At last one of it creates what the advertising says ...

Experiment 1:
Charger for car with alleged 1.5A
Result 1:
Charge level much rapidly.

Experiment 2:
Power Bank with 10000mAh with allegedly 4.5A Output (charger from Experiment 1 connected to the Power Bank to gain some time)
Result 2:
Charge status of the Power Bank held 2 days ago, then the charging current was used up ...

Experiment 3:
This charger for 2.4A ...
Result 3:
Tablet keeps state of charge and we have all the other stuff can take out of the car again.

The tablet serves as a music database with visualization and thus the power consumption is relatively high. This means that the internal battery lasts about 5 hours drive and then is empty. Thus, we were about 3 1/2 months to ensure looking for a way to power and to provide operation without possible failure.

I can only say about the device itself, well it has this little operation LED, thus you can see if it works or not. I have rebuilt a few things in the car, because the ignition turned off, the sockets / cigarette no longer be supplied with power.
The size is perfect, because the small adapter disappears from a few millimeters in the cigarette lighter and can be taken out easily. The processing from the outside is solid and durable impression.

Conclusion:
- Manufacturer specifications votes 5 of 5
- Processing 5 of 5
- Fit 5 of 5