Рет қаралды 859
12v dc emargency fan.
Materials:
1. 3 old Laptop battery.
2. 1 12v dc motor.
3. 1 Fan
4. 1 charging point
Description:
from a reject battery of a laptop you can get 6 Li-ion battery from which you will get 4 or 5 good condition battery by using this you can make a dc emagency fan.