Pity about the useful and beautiful device

Only 4 days ago I had my battery with a good Cetek loaders "brimming" geladen.Allerdings she has after a deep discharge in the summer quite a crack weg.Vorsichtshalber I ordered this tester at amazon.

After the severe frost in the last few days and because the car was not used at this time
showed the device a voltage just below 12 V and the an.Das symbol "poor condition and load before use" I really did not expect after a short time and then the machine will have paid for.

A normal voltmeter does even but who has already constantly in Auto.Zudem would have to interpret the display accordingly.

On the Internet, the following information found for charging status

At 20 Celsius and a 24-hour rest period, battery

100% from 12.78 to 12.84 volts

80% 12.54 to 12.66 volts

60% 12.25 to 12.48 volts

40% 12.12 to 12.24 volts

20% 11.82 to 12.00 volts

Unfortunately, I have also forgotten the next week and the list does not dabei.Insofern makes this unit a lot of sense.

The battery tester looks quite good and the display is illuminated.

My first thought was to lassen.Leider permanently connected to the cigarette lighter is the connecting cable as short, stiff and stupid so connected to the device that I have had trouble in the parking lot to lay it provisionally read.

Thus, only the following possible.

Take the unit out of the glove box and connect it to the cigarette lighter.

Read battery status

Start the engine, read device back into the glove compartment.

Pity about the visually beautiful device