MPPT Solar Charge Controller Board 1Pcs 5V 2.1A USB Output for DIY Solar Projects Outdoor Camping Phone Charging

Description: This 3.7V 18650 ternary lithium battery solar charging management module features multi-input compatibility and 5V/2.1A USB output, perfectly meeting your DIY electronic projects and off-grid power supply needs. Key Highlights: 1. Versatile Multi-Input Support: Made of high-performance PCB with flame-retardant plastic insulating coating, it supports 5-18V 10-30W solar panels, DC5.5*2.1 port and Type-C input (only one port can be connected at the same time), so you can choose the most accessible power source for different usage scenarios. 2. Full Circuit Protection: Built-in anti-reverse connection and anti-backflow electronic components, plus fully insulated plastic protection for all interfaces, effectively avoids short circuits or component damage caused by incorrect wiring, greatly improving the safety and service life of the module and connected devices. 3. Stable Fast USB Output: Equipped with high-precision voltage stabilizing capacitor set and wear-resistant plastic USB port insulation shell, it delivers stable 5V/2.1A output, satisfying the fast charging demands of most smartphones, portable digital devices and small electronic appliances. 4. Real-Time Power Indication: 4-segment LED power display module with light-transmitting plastic cover clearly shows remaining battery level at a glance, allowing you to check power status intuitively without extra testing tools. 5. Compact Durable Build: Rigid printed circuit board with scratch-resistant plastic edge protection, only 70mm*34mm in size and lightweight, fits perfectly into small DIY power projects, outdoor solar power systems and portable power bank assembly. Specifications: Category: Solar Battery Charging Controller Module Material: Flame-retardant plastic, printed circuit board (PCB), electronic components Size: 70mm * 34mm Color: Green main board, blue terminal blocks, silver/black interface components (as shown in the picture) Application: 3.7V ternary lithium 18650 battery charging, DIY portable power bank, small off-grid solar power system, outdoor power supply projects Package: 1 piece Notes: 1. Product images are not presented in actual size, please refer to the description for exact size details. 2. Please allow 1-2mm deviation due to manual measurement, thanks for your understanding. 3. Actual color may slightly differ from the image due to different monitor settings. The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.