Any disadvantage in using a fuse?
Are there any disadvantages with using a fuse for the following electric go cart set up:
- 48V 1000 Watt Brushless Motor with rated current of 26.7 amps
- 48V charge controller
- 14S8P battery using Samsung INR18650-25R 2500 mAh 18650 cells (connected with spot welder using pure nickel strips)
I have read that a fuse is an inexpensive safety mechanism but I have not found many discussions about it on this forum. Thanks for any information that anyone can offer.
I have an electric scooter, which power device (the motor driver) is protected by a 100A fuse....
In general the protection is required to save driver / battery integrity; imagine that the drive fails, and power transistors gets shorted: the driver is an effective short circuit, which can damage the battery because of its continuous overload.
By adding a fuse, the short circuit happens only for less than 1 sec. the time required from the fuse to blow, and the battery is stressed for this short time, saving its life!
In my opinion no more fuses are required: usually battery chargers have they own fuse protection, and other devices (like lights, horn etc) have their own protection as well....