16.8V 3.5A 58.8W Desktop Battery Charger for 4S Lithium Li-ion Battery Packs | Guangdong QINX

Developed specifically for 4-cell Lithium Li-ion battery packs, this 16.8V 3.5A desktop charger utilizes an advanced constant-current/constant-voltage (CC/CV) charging technique to maintain stable voltage and precisely regulated current throughout the charging cycle. This charging method helps improve battery efficiency, supports longer cycle life and ensures dependable charging performance in daily operation.

The charger accepts a universal AC input of 100-240VAC, making it suitable for international applications and export-oriented products. Guangdong QINX offers flexible customization services, including output cable length, DC plug configurations, enclosure design, customized logos, product labels and packaging solutions, allowing seamless integration into a wide variety of electronic devices.

With a 3.5A charging current, this charger provides faster charging for medium-capacity Lithium Li-ion battery packs while maintaining balanced charging performance and battery protection.

Applications

• Portable video inspection systems
• Smart biometric terminals
• Rechargeable wireless audio equipment
• Handheld industrial controllers
• Mobile diagnostic instruments
• Electronic access management devices
• Battery-powered surveying tools
• Intelligent IoT gateways

Connector Options

A broad range of DC connector options is available, including 5.5×2.1mm, 5.5×2.5mm, 3.5×1.35mm, 4.0×1.7mm, 4.8×1.7mm, USB Type-C (charging only), JST connectors, Molex connectors, XT30 connectors, DC7909 connectors, magnetic charging connectors, Hirose connectors and customized cable assemblies.

Safety Design

Built with multiple safety protections, including over-voltage protection, over-current protection, overload protection, short-circuit protection and over-temperature protection, ensuring secure and reliable charging under continuous operating conditions.

Certifications

Available with UL, cUL, CE, FCC, RoHS, UKCA, PSE, SAA, CB and DOE Level VI certifications to meet international safety and energy efficiency standards.