USB DC 5V to 8.4V Step Up Cable for Rechargeable Batteries, USB to 8.4V 2 Port Charging Cable Step Up Voltage Converter with DC Jack 3.5x1.35mm

This USB DC 5V to 8.4V Step Up Cable is used to charge rechargeable batteries that require a higher voltage than standard USB ports provide.

Yes, it works with most standard USB Type-A ports on computers or chargers.

It has 2 charging ports, allowing you to charge two devices simultaneously.

The output voltage is 8.4V, which is suitable for charging batteries that require a higher voltage than what USB Type-A can provide.

Yes, it is designed safely to step up the voltage and charge rechargeable batteries without causing damage.

It should be used with batteries that require 8.4V for charging; check your battery specifications before using.

While it is designed to work with most standard USB ports, compatibility may vary depending on the device’s power requirements and specifications.

The cable has a black color.

Since there are no specific claims about durability in the facts provided, its lifespan will depend on how often it is used and how well it is maintained.

No, this cable is specifically designed for charging rechargeable batteries. It does not have the necessary specifications to charge phones or tablets directly from a standard USB port.