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What is the maximum capacity of a 18650 lithium-ion battery?
The positive electrode material of the NCR formula was created by Panasonic, and previously only had a large capacity of 18650. After acquiring Sanyo, Sanyo also produced one.
Currently, the maximum capacity of Panasonic Sanyo 18650 batteries can reach 3400MA.
The best battery manufacturers can only produce 3400MA, but 6000MA is definitely not enough.
Although large manufacturers like Panasonic Sanyo can achieve 3400MA, in fact, they cannot achieve 3400MA during testing.
Compared with polymer batteries, the 18650 lithium-ion battery is relatively standard with little change in capacity. In most cases, the capacity of 18650 lithium-ion batteries is usually 1200mAh and 3350mAh; There are also some ordinary capacities ranging from 2200mAh to 2600mAh. 18650 is just the size of the battery, which can be divided into lithium-ion 18650, lithium iron phosphate 18650, nickel hydrogen 18650, etc. according to the type of battery. But the most common is the 18650 lithium-ion battery.
Lithium ion batteries have a high energy density, with a capacity 1.5 to 2 times that of nickel hydrogen batteries of the same weight, and a very low self discharge rate. In addition, lithium-ion batteries have almost no memory effect and no toxic substances, which is also an important reason for the widespread use of lithium-ion batteries.
The meaning of standard lithium-ion battery 18650 is: diameter 18mm is 18, length 65mm is 65, and cylindrical battery is 0. The nominal voltage of 18650 lithium-ion batteries is 3.7v and the charging voltage is 4.2v. Lithium ion batteries are already a very mature type of battery, which can be used not only in laptops, charging banks and other products, but also in some Tesla 18650 models.
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