①Large capacity: a battery cell of a lithium-ion battery is at least 1200mah or more, or even 3600mah, while the average battery cell is only about 500;
②High energy storage efficiency and good stability: the environment of 70 can still maintain full performance output, and there is generally a protection circuit inside to prevent the battery from burning out;
③Almost no memory effect: it is not necessary to discharge all the remaining power before charging, it can be charged and discharged at any time, and it is convenient to use;
④High charge-discharge cycle life: The number of cycles of lithium-ion batteries is tens of thousands and the high temperature resistance is very good;
⑤Environmental protection, no toxic substances: non-toxic, harmless, non-polluting, certified by RoHS quality.
Lithium-ion batteries are generally not used in one, but multiple together. We often call them batteries. This kind of battery often appears in life outside, such as our laptop batteries, power banks, electronic digital, printer wireless equipment, Portable products, intercom communications, POS machine lithium-ion batteries, etc. At present, the basic capacity of many batteries is 2200mah.
The following is the specification table of Sanyo's lithium-ion battery. Generally, a better battery has four important protection functions:
①Overcharge protection: When the lithium-ion battery is overcharged, the internal temperature rise of the battery will keep rising. A new detection system for the battery voltage is added. When the battery overcharge voltage reaches a certain value or time period, the overcharge function is used. Automatically stop charging to protect the battery;
②Over-discharge protection: Over-discharge means that the battery is always in an overloaded output state. Generally, there is discharge protection. At this time, the battery will be in a standby mode;
③Overcurrent protection: The overcurrent protection value can be adjusted, some things are a few amperes, choose the setting according to the actual situation
④Short-circuit protection; when the battery is short-circuited, the overcurrent is used to protect the battery from burning.
In addition to these four protection functions, some also have functions such as temperature and balance. Generally, the battery has a built-in PCM protection system with multiple protection functions.