For anyone with a hailong style battery pack, there is room to add a blade fuse into the baseplate of the battery. Safety first. It gets covered by the battery when fitted
Amazon.com: Combo Pack!! NEW Replacement 3673966J00 and MN164188 120Amp Battery Fuse Fuselink WITH Positive Battery Terminal MU001365 MK413790 : Automotive
1500W 60V 20Ah Electric Scooter Lithium Battery Pack with Spark Fuse prevention for citycoco|Electric Bicycle Battery| - AliExpress
How to fuse batteries connected in series? - Electrical Engineering Stack Exchange
Testing Battery Hookups fuses Ep 2 - YouTube
Turnigy T-Connector Parallel Charging Board w/Fuse for 6 x 2~6S Battery Packs (4mm Banana Plug Charger Connectors) | hobbyking