Anker 347 PowerCore 40K – Massive Portable Power
Stay powered for days with the Anker 347 PowerCore 40K, one of the highest-capacity portable chargers designed for modern USB devices. With an enormous 40,000mAh battery, this power bank can recharge smartphones multiple times or provide backup power for tablets and laptops when you’re away from a wall outlet.
Built with 30W USB-C Power Delivery, the charger delivers high-speed charging to compatible devices such as smartphones, tablets, and select laptops. The power bank includes two USB-C ports and two USB-A ports, allowing up to four devices to charge simultaneously, making it ideal for travel, outdoor activities, or shared charging situations.
Anker’s MultiProtect safety system ensures reliable charging with protection against overheating, over-voltage, and short circuits. The device also includes a trickle-charging mode designed for smaller devices like wireless earbuds and Bluetooth accessories.
With its durable build and massive battery capacity, the Anker 347 PowerCore is a dependable portable power solution for long trips, remote work, emergencies, and everyday charging needs.
Key Features
🔋 Ultra-High 40,000mAh Capacity
Provides several days of portable power and multiple phone charges.
⚡ 30W USB-C Fast Charging
Supports high-speed charging for smartphones, tablets, and compatible laptops.
🔌 4-Port Charging System
Includes 2 USB-C and 2 USB-A ports to charge up to four devices simultaneously.
🎧 Trickle-Charging Mode
Optimized charging mode for low-power devices like earbuds and smartwatches.
🛡 Anker MultiProtect Safety System
Advanced safety features protect against overheating, over-charging, and short circuits.
📱 Universal Device Compatibility
Works with smartphones, tablets, earbuds, cameras, and many USB-powered devices.
Real-Life Benefits
Charge a smartphone multiple times without recharging the power bank
Power several devices simultaneously during travel
Reliable backup power during emergencies or power outages
Ideal for camping, flights, long trips, and remote work
Compatible with most modern USB-C and USB-A devices
Technical Specifications
| Specification | Details |
|---|---|
| Product | Anker 347 PowerCore 40K |
| Model | A1377 |
| Battery Capacity | 40,000mAh |
| Output Power | Up to 30W |
| Ports | 2 × USB-C, 2 × USB-A |
| USB-C Output | Up to 30W Power Delivery |
| USB-A Output | Up to 18W per port |
| Total Output | 5V ⎓ 6A |
| Input | USB-C PD up to 30W |
| Dimensions | 164.5 × 85.6 × 46.2 mm |
| Weight | ~905 g |
| Charging Technology | Power Delivery, PowerIQ |
| Safety | MultiProtect safety system |
Specifications may vary slightly depending on region or batch.
What’s Inside the Box
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Anker 347 PowerCore 40K Power Bank
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USB-A to USB-C Charging Cable (0.6 m)
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User Manual
Why Choose the Anker 347 PowerCore?
The Anker 347 PowerCore 40K is designed for users who need maximum portable power. Its huge capacity, multi-device charging capability, and fast USB-C output make it an excellent choice for travelers, professionals, and heavy device users. With trusted Anker build quality and safety technology, it delivers reliable power wherever you go.













