Golisi Needle 4 Battery Charger is a smart, compact quad-slot charger designed for cylindrical lithium-ion cells. Offering intelligent USB charging and safety protections, it supports multiple battery sizes for vaping or general electronic use.

Key Features

4 Charging Slots — charge up to four batteries simultaneously
USB-Powered (5 V Input) — powered via USB A or compatible USB sources
Smart Charging with Auto Cut-Off — stops charging when batteries are full to avoid overcharge
Wide Compatibility — supports 18650, 21700, 26650, 20700, 18500, 18490, 18350, and similar cylinder cells
Safety Protections — features overcharge, short circuit, reverse polarity, and temperature protection
LED Indicators — shows charging status per slot for convenience

Specifications

Input: 5 V USB
Output per Slot: ~0.5 A (typical) in standard use
Supported Battery Formats: 18350, 18490, 18500, 18650, 20700, 21700, 26650, etc.
Auto Cut-Off Voltage: ~4.20 V
Operating Temperature Range: ~0 °C to 40 °C
Case Material: Fire-resistant ABS/PC blend

Wholesale & Retail Benefits

Essential Accessory — battery chargers are required for any cell-based device, ensuring steady demand
Compact & Shelf Friendly — small footprint optimises display and shipping
High Utility & Cross-use Appeal — useful not only for vape batteries but general cylindrical battery users
Replacement / Upgrade Market — many users upgrade from basic chargers, generating upsell opportunities

Usage & Care Tips

Always insert batteries fully and correctly; the smart circuitry will begin charging automatically
Avoid charging cells with damaged wraps or exposed terminals
Unplug when charging is complete; don’t leave in constant use overnight
Use a quality USB cable to prevent voltage drop or overheating
Keep charger ventilation clear — avoid covering it during use
Store the charger in a cool, dry place when not in use