The device was fully charged but couldn't start our little sports car. However, a normal start from another vehicle worked without any problems. Unfortunately, the return period has expired as long as we ever needed to start. Revain and the producer both said: very bad, so sad. Apparently we're stuck with this. Charges phones and such. It might work for a quick start in the future, but I wouldn't count on it, so I'm also leaving the regular connector cables in the car, just in case. .
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