Original 12V/24V Diesel Generator 3A Intelligent Battery Charger. Wide Input Voltage Range: Supports AC 100-240V nominal and 90-305V max input for global compatibility. High Efficiency Design: Switch power structure with efficiency exceeding 85% and low no-load consumption. Smart 2-Stage Charging: Uses constant current then constant voltage method to prevent overcharging and extend battery life. Comprehensive Protection: Features short-circuit and reverse connection protection for safe operation. Adjustable Output: Charging voltage and current can be regulated on-site using potentiometers. LED Status Indicators: Clear LED display for AC power and charging status monitoring. Robust Build Quality: Compact design with 100% visual and function inspection for finished products. Flexible Customization: Offers full, minor, and sample-based customization options for designs and specifications.