2 Channel 18650 Battery Holder Protection Board

A compact battery holder board designed for two 18650 lithium-ion batteries. It provides charging, protection, and regulated power output for portable electronics projects. Features: Holds 2 × 18650 batteries Built-in charging circuit Overcharge protection Over-discharge protection Micro USB charging input Charge current: about 0.5A Input voltage: 5V–8V Up to 5V / 2A output Additional 3V / 1A output LED charging status indicator USB output with power switch Applications: Arduino projects ESP32 projects Raspberry Pi builds Portable electronics Robotics DIY power banks Battery-powered prototypes