Silicognition CS-LIFEPO-05/06 LiFePO4wered/Pi Development Tools are high-performance battery power systems for the Raspberry Pi. These development tools can power a Raspberry Pi for up to 9 hours from the battery and can be left plugged in continuously. The 14500 and 18650 battery sizes come without a stackable header. This stackable header allows other boards to be attached and powered. These development tools operate at 0.75A and 2A continuous load current, both on battery or with external power. The CS-LIFEPO-05/06 tools feature continuous measurement of input voltage, battery voltage, output voltage, and load current with smart user-programmable thresholds.