The challenge for SIC-Design was to deliver a cart to an Orthodontistry practice requiring full mobility for a high powered PC - due to the graphics cards-, and dental equipment, which was reaching a load just exceeding 320W, whilst avoiding using heavy, bulky systems that were either short lived or highly expensive.
The ProDurance system was built in as the solution.
4 ProDurance blocks provide 800Wh capacity with a 3 year warranty to retain 80% capacity. 3 voltage matched DC/DC battery management PCBs were combined to feed high loads via a 400W Inverter. A medically approved (2xMOPP) 500W Power Supply supported charging and the digital LCD display provides graphics and percentage of State of charge and a remaining runtime in hour and minutes. See the picture below.