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.
JUOVI power bank
 Power Bank 65W 20000mA |  Power Bank 20,000mAh 90W |  Power Bank 20,000mAh 45W |  Power Bank 20,000mAh 35W |  Magnetic Power Bank 10000 |  Wireless Power Bank 5000 | |
|---|---|---|---|---|---|---|
Customer Reviews | — | — | — | — | — | — |
Price | — | — | — | — | — | — |
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 | 2 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*2.6CM | 13.7*7*2.6CM | 13.7*7*2.6CM | 11*7*2CM | 10.3*6.6*1.08CM |
Weight | 400g | 400g | 385g | 385g | 224g | 128g |
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.
JUOVI power bank
Power Bank 65W 20000mA | Power Bank 20,000mAh 90W | Power Bank 20,000mAh 45W | Power Bank 20,000mAh 35W | Magnetic Power Bank 10000 | Wireless Power Bank 5000 |
|---|---|---|---|---|---|
| Customer Reviews | |||||
| — | — | — | — | — | — |
| Price | |||||
| — | — | — | — | — | — |
| 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 | 2 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*2.6CM | 13.7*7*2.6CM | 13.7*7*2.6CM | 11*7*2CM | 10.3*6.6*1.08CM |
| Weight | |||||
| 400g | 400g | 385g | 385g | 224g | 128g |