What are the storage requirements for batteries when not in use?

The storage requirements for batteries depend on the specific type of battery technology being used. Here are some examples:

1. Lead-Acid Batteries: Lead-acid batteries are commonly used in automobiles, boats, and backup power systems. These batteries require a cool and dry storage environment to prevent degradation of the electrodes and to prevent leakage of the electrolyte. They should be stored in a charged state, and they should be recharged periodically to prevent sulfation, which can reduce their capacity.
2. Nickel-Cadmium Batteries: Nickel-cadmium batteries are used in a wide range of applications, including cordless phones, power tools, and medical devices. These batteries should be stored in a cool and dry environment and should be kept in a charged state. They are also susceptible to memory effect, which can reduce their capacity, so it is important to discharge and recharge them fully periodically.
3. Nickel-Metal Hydride Batteries: Nickel-metal hydride batteries are used in a range of applications, including hybrid cars, cordless phones, and digital cameras. These batteries should be stored in a cool and dry environment and should be kept in a charged state. Like nickel-cadmium batteries, they can also be susceptible to memory effect, so it is important to discharge and recharge them fully periodically.
4. Alkaline Batteries: Alkaline batteries are commonly used in household devices such as flashlights, remote controls, and toys. These batteries should be stored in a cool and dry environment and should be kept at a moderate temperature to prevent leakage. It is recommended to remove the batteries from devices that will not be used for a long time, and to store them separately in a cool and dry place.
5. To store a Li-ion battery, you should follow the below steps:

• Charge the battery to around 50% of its capacity before storing it. This helps to minimize the degradation that can occur over time.
• Store the battery in a cool, dry place. High temperatures can cause the battery to lose capacity and degrade faster. Ideally, the storage temperature should be between 0°C and 25°C.
• Avoid storing the battery in direct sunlight or in a place where it can be exposed to moisture.
• If you are storing the battery for an extended period of time, such as several months, it is a good idea to check the battery voltage periodically and recharge it to 50% capacity if necessary.
• Store the battery in a plastic bag or airtight container to protect it from moisture and dust.
• If possible, avoid storing the battery for long periods of time, as all batteries have a limited shelf life and will eventually lose capacity even if they are not being used.
• By following these guidelines, you can help to extend the lifespan of your Li-ion battery and ensure that it is ready to use when you need it.