The fuse is also called a current fuse, and the IEC127 standard defines it as "fuse (Fuse-link)". It’s main function is overload protection. Place the use in the circuit in correct way, the fuse will cut off current at a certain height and heat to protect the circuit.
Here I list out some common fuse type use on lithium batteries:
1.Tubular fuse,it usually used on 24v/36v/48v/52v electric bike battery,anti self-resettable
2.Chip Fuse,the chip fuse with base first used on the cars, but now some customer would also used it on 36v/48v/52V/60V/72V lithium battery pack which is used for high power electric scooter,electric motorcycle,electric drifter,electric go cart..etc.,anti self-resettable.
3.PTC fuse,the PTC fuse is widely used on the 7.4v/12v/14.4V lithium battery pack which is used for small power electronic devices,self-resettable.
The fuse is a second protection for the circuit,as the lithium battery BMS would also have over current protection.
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