21V 19A 399W Desktop Battery Charger for 5S Lithium Li-ion Battery Packs with PFC | Guangdong QINX

Guangdong QINX manufactures this 21V 19A desktop charger as a high-power charging solution for rechargeable 5-cell Lithium-ion battery systems. Utilizing a precision charging algorithm, the charger helps optimize charging efficiency while supporting battery longevity and stable operation.

The built-in Active Power Factor Correction (PFC) circuit improves energy efficiency and enhances compatibility with international power grids. Combined with a wide 100-240VAC input range, the charger is suitable for worldwide deployment across commercial, industrial and professional electronic equipment.

This 399W charging model is particularly suitable for large-capacity battery packs that require reduced charging time and consistent power delivery. Custom options include output voltage adjustment, connector selection, cable length customization, housing color, logo printing, packaging design and private labeling services.

Applications

• Industrial robotic equipment
• Automated guided vehicles (AGV)
• Portable power stations
• Electric mobility devices
• Battery-powered testing systems
• Commercial cleaning equipment
• Smart logistics equipment
• Professional monitoring instruments

Connector Options

Various connector configurations can be supplied, including 5.5×2.5mm DC plug, 5.5×2.1mm DC plug, 4-pin XLR connector, GX aviation connector, Anderson connector, XT60 connector, XT90 connector, Molex connector, JST connector and customized cable assemblies according to customer specifications.

Safety Design

Engineered with multiple protection functions including over-voltage protection, over-current protection, short-circuit protection, overload protection and thermal protection to support dependable charging performance in demanding environments.

Certifications

Available with UL, cUL, CE, FCC, RoHS, UKCA, PSE, SAA, CB and DOE Level VI certifications depending on project requirements and destination markets.