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Shenzhen Ryder Electronics Co., Ltd. is one of the leading manufacturers and suppliers of e-bike charger 42v 3a in China. Welcome to buy CE approved batteries in stock here and get free sample from our factory. All customized products are with high quality and low price.

Product Overview

The 42V 3A Li-ion Smart Charger is a high-performance desktop charger designed for 10-cell lithium-ion battery packs with capacities ranging from 6Ah to 22Ah. Manufactured to meet global standards, this charger ensures safe, efficient, and reliable charging for a variety of applications, including power tools, electric vehicles, and industrial equipment.

Key Features

Wide Input Voltage Range

AC 100-240V, 50/60Hz, suitable for global use.

Four-Stage Charging Mode

Pulse wake-up, pre-charge, constant current, and constant voltage charging for optimal battery health.

Advanced Protection

Includes short circuit, over-voltage, reverse polarity, and over-temperature protection.

LED Indicators

Dual-color LED displays real-time charging status.

High Efficiency

Conversion efficiency of over 88%, ensuring energy-saving operation.

Compact Design

Dimensions of 165.3mm x 82.3mm x 47.6mm, lightweight at approximately 560g (excluding AC cable).

Technical Specifications

Input Characteristics:

Input Voltage Range: 90V-264V AC, 47Hz-63Hz
Rated Input Current: ≤2.5A
Standby Power Consumption: ≤1.5W
Inrush Current: ≤60A (cold start)
Start-up Time: ≤3 seconds

Output Characteristics:

Charging Saturation Voltage: 41.8V ±0.3V
Rated Charging Current: 3.0A ±0.3A (constant current)
Pre-charge Current: ≤0.5A ±0.1A (for low voltage batteries)
Cut-off Current: ≤300mA (full charge)
Maximum Output Power: 126W

Protection Features:

Short Circuit Protection: Auto-recovery after fault removal.
Over-Temperature Protection: Auto-recovery after cooling.
Reverse Polarity Protection: Auto-recovery after correction.
Over-Voltage Protection: Requires AC reset after fault removal.

Charging Modes & LED Indicators:

Standby: Green LED on, Red LED off.
Battery Wake-up: Green LED flashes at 10%, Red LED flashes at 50%.
Pre-charge: Green LED flashes at 20%, Red LED off.
Constant Current Charging: Green LED flashes at 50%, Red LED off.
Constant Voltage Charging: Green LED flashes at 80%, Red LED off.
Full Charge: Green LED on, Red LED off.
Charge Error (OTP, OVP, SCP, RCP): Green LED off, Red LED flashes at 50%.

Environmental Specifications:

Operating Temperature: 0°C to +40°C
Operating Humidity: 5% to 90% RH
Storage Temperature: -20°C to +85°C (with packaging)
Operating Altitude: ≤5000 meters

Reliability & Durability:

High-Temperature Test: 65°C ±2°C for 5 hours.
Low-Temperature Test: -20°C ±3°C for 8 hours.
Constant Humidity Test: 40°C ±2°C, 90%-95% RH for 48 hours.
Vibration Test: 10-55Hz, 0.35mm amplitude, 10 cycles per direction.
Drop Test: 1-meter height, 6 surfaces, 1 drop per direction.

Safety & Compliance:

Insulation Resistance: ≥50MΩ at 500VDC.
Leakage Current: ≤0.25mA at 240VAC.
Compliance: Meets MIL-STD-105E sampling standards.

Packaging & Accessories:

Packaging: TBD (customizable based on customer requirements).
Accessories: AC input cable (not included in weight).

Usage Instructions:

Do not charge in environments exceeding 40°C. Optimal charging temperature is below 35°C.
Keep away from heat sources and flammable materials.
Avoid exposure to acids, alkalis, and corrosive substances.
Do not immerse in water or expose to rain.
Do not disassemble the charger or battery.
Keep out of reach of children.

Why Choose Our Smart Charger?

Global Compatibility

Works with 100-240V AC input, suitable for worldwide use.

Advanced Safety Features

Multiple protection mechanisms ensure safe operation.

Efficient Charging

Four-stage charging process maximizes battery life and performance.

Compact & Lightweight

Easy to transport and store, ideal for both industrial and personal use.

Why choose Us

Customer-Centric Approach:

Customizable packaging and battery configurations to meet specific client needs. Dedicated technical support for installation, maintenance, and troubleshooting.

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Meta Description

Discover the 42V 3A Li-ion Smart Charger by Ryder Electronics. Featuring four-stage charging, advanced safety protections, and global compatibility. Ideal for electric vehicles, power tools, and industrial applications. Order now!