How To Make 11.1v 2200mah Li Ion Battery Pack?

- Mar 02, 2019 -

How to Make 11.1v 2200mah li ion battery pack?


General Introduction:

First of all, what is the capacity of  18650 Lithium ion battery?

take folded lithium cobalt 18650 for an example, the nominal voltage of a single section is generally 3.7V. Charging Voltage: 4.20V. The minimum discharge termination voltage is generally 2.75V. The maximum charge termination voltage is 4.20V (Sanyo, Samsung and Panasonic's latest large capacity 18650 charge termination voltage is 4.35V). The diameter is 18 +0.2mm and the height is 65 +2.0mm. Capacity: 1000 mAh or more (the highest known is Panasonic 3100 mAh)


At present, the world's largest manufacturers of this type of lithium batteries are Sanyo, Panasonic, Samsung, Sony and so on. Sony has been troubled by the notorious laptop battery explosion.


The 18650 battery for laptop computers with lithium batteries usually has a capacity of 2200 mAh, which can be interpreted as 3.7V voltage and 2200 mA current, and can be used for 1 hour. Higher specifications are 2400 mAh and 2600 mAh (Sanyo cells are the majority, and Sony notebooks mostly use 2600 mAh specifications).


Secondly, how to make 11.1v 2200mah Lithium ion battery pack with 3.7V/2200mAh 18650 cells.


The three-cell battery is a battery pack formed by three 18650 batteries connected in series. The final labeling parameter of the battery pack is 11.1V/2200mAh. 11.1V = 3.7V * 3, the output current remains unchanged in series.


There is also a standard 10.8V, that is, a single cell has a voltage drop resulting in a reduction in the total voltage.


Nowadays, most popular netbooks are battery packs of this specification.


Question: can I parallel 11.1v 2200mah 15c with 30c battery pack in a drone?

Answer: generally yes, but seriousely not suggested. after long time use, the 15c 11.1v 2200mah battery pack should be destroyed at first. and please take very careful with power irragate backward without profession. for more details, please contact info(at)sinoli-batteries.com. welcome to discussion interesting ideas.