Portable External Battery

The Portable External Battery is a high-capacity 20000mAh power bank designed for reliable, everyday charging. It automatically detects connected devices and allows you to charge two electronics simultaneously, making it ideal for travel, work, and outdoor use. With advanced power management and multiple safety protections, it ensures stable and secure charging for your devices.

Its compact, palm-sized design combines durability with portability, while the 4 LED indicator lights clearly display remaining power so you’re never caught off guard.

Key Highlights

• 20000mAh High Capacity: Long-lasting power for phones and gadgets
• Dual Device Charging: Charge two devices at the same time
• Smart Identify Technology: Automatic device detection for efficient charging
• Enhanced Safety Protection: Guards against overcharge, overheating, short-circuit, and over-current
• 4 LED Power Indicators: Accurate battery level display
• Dual Input Ports: Micro USB + Type-C for flexible recharging
• Portable & Sturdy: Palm-size design with a professional look

Specifications

• Product Type: Mobile Power Bank
• Model: T3853
• Battery: 1 × 20000mAh / 3.7V Polymer Battery (74W)
• Input Voltage: 5V / 2.1A
• Dual Outputs: 5V / 2.1A & 5V / 1A
• Input Interfaces: Micro USB, Type-C
• Fully Charged Time: Approx. 5 hours
• Conversion Rate: 60%
• Working Temperature: -10°C to 40°C (14°F to 104°F)
• Materials: ABS + Aluminum Alloy
• Colors: Red, Black, Green
• Charging Cable Length: 30 cm / 11.8 in

Size & Weight

• Item Size: 13.6 × 6.5 × 1.6 cm (5.35 × 2.56 × 0.63 in)
• Item Weight: 204 g / 0.45 lb
• Package Size: 17 × 10.3 × 4.2 cm (6.69 × 4.05 × 1.65 in)
• Package Weight: 252 g / 0.56 lb

Friendly Reminder

• Do not drop or shake the power bank violently
• Do not immerse in water
• Keep the interface clean
• Slight heat during long use is normal
• Do not disassemble the product
• If indicator lights do not turn on, recharge immediately
• Unplug once fully charged to reduce power loss
• For first use, charge for 20 minutes before operating

Package List

• 1 × Mobile Power Bank
• 1 × Micro USB Charging Cable
• 1 × User Manual

A dependable, high-capacity charging companion built for performance, safety, and portability.