What does the battery industry mean by PACK? Do each of the four letters stand for something?

PACK , generally refers to the combination of batteries!

PACK , generally refers to the combination of batteries, PACK can be a single battery, such as cell phone batteries, digital camera batteries, MP3, MP4 batteries, etc., can also be a series-parallel combination of batteries, such as laptop batteries, medical equipment batteries, communications power supply, electric vehicle batteries, standby power supply and so on.

The parallel and series connected batteries require the same type and model, and the difference in capacity, internal resistance and voltage value is not more than 2%. The essence of the battery charging and discharging curve is the same (dynamic consistency). However, it is difficult to do, in general, the battery through the parallel series combination, capacity loss of 2% ~ 5%, the more the number of batteries, the more capacity loss.

A, overcharge protection, different systems of battery overcharge protection voltage is different, in general, lithium iron phosphate overcharge protection 3.65V ~ 3.85V, lithium cobalt, lithium manganese, ternary materials lithium battery overcharge protection voltage of 4.2V ~ 4.35V.

B, overdischarge protection, lithium iron phosphate overdischarge protection voltage of 2 ~ 2.5V, the other three kinds of over discharge protection voltage 2 ~ 2.5V, the other three kinds of over discharge protection voltage 2 ~ 2.5V, the other three kinds of over discharge protection voltage, the other three kinds of over discharge protection voltage, the other three kinds of over discharge protection voltage. 2.5V, the other three lithium batteries are 2.3V~2.9V.

C, short circuit protection. Determined by the parameters of IC and MOSFET. Different ICs and MOSFETs have different short circuit protection values.

D, overcharge protection recovery voltage. ICs have this function, generally the recovery voltage is lower than the protection voltage 0.1~0.2V.

E, over discharge protection recovery voltage. Some ICs do not have this function. After over-discharging, it needs to be recovered by charging.

F, short circuit protection delay time. Generally more than ten milliseconds.

G. Equalization function. Some applications require equalization function. Because the battery discharge current is large, equalization is not easy to achieve, at present, more for charging equalization, equalization is to ensure that each battery can be fully charged to extend the service life, maximize the role of the battery.