ac power banks are so different to each other its hard to pick a winner. It’s going to be up to the end user to determine what you really need out of your portable ac power bank. I ended up just loving my Omnicharge 20 so many outputs and charging options.
OmniCharge 20 Pros
What I liked about the Omnicharge 20 was its ability to be recharged from any power source. Be it solar, another power bank, a wall power charger, another computer or any voltage from 4.5 volts all the way up to 36 volts. This is a game changer.
No longer am I looking for the correct wall charger just grab anything lying around and plug it in with the supplied end tip changing plugs.
I also liked that the output was able to be changed from 1 volt all the way up to 24v. It’s like having a variable DC power source on your workbench for all those special projects.
Ravpower 27000 mAh pros
Its also right on the edge of the biggest power bank that you can take on an airplane. This will give most laptops a full charge so you can finish that report or movie while traveling on those long flights.
Honorable Mention is the ChargeTech Portable AC Outlet Battery Pack – 27000mAh 85W / 110V
It’s hard to review both these great Air travel approved power banks without talking about the Chargetech. It was one of the first the AC outlets you can take on the go and is approved for air travel. It can power small devices such as laptops, lights, digital cameras and medical devices like a CPAP machine.
With a 27,000mAh capacity, the possibilities are endless. As featured on Wirecutter and NBC News, it was voted the best battery pack of 2017. Now available in Europlug Type C format. Model: PPO.
With the competition now getting more crowded, it’s great to see better features and prices. The Chargetech portable power outlet is starting to lose its crown, but I’m sure it won’t be long before we see them out with a newer better feature-rich model.
When I was doing my research in OmniCharger vs ChargeTech, my money was better spent buying a power bank that could output an exact DC voltage. I also needed it to be able to be charged from a cheap foldable solar panel. So the Omnicharge won out in the end.
The end result was the OmniCharge for features, but RavPower for the best price.