Getting familiar with my Gardena 18V charger was actualy rather easy. The codes themselves are relatively simple to understand and there is no guesswork as to the status of the battery when I plug it in.
The blinking green light indicate that the battery is in a charging process and drawing power from the outlet. This is the most common light signal that you will see from the battery docks.
After the battery is fully charge, the blinking signal will change to a solid green light which indicate that the battery is ready for you to utilize in the gardening tool of your choosing.
Interpreting green lights
Here is where it gets more interesting. A solid green light dont always mean that the battery is fully charged. If the battery is too hot or too cold for the device to allow it to charge, the solid green light will come up instead of the blinking light. The difference is with the timing of when the solid green come up. If the battery is too hot or too cold, the solid green light comes up right away after placing the battery into the dock. Otherwise after the battery is fully charge, the solid green will come up after the charging process is complete.
That solid green light for both indications confuse me when I first got the battery dock. I figured that fully charged versus the temperature delay would of have different indications however Gardena chose to use the same signal. If the solid green comes up right away after placing the battery into the dock, that is an indication that the battery is too hot or too cold to begin the charging process.
It isnt uncommon for the battery to be too hot or too cold when you place it into the battery dock. This is to ensure that the battery is not overheated or too cold to begin the charging process. Charging a battery that is too hot or too cold would damage the battery.
If there is no light signal when you place the battery into the battery dock, the battery are defective. Either the charger is defective or the battery is defective. There being no light signal indicate a failure in the communication between the two component. At this point, either a different battery or a different battery dock will need to be utilize.
The Gardena battery dock only utilize a few different signals for the battery status. Blinking green indicate that the battery is charging. Solid green indicates that the battery is either fully charge or the battery is too hot or too cold to begin charging. No light signal indicate a hardware failure. These are the only possibilities of the battery docks.
