Introduction
This manual provides essential information for the safe and efficient use of your PSOOO M16 50000mAh 65W Portable Power Bank. Please read these instructions carefully before operating the device.
Product Overview
The PSOOO M16 is a high-capacity portable power bank designed to charge a variety of electronic devices, including laptops, tablets, and smartphones. It features multiple output ports and a built-in LED flashlight for convenience.

Image: Front view of the PSOOO M16 Power Bank, highlighting its ports and indicators. It features two USB-A output ports (OUT1, OUT2), one Type-C port (TYPE-C IN/OUT), LED lights, a power button, and battery indicator lights.
Key Features:
- 65W Fast Charging: The Type-C output port supports up to 65W fast charging, suitable for laptops like MacBook, Dell, and Thinkpad. The two USB-A output ports support up to 22.5W fast charging.
- 50000mAh Capacity: Provides multiple charges for smartphones, tablets, and laptops, making it ideal for extended use during travel, camping, or emergencies.
- Multiple Ports: Equipped with two USB-A output ports and one Type-C input/output port, allowing simultaneous charging of up to three devices.
- Fast Recharging: The Type-C input port supports 65W input charging, significantly reducing the time required to fully recharge the power bank (adapter not included).
- Bright LED Lights: Integrated LED flashlight with three modes: bright light, low light, and SOS mode, useful for emergencies or outdoor activities.
Setup
Initial Charging:
Before first use, fully charge the power bank. Use the correct charging cable and a compatible adapter to prevent damage. The Type-C input port supports 65W fast charging for quicker replenishment.

Image: The PSOOO M16 Power Bank connected to a wall adapter via its Type-C port for recharging. A label indicates '6H Full charge with 65W PD adapter (Adapter not Included)'.
Connecting Devices:
Ensure your device's input voltage is compatible with the power bank's output voltage. Connect your device to an available output port (USB-A or Type-C) using a suitable cable.

Image: The PSOOO M16 Power Bank connected via a USB-C cable to a MacBook Pro 14" laptop, demonstrating 65W fast charging. The laptop screen shows '95% Charged' and a graphic indicates '30 Mins 50%' charge.
Operating Instructions
Power Button Function:
Press the power button once to display the remaining power status via the LED indicator lights. Each light represents approximately 25% of the power. A green light indicates fast charging when input or output is active.
Charging External Devices:
Connect your device to the appropriate output port. The power bank will automatically begin charging. After full charge, the power supply will automatically disconnect.

Image: The PSOOO M16 Power Bank connected to and simultaneously charging three devices: an iPhone, an iPad, and another smartphone, demonstrating its multi-device charging capability.
Operating the LED Flashlight:
Quickly press the power button twice to turn on the light mode. Click the power button again to enter the flashing mode. Double-click the power button to turn off the light.
Video: A user demonstrates the PSOOO M16 Power Bank, highlighting its 65W output and 50000mAh capacity. The video shows the power bank's ports, LED indicators, and the functionality of the built-in flashlight. It emphasizes its ability to charge laptops and other devices, and its long-lasting power.
Video: A brief demonstration of the PSOOO M16 Power Bank, showcasing its physical appearance, ports, and LED indicator lights. The video confirms its functionality and compact design.
Maintenance
Storage and Lifespan:
To prolong the lifespan of the power bank, fully charge and discharge it at least every 4 months. Store the device in a cool, dry place away from direct sunlight and high temperatures. Disconnect the charging cable when not in use for long-term storage.
Temperature Protection:
This product has built-in over-temperature protection. If the ambient temperature exceeds the normal use temperature, the product may temporarily stop output. Place the product in a normal temperature environment and short press the button to recover output.
Troubleshooting
- Device not charging: Ensure the power bank is fully charged. Verify that the charging cable and adapter are correct and undamaged. Confirm your device's input voltage is compatible.
- Power bank not charging: Ensure the input cable and adapter are functioning correctly.
- Over-temperature shutdown: If the power bank stops outputting due to high temperature, move it to a cooler environment and press the power button to resume operation.
- If leakage occurs: If any leakage phenomenon occurs during use, stop using it immediately.
- Hidden dangers: If you find the power bank has any hidden dangers or other problems, discontinue use immediately.
Specifications
| Feature | Detail |
|---|---|
| Model Number | M16 |
| Battery Capacity | 50000 Milliamp Hours (5 Lithium Polymer batteries included) |
| Product Dimensions | 5.51 x 2.72 x 1.65 inches |
| Item Weight | 1.46 pounds |
| Connector Type | USB Type C |
| Special Features | Fast Charging, Flashlight, LED Indicator Lights |
| Manufacturer | Shenzhen Wannengda Technology Co., Ltd. |
Safety Warnings
- Do not disassemble the shell of the product without permission to avoid battery cell damage or other dangers.
- Do not disassemble, crush, puncture, short the product, or put it into water, fire, or expose to over 60°C environment, to avoid fire hazards.
- Do not expose the product under the sun or place it close to heat and flammable places, or leave it in the car. High temperatures can cause strong sunlight to damage the product.
- Do not put any debris into the USB input/output ports to avoid short circuit or damage.
- This power bank cannot be taken on an airplane due to its large capacity.
- Keep this power bank out of the reach of children to avoid incorrect operation.
- Do not treat scrapped products as household waste; dispose of them according to local laws to avoid explosion and pollution.
Warranty and Support
For warranty information or technical support, please refer to the product packaging or contact PSOOO customer service. Keep your purchase receipt for any warranty claims.

