Like you, I preferred the battery version, so I bought a smaller, less powerful, battery operated Waterpik. If you get the opportunity to read my review, you will see that it was completely ineffective and a waste of time. This tool is so powerful, I cannot see them offering a battery powered version because the additional cost would most likely raise it to another hundred dollars over the existing price. So I’m putting up with the cord in the bathroom because the results are phenomenal.