2A MPPT Solar Charging Board – Automatic Recharge Module

This MPPT Solar Charging Board efficiently transfers power from a solar panel or other solar energy source to a rechargeable battery.
Simple to use — just connect the solar panel on one side and the battery on the other to start charging instantly.
It features Maximum Power Point Tracking (MPPT) for optimal solar energy utilization and provides complete management for a single lithium battery.
Designed for stable performance, with the constant charging current adjustable via an external resistor. Supports trickle charging for deeply discharged batteries and includes an automatic charging function.

Specifications:

• Charging Current: 2A
• PWM Switching Frequency: 300KHz
• Constant Voltage: 4.2V ±1%