JUOVI Power Bank 45W 20000mAh Portable Charger with Detachable Cable (opens Amazon in a new tab)

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.

45W High-Speed Tablet & PD 3.0 Fast Charging: This power bank delivers a full 45W of PD 3.0 fast charging through its dual USB-C ports. It provides high-speed charging for compatible tablets and phones, such as recharging an iPad Pro to 50% in approximately 45 minutes, and an iPhone to 60% in just 30 minutes. With reliable power for your tablet, phone, and other devices during travel, remote work, or daily use, it offers a versatile charging solution for professionals, students, and so on
Massive 20000mAh Capacity & Charge 4 Devices Simultaneously: With high-capacity 20000mAh battery, this power bank provides extended power for all your adventures. It features 2 USB-C (45W) and 2 USB-A (30W) ports, allowing you to charge up to 4 devices—like your tablet, phone, earbuds, and smartwatch—all at once. It's your ultimate travel essential for camping, flights, or daily commutes
Dual-Mode Charging for All Devices & Trickle Mode：This versatile charger is designed for every gadget. The default high-power mode perfectly fuels laptops and tablets. A simple double-press to Low-Current Mode, providing safe, gentle trickle charging for your delicate devices like AirPods, Bluetooth headphones, and smartwatches, helping to preserve their battery health
Smart Digital Display & Real-Time Power Monitoring：Never guess how much juice is left. The built-in precision digital display gives you real-time visibility into the remaining battery percentage and charging status. Instantly know if you have enough power to finish your work, game, or movie. This allows you to accurately predict runtime and plan your day, eliminating the anxiety of sudden shutdowns during commutes, travel, or outdoor adventures. Stay informed, stay in control
Safety Protection & Detachable 2-in-1 Cable：Multi-protection against overcharging, overheating, short-circuit, overcurrent, with smart chip monitoring. The detachable cable is a 2-in-1 charger and lanyard with hook – clip to bag or wrist, or use separately. No tangled wires. Package: 1×Power Bank, 1×Detachable USB-C Cable & Lanyard, 1×Manual

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