This is a replacement case for BT-C3100 battery chargers.
this permist to have better cooling thanks to many openings and to add an extra 60mm fan with a voltage converter to tune the fan speed. this way you can choose your place between noisy and fresh and silent and warm setup.
Parts to buy are easily found on any retailer with keywords :
cover_BT-C3100_1.stl | 13.9MB |