Mine is the same. I’ve used mine maybe 8-10 times. Now it doesn’t come on. When I plug it in the power comes on and lights up the right side with 99. The left display is blank. When I unplug it, the power goes off and won’t turn back on until I plug it in again. This sounds like a very common problem. The company should provide new batteries to everyone for free. It’s a defective product! If this is happening to you, I encourage you to write the company and let them know. Very disappointed in this product!