Oraimo PowerNova Q21 vs Q31 vs Q41 in Nigeria: Which Power Bank Should You Buy?

The Oraimo PowerNova Q21 vs Q31 vs Q41 choice comes down to ₦19,900 and a few spec-sheet details that are easy to misread. On 4 October 2026, Oraimo’s Nigerian store listed the 20,000mAh PowerNova Q21 at ₦24,000, the 30,000mAh PowerNova Q31 at ₦34,900 and the 40,000mAh PowerNova Q41 at ₦43,900. All three charge your phone at the same top speed, so what you’re really paying for as you move up is capacity, an extra port on the Q41 and quicker refilling when power comes back.

They’re official products sold through Oraimo’s own Nigerian channels, so this isn’t a grey-import decision. We haven’t tested these three hands-on, so the comparison below is built from Oraimo’s published specifications and its current naira prices. The good news is that the spec sheets answer most of the questions that matter, as long as you read the small print on wattage.

	PowerNova Q21	PowerNova Q31	PowerNova Q41
Price on Oraimo Nigeria	₦24,000	₦34,900	₦43,900
Capacity	20,000mAh (74Wh)	30,000mAh (111Wh)	40,000mAh (148Wh)
Fastest output to a phone	22.5W	22.5W	22.5W
Outputs	2 USB-A, 1 USB-C	2 USB-A, 1 USB-C	2 USB-A, 2 USB-C
Total output, all ports in use	5V/3A max	5V/3A max	30W max
Recharging the power bank	20W via USB-C	20W via USB-C	Up to 35W using both USB-C inputs
Display	Digital display	Digital display	Digital display
Model number	OPB-7200Q	OPB-7300Q	OPB-7401Q

PowerNova Q41 wins on 4 of 8 counts.

The “35W” on the PowerNova Q41 isn’t about charging your phone faster

Oraimo markets the Q41 as a 35W power bank, and it’s natural to assume that means faster phone charging than the 22.5W Q21 and Q31, but the spec sheet tells a different story. The Q41’s USB-A ports and its main USB-C port each top out at 22.5W, exactly like the smaller two, while its second USB-C port is capped at 15W. The 35W figure is the combined input when you refill the Q41 through both USB-C ports at once (20W plus 15W), which matters because a 40,000mAh bank takes a long time to fill from empty.

So if your main question is which one charges your phone fastest, the answer is that they’re level. A phone that supports 22.5W fast charging over QC, PD, SCP or FCP will get the same top speed from any of the three. If your phone charges at a higher wattage with its own brick, don’t expect any of these to match that, and our guide to which charger watts your phone actually needs explains why.

Charging three or four devices at once is where the Q41 pulls ahead

All three can charge several devices together, but the spec sheets list very different totals when you do. The Q21 and Q31 both show a total output of 5V/3A, which suggests that once you plug in more than one device, fast charging drops off and the ports share roughly 15W between them. The Q41 lists a 30W combined maximum across its four outputs. If you regularly charge a phone, a second phone and a pair of earbuds together during a long outage, that higher shared ceiling is the Q41’s most practical advantage.

For a single phone, though, you won’t feel this difference at all. Most people plug in one device, take it off, then charge the next, and in that pattern the Q21 and Q31 perform just like the Q41 per port.

Flying soon? The PowerNova Q31 and Q41 need extra care at the airport

Watt-hours decide whether a power bank can travel in your cabin bag, and this is where the three split clearly. The Q21 is rated at 74Wh, which sits under the 100Wh line most airlines allow without approval. The Q31 is listed at 111Wh and the Q41 at 148Wh, which puts both in the 100Wh to 160Wh band where airlines typically ask you to get approval first and limit how many you carry. Power banks also can’t go in checked luggage at all, so don’t pack any of them in your suitcase.

If you travel often between Lagos, Abuja and Port Harcourt, or fly abroad, the Q21 is the least stressful choice. Our explainer on taking a big power bank on a plane covers what to check with your airline before the trip.

PowerNova prices you can check against Oraimo’s own store

Oraimo runs frequent discounts on its Nigerian store, so the boxes below show the sale price as the low end and the listed original price as the high end. If a seller elsewhere is asking far below Oraimo’s sale price, treat that as a reason to inspect the unit carefully rather than as a bargain.

₦24,000–₦26,670

Official stock

Last checked: 4 October 2026

Sale and original prices on Oraimo's Nigerian store.

₦34,900–₦40,600

Official stock

Last checked: 4 October 2026

Sale and original prices on Oraimo's Nigerian store.

₦43,900–₦48,900

Official stock

Last checked: 4 October 2026

Sale and original prices on Oraimo's Nigerian store.

Per ₦1,000 spent, the Q41 actually gives you the most capacity, and the Q31 sits in the middle. That makes the Q41 better value than its price tag suggests if you’ll use the extra capacity, while the Q21 is the better buy if you won’t. Keep in mind that no power bank delivers its full rated mAh to your phone, because some energy is lost converting voltage, so it’s worth reading our guide on how to tell if a power bank holds what it claims before you rely on the box figure.

Pros

• Largest capacity of the three at 40,000mAh (148Wh)
• Four outputs, including two USB-C ports
• 30W total output when charging several devices
• Refills at up to 35W using both USB-C inputs
• Lowest cost per mAh of the three on current prices

Cons

• No faster than the Q21 or Q31 for a single phone
• 148Wh needs airline approval for cabin baggage
• Oraimo rates it at up to 300 charge cycles, so heavy daily use will wear it sooner

Check these before you pay for any PowerNova

Oraimo power banks are widely copied in Nigerian markets, and a fake can be dangerous as well as disappointing, so take a few minutes at the counter to run through these checks.

• Match the model number on the box and the unitQ21 is OPB-7200Q, Q31 is OPB-7300Q and Q41 is OPB-7401Q.
• Compare the price with Oraimo's own storeA price well below Oraimo's current sale price is a warning sign.
• Check the capacity and Wh printed on the casingLook for 74Wh, 111Wh or 148Wh to match the model you're paying for.
• Plug in a phone and watch the displayThe digital display should show output and battery level, and a fast-charge capable phone should show fast charging.
• Look for swelling, rattles or a warm casingDon't buy a unit that's bulging or hot while idle.
• Keep your receiptYou'll need proof of purchase for any warranty claim.

Oraimo PowerNova Q21 vs Q31 vs Q41: which one fits your day?

Buy the Q21 if you mainly need to get one phone through the day, you fly often, or you’d rather keep the money. It charges a single phone just as fast as the bigger two and is the simplest to fly with. Pick the Q41 if you’re covering long outages for a household, charging several devices at once, or you want the best capacity for your naira, and accept that it needs airline approval if you travel with it. The Q31 sits awkwardly in between, because it has the same airline hurdle as the Q41 without its extra port or faster refill, so it only makes sense if ₦10,900 is the most you can stretch past the Q21. If your outages run into days rather than hours, our portable power station guide is the better place to start.

Buy it if

• Q21: you charge one phone a day or fly often
• Q41: you power several devices through long outages
• Q41: you want the most capacity per naira

Skip it if

• Q41: you expect faster phone charging than the Q21
• Q31 and Q41: you fly regularly and don't want to seek airline approval
• Q31: you can afford the Q41, which adds a port and faster refilling

The PowerNova Q21 is the right buy for most single-phone users and frequent flyers, while the Q41 earns its price for households riding out long outages with several devices.