USB 5V to 8.4V Step-Up Charging Cable for Lithium Batteries

USB step-up converter cable designed to boost 5V USB power to 8.4V for charging lithium battery packs and powering electronic devices. Built with an integrated DC-DC boost converter for stable voltage output and reliable operation.

Suitable for 18650 lithium battery charging, DIY electronics, robotics, LED equipment, portable devices, and battery pack projects. The cable works from USB adapters, laptops, power banks, and car USB chargers.

Available with multiple DC connector sizes:

• 5.5 × 2.1 mm

Compact and easy to use for portable power applications.

Specifications:

• Input voltage: 5V USB
• Output voltage: 8.4V
• Output current: approx. 0.5–0.7A
• Type: DC-DC step-up converter cable
• Application: lithium battery charging

Advantages:

• Converts 5V to 8.4V
• Suitable for 18650 battery packs
• Works from power banks
• Compact portable design
• Multiple DC plug options