Specification
Model: V4 Smart Charger Controller
Input Voltage: 12V to 18V DC
Output Battery Voltage: 12V Lead Acid / Lithium Custom
Relay Rating: Dual Relay, 10A 250VAC (Tianhui TH-T73)
Charging Mode: Auto Cut-Off System
Cut-Off Voltage: Adjustable via onboard settings
Re-Connect Voltage: Adjustable (Low to High)
Display Support: OLED Display Included (0.96 inch)
Indicator LEDs: 25%, 50%, 75%, 90%, Full
Protection Features: Overcharge, Reverse Polarity, Load Auto Cut
Terminals: B+ B- for battery, B+ out B- out for load
Board Size: Approx. 100mm × 70mm
Weight: Approx. 80g
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Description
The V4 Auto Cut Battery Charger Controller is a smart charging module designed for 12V lead-acid and lithium battery packs. It includes dual 10A relays, LED indicators, and support for an external OLED display. The controller features adjustable cut-off and reconnect voltages, automatic load control, and full protection against overcharging and reverse polarity. Ideal for custom UPS systems, battery charging stations, and automation projects requiring safe and intelligent charging.
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Application
12V lead-acid charger
Lithium battery charging system
Solar charge controller projects
UPS and backup power systems
DIY automation and control circuits