I purchased a used E30, worked so great. It was like new on the inside, just wasn't used much. I've owned it for about two months, no issues. A better died, I replaced it. The other battery died, I replaced that. i didn't know that I should have changed both batteries out.

The problem I am having is this: I will be moving the jack around , the brakes all off a sudden come on. I can move the forks up and down, but the unit does not for in any direction. I have to press the emergency off button, the pull it out. I then will have a functioning jack again, until it happens again. It could be 5 seconds later, or a minute.