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JUOVI Power Bank 45W 20000mAh Portable Charger (opens Amazon in a new tab)
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About this essential
Product description
Why do I get fewer charges than expected from this power bank?
Power loss occurs from voltage conversion and circuit heat. Normally only 60%-70% of cell capacity can be delivered to devices. You may estimate cycles with the standard formula. Actual results vary by cable, temperature and device.
Why can’t the power bank continuously maintain its listed maximum charging power?
Listed max power is peak output. Built-in multi-protection includes overcharge, over-temperature and short-circuit protection. It automatically reduces power when hot. The power bank may stop charging if overheated and resume after cooling.
Can I bring this power bank onboard a plane? Can it be checked in luggage?
Rated energy 74Wh. Power banks ≤100Wh are generally permitted for cabin carry. It complies with TSA and most airline carry-on rules. Cannot be checked in. Airline policies differ. Please verify with your airline before travel.
How can you troubleshoot when facing the issue?
1. Check connection between power bank & device. 2. Clean port; dust may block charging. 3. Test with another cable/device. 4. If issue remains, record fault video & contact support. Reply within 24hrs. 18-month support for factory hardware defects.
Why does it take much longer than 2 hours to fully charge this power bank with my current charger?
2-hr fast charge requires a ≥45W PD charger (e.g. 45W/65W or higher) plus a 45W (3A) cable. Lower-wattage chargers (18W/30W) limit input and extend charging time. Use a compatible fast-charging set.
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Customer Reviews
4.4 out of 5 stars 4,880
4.3 out of 5 stars 206
4.4 out of 5 stars 1,103
4.2 out of 5 stars 397
4.2 out of 5 stars 418
3.5 out of 5 stars 310
Price
$32.98$32.98
$49.99$49.99
$34.82$34.82
$26.99$26.99
$29.99$29.99
$23.98$23.98
Capacity
20000 milliamp hours
20000 milliamp hours
20000 milliamp hours
20000 milliamp hours
10000 milliamp hours
5000 milliamp hours
Number of ports
4
4
4
4
1
1
Charging Ports
2 USB-A + 2 USB-C
USB-A + 2 USB-C
2 USB-A + 2 USB-C
2 USB-A + 2 USB-C
USB-A + USB-C
USB-C + USB-C Cable
Airline Approved
✔
✔
✔
✔
✔
✔
Size
13.7*7*2.6CM
13.7*7*1.6CM
13.7*7*2.6CM
13.7*7*2.6CM
11*7*2CM
10.3*6.6*1.08CM
Weight
382.7g
400g
400g
382.7g
224g
128g
45W High-Speed Charging for Phones, iPad & Gaming Devices：JUOVI 45W power bank delivers up to 45W via USB-C and 30W via USB-A. Charge an iPhone 16 Pro to 60% in about 30 minutes, an iPad Pro to 50% in approximately 45 minutes, and keep gaming devices like Switch or Steam Deck powered during long sessions. To ensure fast-charging efficiency, laptop charging is recommended for emergency use only (please refer to your device's input power).
20000mAh High Capacity & 74Wh Airline-Friendly：Built with a 20000mAh 74Wh battery, this portable charger provides multiple full charges for phones, tablets, and gaming consoles—enough to keep you powered through short trips, camping, or long commutes. meets most airline carry-on requirements. Actual charging times vary by device and usage.
Charge Up to 4 Devices at Once (Total 40W Shared)：Features 2 USB-C and 2 USB-A ports. Single-port output reaches up to 45W (USB-C) or 30W (USB-A). When charging multiple devices, total output is up to 40W, so power is shared across ports. Ideal for sharing with family or friends on trips, at gatherings, or during commutes.
45W Two-Way Fast Recharge & Low-Current Mode：The USB-C port supports up to 45W input and output. Recharge the power bank in about 2 hours with a 45W+ PD charger (not included). Double-click the power button to enter Low-Current Mode for AirPods, Bluetooth headphones, smartwatches, and other low-power devices; double-click again to exit. This gentle trickle charging helps prevent overcharging and preserve battery health—one power bank that safely handles everything from laptops to earbuds.
Safe Charging Protection & Smart LED Display：This portable charger battery bank protects your device against possible overvoltages, overloads, overheating, overcurrents, and short circuits. The built-in LED digital display shows remaining power from 0–100% in real time, so you always know if you have enough charge to finish your game, movie, or work session. Compatible with AFC/ PD 2.0/PD 3.0, QC 2.0/QC 3.0 etc. Backed by a professional after-sales service team, always ready to assist you.
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