12V/24V Battery Charger Controller Board 2018

The 2018 Battery Charger Controller Board is a compact and reliable PCB module designed for automatic 12V/24V lead-acid battery charging control. It features automatic charge cutoff when the battery is full and resumes charging when the battery drops to a low level.

Key Features:

• Supports 12V and 24V battery systems
• Automatic full-charge cutoff using relay
• Low battery detection and auto-restart
• Onboard charging (CHG) and full (FULL) indicator points
• Adjustable charge threshold via onboard trimmers (VR10K, VR220K)
• Uses C945 NPN transistor, IN4004 diode, and 5.6V/9V Zener diodes
• Compact PCB form factor — easy to integrate
• Components: relay, electrolytic capacitors (100µF/24V), resistors, IC socket

Specifications:

• Input Voltage: 12V / 24V DC
• Relay Output: COM, NO, NC
• Charge Detection: Zener-based voltage sensing
• Board Year: 2018

Ideal for solar charging systems, UPS backup circuits, and DIY battery management projects.