Tesla's cash and cash equivalents fell to $1.69 billion as of Aug. 12, according to the records. That was largely because it repaid $500 million of a revolving credit line in July. Tesla plans to tap that same amount again later this quarter, according to the records. That, plus additional cash flow that Tesla anticipates from an increase in vehicle deliveries in the second half of the quarter, is expected to leave it with several hundred million dollars more in cash at the end of September compared with three months earlier, according to the records