Rated Voltage | 48V |
---|---|
Rated Capacity | 2900mAh |
Battery Size | Customized |
Charge Temperature | 0-45℃ |
Discharge Temperature | -20~60℃ |
Application | Robotics |
We are a professional lithium battery factory in China. Now we briefly introduce how to produce lithium batteries. It starts from cathode & anode mixing, coating, baking, calendering, automatic slitting & cutting, winding, top & side sealing, electrolyte injection, pressing formation, forming, capacity grading, OCV1 & OVC2, cell to PCB, insulation and shipping. Welcome to contact and ask for the workflow table list.
Nominal voltage: 48.1V
Nominal capacity: 2900mAh
Working voltage: 32.5V~54.6V
Working current: 10A
Overcurrent protection: 30±5A
Operating temperature range: 0-45℃ (charging), -20~60℃ (discharging)
Overcharge protection: 4.25V±0.025V
Over-discharge protection: 2.5V±0.05V
Charge balance function
Balanced starting voltage: 4.18V±0.025V
Balance current: 50±10mA
Charging temperature protection function: 65±5℃
Discharge temperature protection function: 65±5℃
The numbers 18650 in the 18650 lithium battery represent the appearance size: 18 means a diameter of 18mm, 65 means a length of 65mm, and 0 means a cylindrical battery. It is a standard lithium-ion battery model set by Japan’s SONY company in order to save costs, called 18650 lithium battery.
18650 lithium battery pack usually consists of three parts: 18650 cells, protection board (usually called PCBA) and shell structure. The best 18650 lithium battery pack should choose the best of the following three components:
The best 18650 lithium battery pack should be composed of first-line brand cells, and the mainstream capacity ranges from 1800mAh to 3500mAh. The single cell has undergone a series of safety tests and performance tests. After years of quality evaluation, high-quality batteries recommend the following:
Global first-line brand 18650 batteries: Samsung, Panasonic, LG, Sanyo, Sony.
China’s first-line brand 18650 batteries: Lishen, BAK, etc.
The core component of the lithium battery protection board is the protection IC. The main materials of the protection board are PCB, magnetic field effect transistor (MOS tube), NTC, PTC, capacitor, resistor, diode, triode, etc.
Overcharge protection: When the voltage of a certain string of the battery pack is greater than the maximum value (overvoltage) and the protection delay is reached, the IC controls the CMOS to turn off the charging circuit.
Over-discharge protection: When the voltage of a certain string of the battery pack is less than the maximum value (under-voltage), and the protection delay is reached, the IC controls the DMOS to turn off the discharge circuit.
Over-current and short-circuit protection: When the output current of the battery pack P+ and P- exceeds the over-current/short-circuit current value and reaches the over-current/short-circuit delay, the control circuit controls the discharge DMOS to turn off the discharge circuit and stop discharging.
High and low-temperature protection: When the temperature sensor reaches the temperature threshold and reaches the protection delay, the control circuit controls the charge and discharge MOS tube to turn off and stop the charge and discharge.
The lithium battery protection board also has the functions of power detection, remaining capacity display, battery working status display, communication remote control and other functions.
According to the needs of electrical appliances, design a matching shell structure, usually plastic shell, metal shell, simple PVC heat shrink, etc.
For the 18650 lithium battery pack, the superb PACK capability is very important. It is necessary to have advanced equipment, skilled technical workers, a mature management model, and strict production requirements to ensure that the 18650 lithium battery pack can be welded, tested, There will be no omissions in important links such as aging and pre-shipment testing, and the best 18650 lithium battery pack will be produced.
We will contact you within 1 working day, please pay attention to the email with the suffix “@hlcbattery.com”.