direct fan replacement for Battery Charger (OPUS BT-C3100)
OPUS Cooler Battery Charger Fan Replacement for Opus BT-C3100
rated 12 V
current 0.07A works fine if you are replacing 0.4
12V 2Pin 25mm 7mm 2507 1" 5 Blades Mini Small DC Brushless Cooling Fan
fan thickness is 7mm