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Blue MPPT Solar Controller 3.7V 4.2V 18650 Lithium Battery Charging 1A Charger Module with Soldering
The Blue MPPT Solar Controller 3.7V 4.2V 18650 Lithium Battery Charging 1A Charger Module with Soldering is a value-for-money battery charger module designed for everyday users. It features Input Voltage (V): DC 4.4V – 6V and Output Voltage: DC 4.2V.
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About This Product
The Blue MPPT Solar Controller 3.7V 4.2V 18650 Lithium Battery Charging 1A Charger Module with Soldering is a value-for-money battery charger module designed for everyday users. It delivers reliable performance at an accessible price.
Key Specifications
- Input Voltage (V): DC 4.4V – 6V — works with standard household power
- Output Voltage: DC 4.2V — works with standard household power
- LED Indicator: CR (Charging), OK (Full/CV Mode) —
- Charging method: MPPT + Constant Current / Constant Voltage (CC/CV) —
- Length (mm): 18
- Width (mm): 10.16
- Weight (g): 03
- Operating Voltage (V): 2.7~5.5 — works with standard household power
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The Blue MPPT Solar Controller 3.7V/4.2V 1A Charger Module is a compact and efficient charging solution designed for 18650 Li-ion, LiFePO4, and lithium titanate batteries. Built with MPPT functionality, it maximizes solar panel efficiency while delivering stable constant current/constant voltage charging. With automatic recharge, overvoltage protection, thermal regulation, and precharge support for deeply discharged batteries, this module ensures safe and reliable performance. It automatically adjusts charging current based on input power capacity, making it ideal for solar-powered systems and low-power DC supplies. Its lightweight and compact PCB design makes integration easy for DIY solar projects and embedded applications.
Features:
- MPPT function for higher solar charging efficiency
- Supports 3.7V / 4.2V lithium batteries
- 1A max charging/output current (adjustable via resistor)
- Automatic current adjustment based on input power
- Precharge support for deeply discharged batteries
- Constant current/constant voltage with thermal regulation
- Automatic recharge & C/10 termination
- Battery overvoltage protection with LED indicators
