Can the battery be stored in the appliance after it is used up or if it is not used for a long time?

If the electrical appliance will not be used for a long time, it is better to take the battery out and put it in a low temperature and dry place. If not, even if the electrical appliance is turned off, the system will still make the battery have a low current output, which will shorten the battery life.

What kind of conditions are better for batteries to be stored in? Does the battery need to be fully charged for long-term storage?

According to the IEC standard, the battery should be stored at a temperature of 20℃±5℃ and a humidity of (65±20)%. Generally speaking, the higher the battery storage temperature, the lower the capacity remaining rate, and vice versa, the best place to store the battery when the refrigerator temperature is 0℃-10℃, especially for the primary battery. On the other hand, even if the secondary battery loses its capacity after storage, it can be recovered by recharging and discharging several times.

In theory, there is always a loss of energy when a battery is stored. The inherent electrochemical structure of the battery itself determines the inevitable loss of battery capacity, mainly due to self-discharge. Usually the magnitude of self-discharge is related to the solubility of the cathode material in the electrolyte and its instability (easy self-decomposition) after heating. The self-discharge of rechargeable batteries is much higher than that of primary batteries.

If you want to store the battery for a long time, try to put it in a dry and low temperature environment and let the remaining battery power be about 40%. Of course, it is best to take the battery out and use it once a month, which can not only ensure a good state of preservation of the battery, but also prevent the battery from being completely drained and damaged.

If you have any requirements or any kind of query regarding the lithium battery solutions for your desired applications, feel free to communicate with our dedicated team at any time at marketing@everexceed.com.