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What are the precautions for battery use?
01) Prior to use, please carefully read the instructions for use;
02) Clean the contacts of the appliance and the battery, and if necessary, wipe them with a damp cloth, and then install them according to the polarity markings;
03) Do not mix used and new batteries or batteries of the same model but different types to prevent the reduction of efficiency;
04) Do not attempt to regenerate disposable batteries through heating or charging methods;
05) Do not short-circuit the battery;
06) Do not disassemble or heat the battery, or throw it into water;
07) When the appliance is not in use for a long time, remove the battery, and turn off the switch after use;
08) Do not discard waste batteries at will, and try to separate them from other garbage to avoid environmental pollution;
09) Do not let children replace batteries without adult supervision, and keep small batteries out of reach of children;
10) Store the battery in a cool, dry place away from direct sunlight.
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What are the optimal conditions for battery storage? Is it necessary to fully charge batteries for long-term storage?
According to the IEC standard, batteries should be stored at a temperature of 20±5°C and a relative humidity of (65±20)%. Generally speaking, the higher the storage temperature of batteries is, the lower the remaining capacity is, and vice versa. The best place to store batteries, especially disposable ones, is in a refrigerator at a temperature of 0 to 10°C. For rechargeable batteries, although they may lose capacity after storage, they can be restored by recharging and discharging a few times. In theory, there is always energy loss during battery storage. The inherent electrochemical structure of batteries determines inevitable capacity loss, mainly due to self-discharge. Typically, the magnitude of self-discharge is related to the solubility of the positive electrode material in the electrolyte and its instability following heating (prone to self-decomposition). The self-discharge of rechargeable batteries is much higher than that of disposable batteries. For long-term battery storage, it's best to store them in a dry, cool environment and maintain the remaining battery capacity at around 40%. Certainly, it's advisable to take the batteries out and use them once a month to ensure they are stored in good condition and prevent complete loss of charge that could damage the batteries.
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What are the possible reasons for charge failure of batteries or battery packs?
01) Zero voltage of the battery or any zero voltage battery in the battery pack;
02) Incorrect connection of the battery pack, or abnormal internal electronic components or protection circuit;
03) No output current for charging equipment failure;
04) External factors leading to too low charging efficiency (e.g., extremely low or high temperatures).
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What are the possible reasons for discharge failure of batteries or battery packs?
01) Reduced battery life after storage and use;
02) Undercharge or no charge;
03) Too low ambient temperature;
04) Low discharge efficiency. For example, when a large current is discharged, ordinary batteries cannot keep up with the rate of internal material diffusion, resulting in a sharp drop in voltage and inability to discharge.
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What are the possible reasons for short discharge time of batteries or battery packs?
01) Battery not fully charged, such as inadequate charging time or low charging efficiency;
02) Excessive discharge current, resulting in reduced discharge efficiency and shortened discharge time;
03) Too low ambient temperature during battery discharge, reducing the discharge efficiency.
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What are the main reasons for the swelling of rechargeable batteries?
01) Poor battery protection circuit;
02) No protection function as well as cell swelling;
03) Poor charger performance, with excessive charging current resulting in battery swelling;
04) Battery continuously overcharged with high-rate large current;
05) Forced over-discharge;
06) Design flaws in the battery itself.
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