Raspberry Pi UPS Battery Power Supply Expansion Board Battery Power Metering MAX17040G Chip 5V Output for Raspberry Pi 4

Specification Compatibility for Raspberry Pi 4B 3B and 3B Battery Type Powered by two standard length 18650 lithium ion batteries not included Charging Current Maximum 1A at 5V Output Current Maximum 3A at 5V when using two 3300mAh 18650 lithium ion batteries or an external power adapter with a power rating greater than 5V3A Battery Metering Accurate battery percentage output and voltage measurement with an error margin of ±2 for battery percentage and ±3mV for voltage Features 1 Seamless Power Supply The Raspberry Pi UPS Battery Power Supply Expansion Board named UPS 18650 Lite is designed for Raspberry Pi and provides uninterrupted power It connects to the Raspberry Pi board through flexible top pins ensuring easy installation and stable connections 2 Dual Power Sources This expansion board utilizes two standard 18650 lithium ion batteries for power supply It also supports external power source detect and can seamlessly switch between external power and battery power without disrupting the Raspberry Pi s operation 3 Battery Monitoring Equipped with the MAX17040G chip this board enables precise measurement of battery voltage and remaining battery capacity allowing you to monitor the health of your power source 4 High Output Capability With a maximum output current of 3A at 5V this expansion board can handle demanding power requirements making it suitable for various Raspberry Pi projects and accessories 5 Wide Compatibility Compatible with Ras