What is the voltage and charging voltage of 18650 lithium battery?

What is the voltage and charging voltage of 18650 lithium battery?

The nominal voltage for a single section is generally 3.6V or 3.7V.

The charging voltage is generally 4. (Lithium cobalt oxide is 4.2V-4.3V).
The minimum discharge termination voltage is generally: 2. Below this voltage, it can easily lead to a serious decrease in battery capacity or even scrap.
Maximum charging termination voltage: 4.
Diameter: 18 ± 0.2mm.
Height: 65 ± 2.0mm.

Capacity: Above, the regular capacity is -, and LG has the highest battery capacity, which can be achieved, but the price is also not low.

The selection method of lithium batteries

1. Is there a clear capacity indicated. Batteries without clearly labeled capacity (such as milliampere hours) are likely to use inferior or recycled batteries. Many cheap batteries on the market are made from recycled battery cores. Although they are cheap, they have a short lifespan and unstable quality. Improper use may damage the phone.

2. Is there a guarantee of standby time. Standby time refers to the continuous usage time from the battery being installed in the phone to the next charge. The batteries sold in the general market cannot guarantee standby time to customers because of the unstable quality of the batteries. Many cheap batteries have short standby time due to the use of poor quality battery cores.

What is the capacity of a lithium battery
The capacity of lithium batteries is generally between~, while the capacity of general batteries is only about. If combined into a lithium battery pack, the lithium battery pack can easily break through.
The service life of lithium batteries is very long, with a cycle life of over times during normal use, which is more than twice that of ordinary batteries. High lithium batteries have high safety performance. To prevent battery short circuits, the positive and negative poles of lithium batteries are separated. So the possibility of it experiencing a short circuit has been reduced to the extreme.

Advantages of lithium batteries:

1. Widely applicable

Widely used in various electronic devices, such as laptops, walkie talkies, portable DVDs, instruments, audio equipment, aviation models, toys, cameras, digital cameras, etc.

2. Series connection

It can be combined in series or parallel to form a lithium battery pack.

3. Low internal resistance
The internal resistance of polymer batteries is lower than that of ordinary liquid batteries. The internal resistance of household polymer batteries can even be less than Ω, which greatly reduces the battery's self consumption. This polymer lithium battery that supports high discharge current is an ideal choice for remote control models and has become the most promising product to replace nickel hydrogen batteries.