My Dogtra receiver and transmitter doesn't hold charge any more, what do I do? Tony February 10, 2017 19:08 Follow If your unit had passed more than 1 year and the Dogtra units no longer hold charge. Please refer to our battery guide to purchase the replacement battery for your Dogtra units. Related articles Are the Dogtra batteries user-replaceable? Comments 0 comments Please sign in to leave a comment.