Safety bag for various batteries

Lithium-ion batteries are widely used today in electrical devices (smartphones, cordless screwdrivers, drones, etc.). Lithium batteries are very popular, and not just because of their high energy density. They are space-saving, lightweight, provide a lot of power (high efficiency of 90-97%), have a low self-discharge rate (< 0.04%/day) and offer high amperages (can provide a lot of energy). Overall, lithium-ion batteries are a very safe technology and largely safe when used properly.

Nevertheless, the following rules should be observed when handling lithium-ion batteries:

• Do not charge visibly damaged batteries (deformation, scorch marks, odor, heating, discoloration), but dispose of them properly
• Charge batteries in a dry state at room temperature
• Take care when charging for the first time if the battery has not been used for some time (e.g. winter break)
• At low temperatures (e.g. winter) do not store batteries in unheated places (e.g. garage)
• Always keep batteries away from hot surfaces
• Do not modify or change the battery itself
• Charge batteries on a non-flammable surface (battery bags or metal boxes are helpful)
• Do not extinguish with water if the battery catches fire – smother the fire instead
• Do not dispose of batteries in residual waste, but hand them in at waste collection points

However, lithium batteries can quickly become dangerous if used or handled incorrectly. If an individual cell decomposes or overheats due to heat or mechanical damage, very high temperatures are generated in the cell. The result: the cell blows its contents outwards under excess pressure – causing a fire or the escaping smoke causes a flash fire.

A good way to reduce the risk of fire or damage caused by lithium-ion batteries is to use battery safety bags. The inside of this battery bag is made of fireproof material (glass fiber). A tight closure also reduces the risk of fire. The use of the safety bag is recommended when storing, charging and transporting lithium-ion batteries. Due to the generous dimensions of the bag, not only e-bike batteries, but also smartphones, tablets, loose batteries and much more can be safely stored in it.