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SPECIFICATIONS

Battery Charging Efficiency: iPhone 15 1.9 Times Samsung S22 Ultra 1.3 Times 20000mAh Capacity

Battery Type: Lithium battery

Brand Name: NONE

Certification: pse,weee,RoHS,CE,KC,UL,FCC

Device Compatibility Keywords: For iPhone 15 Samsung S22 Ultra iPad Pro MacBook Air Switch Steam Deck

Features: Digital Display

High-concerned chemical: None

Input Interface: Micro USB

Low Current Protection Mode: Trickle Charge Mode for AirPods Smartwatch Bluetooth Headphones

Max Output: 45W

Maximum Output Power (PD): 65W USB C PD Fast Charging for Laptop Tablet MacBook iPad Pro

Model: J2621

Origin: Mainland China

Output Interface: Double USB,USB-Type C

Package Contents & Cable: Included USB C to C Cable 1ft User Manual Portable Charger

Power Bank Capacity Grade: 20000mAh High Capacity Laptop Power Bank for Travel Camping

Safety Protection Chipset: Overcharge Overheat Short Circuit Overcurrent Protection System

Shell Material: Plastic

Smart Display Function: Digital Percentage Display Real Time Battery Monitor

Support Quick Charge Technology: Two-way Quick Charge

Total Ports & Charging Quantity: 4 Ports 2 USB C 2 USB A Charge 4 Devices Simultaneously

Type: Portable Power Bank

USB-A Output Specification: 30W QC 4.0 USB A Port for Phone and Accessories

JUOVI 45W 20000mAh PD Fast Charging Power Bank with 4-Port Output & Digital Display

Power through your busiest days and longest trips with the JUOVI 20000mAh portable charger. Built for multi-device users, this high-capacity power bank features dual 45W USB-C ports and dual 30W USB-A ports, enabling simultaneous charging of up to four devices. Whether you're powering a laptop for remote work, keeping your tablet entertained on a flight, or topping up your phone and earbuds, this compact powerhouse is your all-in-one travel companion.

Product Features

  • Massive 20000mAh & Multi-Device Charging: Charge up to 4 devices at once with 2 x USB-C (65W Max) and 2 x USB-A (30W Max) ports. Provides approximately 1.9 charges for iPhone 151.3 charges for Samsung S22 Ultra, and 1 full charge for iPad Pro.

  • 45W Laptop-Grade Fast Charging: Powerful enough to charge USB-C laptops, MacBooks, and tablets at full speed. Get hours of productivity in just a short top-up.

  • Dual-Mode Charging with Trickle Charge: Default high-power mode fuels large devices. Double-press the power button to activate Low-Current Mode, safely charging delicate electronics like AirPods, Bluetooth headphones, and smartwatches without damaging battery health.

  • Precision Digital Display: The smart LED screen shows exact remaining battery percentage in real time. Plan your usage confidently and avoid unexpected power anxiety during travel, commutes, or outdoor adventures.

  • Universal Laptop & Phone Compatibility: Compatible with iPhone 15 series, Samsung Galaxy S22/S23/S24, iPad Pro, MacBook Air/Pro, Dell XPS, HP Spectre, Nintendo Switch, Steam Deck, and most USB-C powered devices.

Specifications Table

Attribute

Details

Model

JUOVI 45W 20000mAh Power Bank

Battery Capacity

20000mAh (High-Density Lithium Polymer)

Total Ports

2 x USB-C + 2 x USB-A (Charge 4 Devices Simultaneously)

USB-C 1/2 Output (PD)

45W Max (Supports Laptop & MacBook Fast Charging)

USB-A 1/2 Output (QC)

30W Max (Optimized for Phones & Tablets)

Digital Display

Real-Time Battery Percentage Indicator

Charging Modes

High-Power Mode / Low-Current Trickle Charge Mode

Safety Protection System

Overcharge, Overheat, Short-Circuit, Overcurrent Protection

Device Recharge Estimates

iPhone 15 ≈ 1.9 Times | Samsung S22 Ultra ≈ 1.3 Times | iPad Pro ≈ 1 Time

Dimensions & Weight

Compact Travel Design (Specific dimensions available in manual)

Usage Scenarios

Designed for the modern, multi-device lifestyle:

  • Business Travel & Remote Work: Charge your laptop and phone simultaneously from a single power bank during layovers or coffee shop sessions.

  • Family Vacations & Camping: One central charger powers everyone's tablets, phones, and speakers around the campfire or on the road.

  • Daily Commutes & Campus Life: Never fight for a wall outlet again. Keep your phone, tablet, and wireless earbuds ready for the day.

  • Gaming On-the-Go: Extended playtime for Nintendo Switch and Steam Deck without being tethered to a wall.

Package Contents

  • 1 x JUOVI 45W 20000mAh 4-Port Portable Power Bank

  • 1 x USB-C to USB-C Fast Charging Cable (1 ft / 30cm)

  • 1 x User Manual

Important Notes for Optimal Performance

  • Activating Trickle Charge Mode: For small accessories (wireless earbuds, fitness trackers, smartwatches), please double-press the power button to enter Low-Current Mode. This ensures safe, slow charging that preserves delicate battery health.

  • Maximizing 45W Speed: To achieve full 45W laptop charging speeds, ensure you are using a 45W or higher rated USB-C cable (the included cable supports fast charging) and that your device supports USB-C Power Delivery (PD).

  • Recharging the Power Bank: For fastest recharge of the power bank itself, use a 65W or higher USB-C PD wall charger (wall adapter not included).

  • Temperature Notice: It is normal for the power bank to feel warm when charging multiple devices at high speeds or during 45W output. The intelligent chip actively manages temperature to ensure safe operation.

  • Capacity Clarification: The rated capacity of 20000mAh refers to the internal battery cells. The actual output capacity delivered to your devices varies based on voltage conversion and cable efficiency (typically 65-75% of rated capacity), which is standard for all power banks.