This battery pack from FireBoard is rechargeable via USB-C/Micro USB. USB Power Delivery enabled, which allows higher voltage output to FireBoard2 devices.
The battery pack will keep the battery charged (or recharge the battery) while simultaneously providing power to support Fan Drive.
• FireBoard 2, FireBoard 2 Drive, FireBoard 2 Pro – supports 100% fan speed via USB-C
• FireBoard (Gen 1) – support approx. 40% – 50% fan speed via Micro USB