The battery ran out overnight. When connected, the green light blinked as a sign of too low voltage. In boost mode, the car came to life, but could not start. Started up only by lighting from another car with a pre-charge for about 5 minutes. This device apparently helps only with a small discharge. With a deep discharge is useless.
Included some photos to show the product's packaging and presentation.
Charger Vympel 57 black
110 Review
CARKU Pro-10 black/red
91 Review
MEGAWISE Car Battery Jump Starter - 1500A Peak 16800MAh Portable Power Pack For Up To 7L Gas Or 5L Diesel Engines, Dual USB Outputs, Auto Battery Booster [2021 Upgraded Model]
23 Review
Efficient Charging With LST 7 Stages 5A Battery Charger - 3.3A 12V For Ultimate Performance
35 Review