Abstract: A low resistance lithium battery set includes a chassis, and lithium batteries. A collector board is disposed in the chassis, which includes many insertion holes for connecting with the electrodes of lithium batteries. The electrodes of the batteries are penetrated through the insertion holes and then folded to connect with each other. The power output of the lithium batteries is then delivered through the contact points of the collector board. The output of the battery set is thus adjustable by changing the connection of battery electrodes. Therefore, the battery set can be used in a variety of electronic devices.