I bought in Player. Ru Xiaomi 70mai Jump starter max. Liked this item very much. The car was 3 months, 2 liter Lexus, the battery was dropped to zero. I connected no bulbs, nothing is on, the car does not react, I pressed the boost and the alarm immediately went off. I tried to start the car, but it did not work the first time, because the boost turned off after a while, and the on-board computer did not have time to boot. The car was dead again. At 3 times, apparently the battery took a charge,See full review