16.8V 19A 319.2W Desktop Battery Charger with PFC for 4S Lithium Li-ion Battery Packs | Guangdong QINX

Designed for 4-cell Lithium Li-ion battery packs, this 16.8V 19A desktop charger utilizes an advanced constant-current/constant-voltage (CC/CV) charging architecture to ensure smooth current regulation and accurate voltage control from the beginning of the charging cycle to full capacity. This charging strategy helps maximize battery performance while promoting long-term reliability.

Since the output power exceeds 300W, the charger integrates Active Power Factor Correction (PFC), which improves input power efficiency, minimizes harmonic distortion and enhances compatibility with commercial and industrial AC power systems. The universal 100–240VAC input supports worldwide operation, making it suitable for global equipment manufacturers and export-oriented battery solutions.

Guangdong QINX offers flexible customization services, including DC output cable length, connector selection, housing color, brand logo printing, customized labels, firmware options (where applicable) and retail packaging, enabling seamless integration into various battery-powered products.

Applications

• Autonomous inspection robots
• Portable industrial cleaning equipment
• Mobile surveillance platforms
• Battery-powered emergency rescue devices
• Professional broadcasting accessories
• Smart manufacturing terminals
• Automated material handling equipment
• Portable energy management systems

Connector Options

Connector choices include 5.5×2.1mm, 5.5×2.5mm, 6.5×4.4mm, GX16 and GX20 aviation connectors, XLR connectors, XT60, XT90, EC5, Anderson Powerpole, SB50, Molex, JST, M16 circular connectors and custom cable harnesses designed for specific equipment.

Safety Design

The charger incorporates over-voltage protection, over-current protection, overload protection, short-circuit protection and over-temperature protection. Its Active PFC circuit contributes to improved input efficiency, stable operation and dependable charging performance under high-power conditions.

Certifications

Available with UL, cUL, CE, FCC, RoHS, UKCA, PSE, SAA, CB and DOE Level VI certifications, supporting compliance with international safety, EMC and energy efficiency regulations.