There is a bayonet inside to fix the battery to prevent the battery from rolling and to protect the battery.
There are also bayonet ports outside the box. Two or more battery boxes can be connected in series for easy carrying.
Environmental protection functions. The used battery can be stored in this box to prevent the battery from leaking.
Different types of batteries are distinguished by boxes of different colors.
This product is well designed and made of PP high temperature resistant material, which is safe and reliable.
Note: Hard Case only,batteries not included