When the charger connection cables are securely mounted. For battery however is a splash-proof coupling, via which you can use this tail.
The comfort indicator is ideal for vehicles are the long term. One sees by permanently flashing the plug, what the charge level (empty, medium, full) is the battery. I take him by the motorbike to get the NOT SUSPENDED battery over the winter.
With a rectangular cut of the indicator can also be installed easily fix. Due to the (not bright arg) flashing but I would advise rather to an installation which is not in direct line of sight to be distracted. The power consumption of the LED is minimally.