Difference between 21700 lithium battery and 18650 lithium battery.
Taking batteries as an example, the difference between 18650 and 21700 is that lithium batteries have different specifications and the same voltage, but the difference lies in size and battery capacity. 21700 is definitely larger in size and capacity than 18650.
1. Thomas Waldmann's research shows that structural differences can lead to differences in electrical and thermal performance between two types of batteries. For example, due to the more pronounced thermal effect of the 21700 battery during discharge, the 21700 battery has smaller polarization in rate testing.
2. The advantages of 21700 include a 35% increase in battery cell capacity. The cost of the system is expected to decrease by about 9%. The weight of the system is expected to decrease by about 10%. The energy density of the battery system has increased by about 20%. At the same time, it also maintains the high reliability and stable performance of
18650 batteries.
3. How to extend the lifespan of mobile phone batteries? To charge nickel cadmium batteries correctly according to the instructions, it is necessary to ensure that the battery is completely discharged before charging, and to keep the battery fully charged after recharging. To maximize battery life, you can also consider turning off the "WiFi" setting. Refrain from using as little as possible when unable to charge. Turn off automatic brightness and manually adjust to the appropriate brightness.
