DeWalt has a line of 36 V cordless tools powered by 36 V lithium‐ion batteries (e.g., model DC9360) designed for higher power and longer runtime than typical 18 V cordless tools. These were more common in past years and targeted heavier‐duty use cases.
However:
The 36 V line is older and has mostly been replaced in many markets by newer platforms (like 20 V MAX and FLEXVOLT).
New 36 V batteries and tools can be hard to find from official DeWalt today — most listings you’ll see locally are tool sets or second‐hand / old stock.