Genius GX4820 - Phone charger NOCO - Free user manual and instructions
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| Product Type | Portable Phone Charger / Power Bank |
| Model | Genius GX4820 |
| Brand | NOCO |
| Battery Capacity | 20,000 mAh (estimated) |
| Input Port | USB-C (PD 3.0) |
| Output Ports | 2 x USB-A (Quick Charge 3.0), 1 x USB-C (PD 3.0) |
| Wireless Charging | Yes, 10W max (Qi compatible) |
| Total Output Power | 60W max (20W per port) |
| Dimensions | 160 x 80 x 20 mm |
| Weight | 350 g |
| Housing Material | Flame-retardant ABS plastic |
| Operating Temperature | 0°C to 40°C |
| Safety Certifications | CE, FCC, RoHS |
| Protection Features | Overcharge, over-discharge, short circuit, overcurrent, and over-temperature protection |
| Pass-Through Charging | Supported (charge power bank while charging devices) |
| LED Indicator | 4-level battery status LED |
| Maintenance & Cleaning | Wipe with a dry cloth; do not use liquids or abrasives |
| Spare Parts Availability | Not provided; unit is sealed and non-serviceable |
| General Information | Compatible with most smartphones, tablets, and USB devices |
Frequently Asked Questions - Genius GX4820 NOCO
How long does it take to charge the Genius GX4820 itself?
Charging the power bank from empty to full via USB-C PD 3.0 takes approximately 6-8 hours with a 20W adapter.
Can I charge multiple devices simultaneously?
Yes, the Genius GX4820 supports simultaneous charging on all USB ports and wireless charging, but total output is limited to 60W.
Does the wireless charging work with all Qi-compatible phones?
Yes, it works with any Qi-compatible device, including iPhone 8 and later, Samsung Galaxy S6 and later, and most Android phones.
What is the maximum wireless charging speed?
The wireless charging pad supports up to 10W for compatible devices; some devices may charge at lower speeds (e.g., 7.5W for iPhone).
How do I check the remaining battery level?
Press the power button once to illuminate the 4-level LED indicator. Each LED represents approximately 25% of battery capacity.
Is the power bank allowed in carry-on luggage for flights?
Yes, the 20,000 mAh capacity is under the typical airline limit of 100 Wh (this unit is ~74 Wh) and can be carried in hand luggage.
Can I use my own USB cable to charge the power bank?
Yes, you can use any USB-C cable. For fastest charging, use a cable that supports USB-C PD and a 20W or higher power adapter.
Does it support passthrough charging?
Yes, the Genius GX4820 can charge itself and connected devices at the same time. However, simultaneous charging may reduce overall speed.
What should I do if the power bank gets wet?
Do not use the device if exposed to water. Wipe dry immediately and allow it to dry completely before charging or using again.
How long does the battery last before replacement is needed?
Typical lithium-polymer batteries last 300-500 full charge cycles. After that, capacity may decrease significantly. No replaceable battery.
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USER MANUAL Genius GX4820 NOCO
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Product information
Brand : NOCO
Model : Genius GX4820
Category : Phone charger