A user of the Habr platform under the pseudonym Telnov_WIKI conducted an experiment in which he found that charging lithium-ion batteries with increased power does not have a negative effect on their capacity. About this enthusiast said in your feed.
During operation, Sanyo NSX and LG 18650HG2 batteries were charged with a current of 20 A, which significantly exceeded the nominal parameters of 2 to 5 A.
Based on the results of 100 charging cycles, the Sanyo NSX battery showed a capacity loss of 8.5%; This is lower than the manufacturer’s stated 11.4% when charging with 5 A current. During similar tests, the LG 18650HG2 shows a 10% drop in capacity after charging the battery with a current of 5 A. 20 A, while the manufacturer indicates a loss of 15.4% when using a less powerful current of 4 A.
The experiment showed that fast charging is not only safe, but can also be more effective in preserving battery capacity, subject to certain power limits. According to the researcher, fast charging cannot cause batteries to deteriorate, deteriorate quickly or burn.
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