30000mAh power banks are real workhorses when it comes to providing power for sustained periods of time. They’re especially useful for charging high-capacity devices such as laptops several times over. However, since they have a capacity of around 111 Wh, they can’t be taken on flights without a special permit (read more). This is why they tend to be less popular than 20000mAh power banks which are under the 100Wh limit imposed by the TSA.
Since we write about power banks on a daily basis, we decided to create this curated list of what we believe to be the best 30000mAh power banks. The list is intended to be dynamic so that when we discover a new model that we believe should be mentioned, we simply amend the list. Thus, if you come back at a later time, you might find different models and/or a different order.
1. Best overall: the RAVPower 30000mAh Power Bank
This 30000mAh power bank from RAVPower is one of the best choices you can make at this capacity. An all-around sound power bank that would satisfy almost any owner. It provides up to 90W of max power via the PD bidirectional USB-C input/output port, ideal for charging any USB-C devices, including laptops. Additionally, the USB-C port supports a power intake of 60W, which helps it recharge in just 2.5 hours. You will need a PD 60W wall charger to take advantage of this.
It also features a USB-A port (iSmart) that allows you to charge your smartphones, delivering up to 18W of max power. If you use both the USB-C and USB-A ports simultaneously, the power banks will deliver a combined 83W of power. Even then, the USB-C port supports Programmable Power Supply (PPS), which charges a Samsung Galaxy S20/20+ in one hour.
For its capacity, the RAVPower 30000mAh is very light and compact, making it one of the most portable options. Overall, it’s perfect for camping trips, hiking, or general use on a daily basis. Although you can’t fit it in a pocket, you won’t notice it in your bag, purse, or backpack.
2. Best for outdoors: the ZeroLemon 30000mAh Power Bank
The ZeroLemon 30000mAh power bank is designed to be a highly durable portable charger that can take a punishing. The rugged mate black casing is designed according to a patent-pending solution. Thus, it’s ideal for activities such as camping, fishing, or hiking.
Besides the sturdy build, the ZeroLemon 30000mAh also stands out due to its multitude of output ports, which offer unmatched connection flexibility. It features one USB type C port and 4 (yes, four!) USB type-A output ports, one of which is also Quick Charge 3.0 compatible. Furthermore, it can quickly get recharged in just 3.5 hours provided you use a fast USB type C charger.
Another feature worth mentioning is its 45W power output which can easily charge laptops such as the MacBook Pro or gaming consoles like the Nintendo Switch. In terms of charging capacity, it can charge an iPhone 11 Pro Max up to 11 times, and a Note 10 Plus 7 times.
Read our full review on the ZeroLemon 30000mAh power bank.
3. Best budget option: the ROMOSS SENSE8P+ 30000mAh Power Bank
The ROMOSS SENSE8P+ is one of the most affordable 30000mAh power banks. For a pretty low price, you can get a power bank that not only has a huge capacity, but it also comes with a bidirectional USB type C port, an input Lightning port, and two USB type-A ports that are Quick Charge-compatible.
It can provide up to 12.6 charges to the iPhone 8, 4 charges to the Nintendo Switch, and 4 charges to the iPad Pro. Its maximum power output is 18W, which is enough to quickly charge the average smartphone or tablet.
However, it does have some downsides too. For once, the 18W power output is not enough for charging power-hungry laptops. It also does not feature Power Delivery, which would have come in handy for the USB type C port. But most of all, it has a pretty lengthy recharging time of 11 hours. Compared to its competitors, this is quite slow.
All-in-all, the ROMOSS SENSE8P+ is the perfect choice for you if you’re looking to get the most capacity for the least investment and if you don’t care about things such as being able to charge laptops or the power bank’s recharging time.
Read our full review on the ROMOSS SENSE8P+ 30000mAh power bank.
4. Best with an AC outlet: the RAVPower 30000mAh Power Bank
The RAVPower 30000mAh is a highly powerful device capable of delivering a power output of up to 100W or even 150W if two different ports are used. But maybe one of the most important features, that sets it aside from other 30000mAh power banks, is its AC outlet socket. This is a handy feature as you can simply plug your laptop directly into the portable charger.
Besides the AC outlet, the RAVPower 30000mAh also comes with a bidirectional (input/output) USB type C port that supports Power Delivery, and with two USB type A ports that support Quick Charge 3.0. All-in-all, these fast charging technologies behind the RAVPower 30000mAh will power up your devices in a very short amount of time.
This is a great device for keeping you powered for extended amounts of time, for example on camping trips or during emergencies. As a reference, it can power the iPhone 11 Pro Max up to 4.8 times and the 2018 iPad Pro 2.5 times.
How many charges will a 30000mAh power bank provide?
As previously discussed on our site, the real capacity of a power bank is smaller than it’s actual capacity. Roughly speaking, you’ll get about 75% of the listed capacity. So a 30000mAh power bank will provide an actual charge of around 22500mAh. Listed below are some popular battery capacities which you can find in mobile phones. Check how much capacity your phone’s battery has and you can estimate the number of chargers you can expect from a 30000mAh portable charger.
|Phone battery capacity||Number of chargers by 30000mAh power bank|
For example, the iPhone 12 has a battery capacity of 2227mAh. This means that you can expect about 10 full chargers from a 30000mAh power bank and not 13.5 as it would seem at first sight from the listed capacity.
How to take a 30000mAh power bank on a flight
Since the max limit for Li-Ion batteries imposed by the FAA is 100Wh, 30000mAh power banks don’t make the cut. But they’re not completely forbidden also. Batteries between 100Wh and 160Wh can be taken on board, however, they require a special permit.
So in order to fly with your 30000mAh power bank, you’ll need to contact your airline beforehand in order for them to help you receive the special permit. It would also be a good idea to contact all the airports you’ll be passing through, too. Especially if you’re traveling internationally. It’s possible that local airports from foreign countries have stricter rules. So to avoid any type of unpleasant situation, it’s best to get in touch with the airports as well, not only with the airlines.
Also, remember that you’re allowed to have a maximum of two different batteries with you. So if you have another power bank of equal or smaller capacity, you’ll be fine. But if you have 3 or more, you’ll most likely have to let one or more of them go at the security checkup.