Jadoo Power NABII (http://rbi.ims.ca/4915-544). Professional users who count on the availability and continued usage of key electronic tools have a fuel cell option. The NABII power system attaches to an end product instead of the battery and never needs to be removed. Instead, N-Stor energy cartridges, with hydrogen absorbed in a metal hydride solid, plug into the NABII and are replaced and refilled when depleted. Jadoo Power engineers developed a patented, digital interface to provide accurate state-of-fill and other fuel management data from the cartridges. The interface uses a low-power microcontroller to continuously update the user with power status to avoid downtime.