The upshot was that Harrison had two batteries made to meet Delco needs. One was a twelve-cell weighing sixty-five pounds. When he showed it to Kettering he was told that it was too big. Harrison went back to Philadelphia and asked for lighter ones. By this time his employers were fed up with his enthusiasm for the self-starter and decided to wash their hands of the whole business. Then Harrison played his trump card. He told the head of his concern that if he did not fill the Delco order he would go over to its strongest competitor. This threat carried the day. With his own hands Harrison perfected a light battery that met Delco needs. Before long Harrison was devoting part of his time to Delco interests. Eventually he became a valued part of the organization. The battery problem was now solved but another difficulty arose. The new and lighter batteries had to be installed and this required time. Meanwhile time was slipping. Leland telegraphed that he was going to Bermuda on a vacation. If the electric self-starter was to go on the 1912 Cadillac, he must test it himself before he sailed. Only three more days remained before the deadline. [Illustration: To C. F. Kettering the automobile represented a constant challenge and a lifetime field of endeavor.] [Illustration: To prove the sturdy qualities of the self-starter, races were run in which the starter itself was the only motive power allowed.] When the completed self-starter seemed ready to be shipped to Detroit something went wrong. For two days and nights Kettering and the “Barn Gang” labored to find the source of the trouble. If the starter did not reach Detroit in forty-eight hours, all was lost. Still the trouble persisted. Finally, late in the afternoon, Kettering sent an S.O.S. to Chryst who was still at the NCR. When he arrived at the barn all he could see of human life was legs protruding from under Kettering’s car which was now the guinea pig. The gang was completely exhausted after the long ordeal of heat, toil, and trouble. “You fellows rest awhile,” said Chryst, “I will try to find out what is wrong.” Wearily Kettering and Anderson hauled themselves out from under the car and before Chryst could say another word fell fast asleep. Chryst took out the starter mechanism and found that two wires were wrongly connected. In their utter exhaustion Kettering and Anderson had not discovered it. Chryst fixed the wires in short order. The self-starter, now complete, went to Leland by express that night. Once on the 1912 Cadillac, every expectation was realized.