Li-Ion chargers

Li-Ion

— lithium-ion batteries were originally developed as power sources for portable electronics such as mobile phones. One of their main advantages is connected with this — high charge density (good capacity at small sizes). In addition, such elements are not subject to the memory effect and can be charged quite quickly. On the other hand, they do not tolerate low temperatures well, and in case of malfunctions they can even catch fire (although the probability of this is still quite low). Yes, and these batteries are more expensive than "nickel".