Precisely because you often have different personnel, the risk of a battery fire is all the greater, because you don’t know exactly how your employees treat your delivery bicycles and scooters.
The battery is the most delicate part. If the bicycle or scooter falls over, the battery can be damaged internally and however minor you might think that damage is, it can be enough to cause your battery to catch fire or explode while charging. If you just connect your bicycle batteries to a charger in your shop without taking precautions, you’re taking a huge risk.
You can see in the video here how a branch of Domino’s Pizzas was completely destroyed by an electric scooter that caught fire.