The storage direction and posture of e-cigarette batteries (especially detachable cylindrical lithium batteries such as 18650 and 20700) directly affect their safety, lifespan and performance. The following is a systematic storage guide that combines battery characteristics with user needs to ensure safe storage and extend service life.
Avoid short circuit
Direct contact of the positive and negative terminals of a battery with metal objects such as keys and coins can cause a short circuit, leading to high temperatures, smoke, and even an explosion.
Prevent physical damage
Scratches, deformations or leakage of the battery casing may cause safety hazards.
Control environmental factors
Environmental factors such as temperature, humidity and static electricity may accelerate battery aging or cause danger.
Storage direction
Recommended direction:
Positive and negative electrode isolation: Ensure that the positive electrode (protruding end) and the negative electrode (flat end) of the battery do not come into contact with any conductive objects.
Independent storage: Place each battery in a dedicated battery box or insulating sleeve to prevent multiple batteries from coming into contact with each other.
Wrong direction:
Do not let the positive and negative terminals of the battery come into direct contact with metal surfaces (such as desktops, toolboxes).
It is prohibited to store batteries together with metal items such as keys and coins.
2. Storage posture
Recommended posture:
Vertical placement: Insert the battery vertically into the battery box or storage tube to reduce the force on the sides and prevent the casing from deforming.
Flat isolation: If it needs to be placed flat, an insulating pad (such as a silicone sleeve or plastic sheet) should be installed between the positive and negative terminals of the battery.
Incorrect posture:
Do not stack or squeeze batteries at will, as it may cause the casing to crack or internal short circuit.
It is strictly prohibited to store batteries upside down (with the negative terminal facing upwards). Although there is no direct risk, it does not conform to the conventional operating habits.
Use a dedicated battery box
Type:
Plastic battery case: Lightweight and insulating, suitable for daily carrying.
Silicone battery case: Soft and shockproof, suitable for protecting single batteries.
Metal battery box: It needs to be equipped with an insulating layer inside to avoid the risk of electrical conduction.
Control the storage environment
Temperature: 15℃ to 25℃ (Avoid high temperature accelerating aging and low temperature reducing activity).
Humidity: 40% - 60% (To prevent leakage or corrosion caused by moisture).
Avoid light: Ultraviolet rays may accelerate the aging of the battery casing. It is recommended to store it in a cool place.
Check the battery status regularly
Inspection items:
Check if the shell is bulging, scratched or leaking.
Whether the positive and negative electrodes are oxidized (white powder-like substances).
Handling method:
If problem batteries are found, stop using them immediately and recycle and dispose of them in accordance with local regulations.
Long-term storage at home
Recommended plan:
Put the battery in a plastic battery box and store it in a fire cabinet or drawer, keeping it away from flammable materials.
Avoid contact with children. It is recommended to use a locked storage box.
Travel carry
Recommended plan:
Use shockproof battery cases to avoid squeezing or collision.
Comply with aviation regulations (if carried on board, checked in is prohibited).
Recommended plan:
Use a waterproof battery case to prevent rainwater or sweat from seeping in.
Avoid exposing the battery to high or low temperatures (such as in a car in summer or on snow in winter).
Misunderstanding
Misconception 1: Believing that "the higher the battery capacity when stored, the better."
Analysis: Long-term full charge storage (such as 100% charge) will accelerate battery aging. It is recommended to store the battery at 40% to 60%.
Mistake 2: Wrapping the positive and negative terminals of the battery with tape.
Analysis: The tape may age and fall off, and it cannot completely prevent short circuits. It is recommended to use a dedicated battery box.
Precautions
Avoid mixed storage: Batteries of different brands, models or capacities must not be mixed to prevent overcharging or overdischarging.
Avoid static electricity: When operating batteries in a dry environment, it is recommended to touch metal objects first to release static electricity.
Avoid extreme temperatures: Do not store batteries in high-temperature environments (such as direct sunlight) or low-temperature environments (such as freezer in a refrigerator).
Core principle: Isolation of positive and negative electrodes + independent storage + environmental control. The combination of the three ensures the safe storage of batteries.
Best Practice:
Long-term storage: Charge 40% to 60% of the battery. Put it in a dedicated battery case and store it in a cool and dry place.
Travel carrying: Use shockproof battery cases to avoid squeezing and high temperatures.
Daily use: After each use, put it back in the battery box in time and avoid mixing it with metal items.
By using the above methods, the safety risks of batteries can be significantly reduced, their service life can be prolonged, and the safety and performance of e-cigarette devices can be ensured.