Review on Starting device booster EAFC 20000mAh 1200A Portable start-charger for the car. jump starter. powerbank. buster. by Bambang ᠌

Name: Starting device booster EAFC 20000mAh 1200A Portable start-charger for the car. jump starter. powerbank. buster.
Item: Starting device booster EAFC 20000mAh 1200A Portable start-charger for the car. jump starter. powerbank. buster.
Rating: 3

April 12, 2023

The purchase was not entirely successful, there were minor problems in use.

The device came fully charged in a cardboard box, there is no wardrobe trunk (case, bag, etc.) for storage (this is a minus).
What does the inscription on the box "50% efficiency when charging the phone" mean, I did not understand.
The case is made soundly, without cracks. Instruction in English.
Included are crocodiles, charging from the network and a "type C" cable (charging the device through it is a plus). There are two USB OUTPUTS 5V 2A on the device.
The compass is a joke from the manufacturer (if you don't start, there is a chance to get out on foot).
The flashlight shines and blinks (even red and blue, like a chandelier on traffic police cars). See photo.
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Cons

Inaccurate information in the product description: CAPACITY in fact is not 20,000 but 12,000 mAh. Therefore three stars. At first I wanted to return, then decided to leave. I bought it "just in case", so I can't "check it in action" yet.