The secret to longevity of lithium batteries
At least for your lithium batteries, the secret is to charge each battery to 4.1 volts, not to charge each battery to 4.2 volts and never discharge them to a fully discharged level. Operating the battery pack between the two ends of the charge/discharge level will greatly extend its life.
There are several conditions that can cause degradation of lithium batteries. One is heat. For the purpose of RC modeling, this is likely to cause the greatest degradation. Other factors are related to the state of charge and the influence of the materials at both ends.
At both ends of the charge state, lithium ions are forced into the carbon material on the board. This leads to the destruction of the material, and fewer ions can be retained in future charging cycles, resulting in a decrease in capacity. This damage mainly occurs at the end, so staying away from the end can even help extend the life of the lithium battery pack.
Some chargers stop charging with a voltage of 4.1 volts for each lithium battery. You can see that using 4.1 volts can keep you away from the highest volts, and charging the lithium battery higher than the traditional 3 volts will Keep you away from the lowest volts. This can better extend the life of your lithium battery.Related information: The working principle of the lithium battery, the safety features in the design of the lithium battery, the safety technology development status and the future of the lithium battery
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