A fused cover assembly for a battery system. The embodiments of the composition comprise combinations of sodium hyaluronate and chondroitin sulfate and exhibit an improved rheological profile. To deploy the fasteners, a staple-deploying member is advanced through the fastener cartridge to move the fasteners toward the anvil. In the method of the present invention, the customers are grouped into N groups, each group being assigned to a corresponding one of the server nodes.