Bought to replace an old Schumacher I had that died after years of service. It was very similar and had the parameters I needed. The problem is that it doesn't work. Slow charging, acceleration can not charge a dead battery even after more than 24 hours. Also a few days ago it was necessary to use the engine start function and nothing, nada. He called a neighbor, pulled out the connection cables, and the car started immediately. It's a real shame as this brand used to be trustworthy but not anymore.