Regarding the question of how to charge lithium-ion battery packs, we understand that lithium-ion battery packs require a matching charger. In the industrial accessory market, because each product is individually packaged and not interchangeable, the appropriate charger should be selected according to the lithium-ion battery pack being used, and charging should be strictly performed according to the requirements. Whether in the industrial or consumer market, the basic principle of charging lithium-ion batteries is the same; therefore, the charging steps and standards are similar. Generally, the nominal voltage of a lithium-ion battery is 3.7V, and the charging voltage is 4.2V.
Prevent charging at excessively high temperatures
If lithium iron phosphate battery packs are used at temperatures above the specified limit (above 35°C), the battery capacity will continuously decrease, meaning the battery's power supply time will not be as long as usual. Charging devices at such temperatures will cause even greater damage to the battery. Even storing batteries in relatively hot conditions will inevitably cause some damage to their quality. Therefore, maintaining a suitable temperature is a good way to extend the lifespan of lithium batteries.
Protect against charging at excessively low temperatures
If lithium batteries are used in low-temperature conditions, i.e., below 4C, the lifespan of the lithium-ion battery pack will also be reduced. Some original lithium batteries in mobile phones may even fail to charge in low temperatures. However, there is no need to worry too much, as this is only a temporary situation. Unlike the use in high-temperature conditions, once the temperature rises, the molecules in the battery are heated and immediately recover to their previous capacity.