USB 3.7V 400mA Lithium Battery Charger Cable SM-2P Plug

USB Charger Cable 3 7V 400mA Lithium Battery SM-2P Forward Plug Qme Default Title

USB 3.7V 400mA Lithium Battery Charger Cable SM-2P Plug

$11.69

$11.69 $13.64

Keep your 3.7V lithium battery-powered devices charged and ready with this compact USB Charger Cable with SM-2P Forward Plug. Delivering a steady 400mA charge, it features an intelligent IC control circuit for constant-voltage, constant-current charging — so your battery charges efficiently every time.

Key Features

3.7V / 400mA Output: Optimized charging rate for small lithium batteries in RC toys, gadgets, and DIY electronics.
SM-2P Forward Plug: Standard 2-pin SM connector for a secure, reliable fit with compatible battery packs.
Intelligent IC Protection: Built-in IC control circuit manages constant voltage and current, helping to protect your battery during charging.
USB Powered: Plug into any USB port — laptop, power bank, or wall adapter — for convenient charging anywhere.
Durable Construction: Made from plastic and metal for lasting everyday use.
Approximately 60cm Cable Length: Flexible enough to charge comfortably at your workstation or on the go.

Specifications

Input: USB 5V
Output: 3.7V, 400mA
Connector Type: SM-2P (Forward Plug)
Cable Length: ~60cm
Material: Plastic + Metal
Compatible With: 3.7V lithium battery packs (RC toys, small electronics, DIY projects)

Perfect For

Whether you're charging batteries for RC toys, small DIY electronics, or hobby gadgets, this USB charger cable offers a straightforward, safe, and dependable solution. It also makes a handy spare or replacement cable to keep in your toolkit.

For general guidance on safe battery charging and handling, refer to the U.S. Consumer Product Safety Commission (CPSC) Battery Safety resources.

Frequently Asked Questions

Q: What devices is the USB 3.7V 400mA SM-2P Charger Cable compatible with?

A: This charger cable is designed for 3.7V lithium battery packs that use a standard SM-2P (2-pin) forward connector. Common uses include RC toy battery packs, small hobby electronics, and DIY lithium battery projects. Always verify your battery's voltage and connector type before use.

Q: How does the intelligent IC protection circuit work?

A: The built-in IC control circuit maintains a constant voltage and current output during charging. This helps prevent overcharging by regulating the charge delivery, keeping your lithium battery operating within safe parameters.

Q: What power source do I need to use this USB charger cable?

A: Simply plug the USB end into any standard USB 5V power source — such as a USB wall adapter, laptop USB port, or power bank — and connect the SM-2P plug to your compatible lithium battery. No special charger dock is required.