The JUOVI J2651 Portable Charger is a high-capacity 20,000mAh power bank designed for fast and efficient charging of multiple devices. Featuring 35W Power Delivery (PD3.0) and Quick Charge (QC4.0+) technology, it ensures rapid power delivery to your smartphones, tablets, earbuds, smartwatches, and even compatible laptops. Its versatile design includes two USB-C ports (bidirectional for input and output) and two USB-A output ports, allowing simultaneous charging of up to four devices. The integrated LED display provides real-time battery percentage, while multiple safety protections ensure secure operation.
Key Features
35W High-Speed Charging: Equipped with QC4.0+ and PD3.0 for rapid charging of compatible devices.
20,000mAh Ultra Capacity: Provides multiple charges for most smartphones and tablets, reducing power anxiety.
4 Charging Ports: Includes 2 USB-C (bidirectional input/output) and 2 USB-A output ports for simultaneous charging of up to four devices.
Bidirectional USB-C: USB-C ports support both power input and output, offering flexibility for various devices.
Low Current Mode: Ideal for safely charging small devices like Bluetooth earbuds and smartwatches without overcharging.
Digital LED Display: Clearly shows the remaining battery percentage.
Comprehensive Safety Protections: Built-in smart identifying chip system offers over-heat, over-current, over-discharge, over-voltage, short-circuit, and over-charge protection.
Wide Compatibility: Supports a broad range of 3C digital electronic products, including mobile phones, tablets, laptops, smartwatches, and earbuds.
2. Setup Guide
2.1 What's in the Box
JUOVI J2651 Portable Charger
USB-C to USB-C Charging Cable
User Manual
2.2 Initial Charging of the Power Bank
Before first use, fully charge your JUOVI J2651 Portable Charger. This ensures optimal battery performance and longevity.
Connect the provided USB-C to USB-C cable to one of the power bank's USB-C ports (C1 IN/OUT or C2 IN/OUT).
Plug the other end of the USB-C cable into a compatible USB wall charger (not included). For fastest charging, use a 35W or higher PD-compatible wall charger.
The LED display on the power bank will show the charging progress. It will indicate "100%" when fully charged.
A full recharge of the power bank typically takes approximately 2 hours with a 35W input.
Image: The JUOVI J2651 Power Bank connected to a wall adapter for recharging, demonstrating its bidirectional charging capability.
3. Operating Instructions
3.1 Charging Your Devices
The JUOVI J2651 Portable Charger can charge up to four devices simultaneously using its various output ports.
Turn On: Press the power button once to activate the power bank and view the battery percentage on the LED display.
Connect Device: Use an appropriate charging cable (USB-C to USB-C, USB-A to USB-C, USB-A to Lightning, etc.) to connect your device to one of the power bank's output ports (USB1:OUT, USB2:OUT, C1:IN/OUT, or C2:IN/OUT).
Charging Begins: Your device should begin charging automatically. The power bank's intelligent chip will detect the optimal charging speed for your connected device.
Simultaneous Charging: You can connect up to four devices at once. The power bank will distribute power efficiently.
Image: Close-up of the power bank's ports, highlighting the two USB-C (IN/OUT) and two USB-A (OUT) ports.
Image: Visual representation of the 35W fast charging capability compared to standard 20W charging for various devices.
3.2 Low Current (Trickle Charging) Mode
This mode is specifically designed for charging low-power devices such as Bluetooth earbuds, smartwatches, and fitness trackers, protecting their batteries from overcurrent damage.
Enter Trickle Charging Mode: Double-click the power button. The LED indicator on the display will start cycling to confirm activation.
Connect Device: Plug your low-current device into any of the power bank's output ports.
Exit Trickle Charging Mode: Double-click the power button again. The cycling LED indicator will switch back to the normal power display.
Image: The straightforward LED display indicating the battery percentage, which will show a cycling animation in trickle charge mode.
3.3 Power Bank Display
The integrated LED display provides clear information about the power bank's status:
Battery Percentage: Shows the remaining charge level of the power bank (e.g., "100%").
Charging Indicator: During charging, the percentage will increase. When fully charged, it will display "100%".
Trickle Charge Mode Indicator: A cycling LED animation indicates that the low current mode is active.
4. Maintenance and Care
Store the power bank in a cool, dry place away from direct sunlight and extreme temperatures.
Avoid dropping or subjecting the power bank to strong impacts.
Do not expose the product to water or moisture.
Clean the exterior with a soft, dry cloth. Do not use harsh chemicals or abrasive materials.
To maintain battery health, fully charge and discharge the power bank at least once every three months if not in regular use.
Do not attempt to disassemble, repair, or modify the power bank yourself. This will void the warranty and may cause damage or injury.
5. Troubleshooting
5.1 Device Not Charging
Check Power Bank Charge: Ensure the power bank itself has sufficient charge (check the LED display).
Verify Cable Connection: Make sure the charging cable is securely connected to both the power bank and your device.
Try Different Cable/Port: Test with a different charging cable or another port on the power bank to rule out a faulty cable or port.
Restart Power Bank: Press and hold the power button for a few seconds to turn off the power bank, then press it once to turn it back on.
Device Compatibility: Ensure your device is compatible with the power bank's output specifications.
5.2 Slow Charging
Cable Quality: Use high-quality, fast-charging compatible cables. Low-quality cables can restrict charging speed.
Device Input: Ensure your device supports fast charging protocols (PD or QC) to utilize the power bank's full 35W output.
Multiple Devices: Charging multiple devices simultaneously may distribute the total output, leading to slower charging for individual devices.
Trickle Charge Mode: If charging a larger device slowly, ensure you are not accidentally in Low Current (Trickle Charging) Mode. Double-click the power button to exit this mode if active.
5.3 Power Bank Not Recharging
Check Wall Adapter: Ensure your wall adapter is functioning correctly and provides sufficient power (preferably 35W or higher PD compatible).
Verify Cable Connection: Make sure the USB-C charging cable is firmly connected to both the wall adapter and the power bank's USB-C input port.
Try Different Cable/Adapter: Test with another USB-C cable and/or a different wall adapter.
Auto Shut-Off, Digital Display, Fast Charging, Over Charging Protection, Short Circuit Protection, Over-heat Protection, Over-current Protection, Over-discharge Protection
7. Warranty and Support
JUOVI products come with a standard manufacturer's warranty. Please refer to the product packaging or the official JUOVI website for the most up-to-date warranty information and terms.
For technical support, troubleshooting assistance, or warranty claims, please contact JUOVI customer service through the following channels:
Phone: [Insert Manufacturer Support Phone Number Here]
Please have your model number (J2651) and purchase date ready when contacting support.
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