16.8V 0.5A 8.4W Desktop Battery Charger for 4S Lithium Li-ion Battery Packs | Guangdong QINX

Designed for 4-cell Lithium Li-ion battery packs, this 16.8V 0.5A desktop charger utilizes a precision constant-current/constant-voltage (CC/CV) charging method to ensure controlled charging from beginning to full capacity. Stable voltage regulation and accurate current output help protect battery cells while promoting reliable charging performance and extended battery service life.

The charger supports a universal 100-240VAC input, enabling convenient use in global markets. Guangdong QINX offers flexible OEM and ODM services, including customized output cables, DC connector types, private labeling, enclosure color options and retail packaging to satisfy different product integration requirements.

Its low 0.5A charging current is particularly suitable for small-capacity lithium battery packs where gradual charging helps improve battery longevity and operational stability.

Applications

• Bluetooth speakers
• Portable LED lighting products
• Wireless monitoring sensors
• Handheld barcode scanners
• Smart home controllers
• Portable medical accessories
• Compact testing instruments
• Battery-powered IoT devices

Connector Options

Optional connector types include 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, SM connectors, DC5525, DC35135 and customized cable assemblies.

Safety Design

Designed with multiple protection features including over-voltage protection, over-current protection, short-circuit protection and over-temperature protection, providing safe and stable charging for sensitive electronic devices.

Certifications

Available with UL, cUL, CE, FCC, RoHS, UKCA, PSE, SAA, CB and DOE Level VI certifications according to customer project requirements.