14.8v 18650 lithium battery pack 2000mAh medical beauty medical ventilator lithium battery

Product Description
14.8v 18650 lithium battery pack 2000mAh medical beauty medical ventilator lithium battery





Safety Advantages:High woking voltage, low self-discharge and stable performance. We maintain strict control over the entire product cycle.Product Details:
Cell type: 18650 2000mAhAssembly method: 4S1PCapacity: 2000mAhVoltage:14.8VContinous discharge current: 0.2C-1C
Dimension:76*72*19mm


Friendly Reminder:
Other Capacity: 2200mAh/2400mAh/2500mAh/2600mAh
Other Voltage: 14.4V
Protection Board Functions: overcharge, overdischarge, overcurrent, short-circuit protection
Applications: medical ventilator, medical beauty device, etc


Tips Before Purchase 
Please confirm the compatible model and battery part number carefully before you purchase it.If you are not sure, please send email to us with your battery details or pictures, we will give you professional suggestions.
 

Detailed Photos:
Company Profile
                                                                       Our company
                                                                          
Shenzhen Bofuneng Battery Co.,Ltd founded in 2003, is a new high-tech enterprise, specializing in research, manufacture and sales of various cylindrical lithium ion battery, lithium iron phosphate battery and all kinds of battery pack products.Our products have the advantages of light weight, high capacity, high energy density, low internal impedance, long cycle life, low self-discharge and good consistency, which are mainly sold to Domestic, Europe, North America, Southeast Asia, and etc.


At present,we have three production bases, located in Shenzhen, Meizhou and Huizhou. And the total plant area is about 150,000㎡ with more than 700 employees.We have more than 60 expert engineers with professional and mature lithium battery R&D production and many years of experience in battery industry. Our daily output is 400,000 battery cells and 3,0000 assembled battery packs, through ISO, UL, KC ,CB , UN38.3 , RoHs, CQC certifications and other domestic and foreign product safety enterprise qualification certification.Our factory is equipped with advanced battery production equipment, using high-quality raw materials, strictly abide by advanced production technology and through the establishment of a strict quality management system, to produce battery series products that can reach the international advanced level. We have more than 80 models of battery cells,which can be assembled into different battery packs according to customer's personalized demand. We can provide customers with batteries not only conventional models but also customized models as per their special request.Our products can be used in many fields,such as LED Light,Toys, E-cigarettes, Power bank, Notebook Computers, Consumer Household Appliances, Medical Beauty Equipments, Power Tools, Model Aircraft, Communication Equipments, Energy Storage and other Electronic Products.We will carry on to try our best to solve the individual needs of our every customer and develop with them together.



Why choose us
                                                          Our daily output
                             about 300,000 battery cells are produced in various model every day 
                                                    and 40,000 assembled battery pack.


                                                    Our advanced equipment
                                                              
                                                             Our certifications


                                Our factory strictly adheres to ISO 9001:2015 guidelines                                     Product Certifications:UL,CB,UN38.3,KC,RoHs and etc
                                                                                                                                                         Various models for your choice
                                                     We can customized service to solve 
                                                            the individual needs of our 
                                                                      every customer.
Battery Cells
Battery Packs
Packing & Delivery
Cell Performance
Item
Test Methods and Condition
Criteria


0.2C Capacity
After standard charging, rest battery for 10min, then discharging at 0.2C to voltage 3.0V, recording the discharging time.
≥300min





  Cycle Life
Constant current 0.5C charge to 4.2V, then constant voltage charge to current declines to 0.01C, rest 10min,constant current 0.5C discharge to 3.0V,rest 10min. Repeat above steps till continuously discharging capacity Higher than 80% of the Initial Capacities of the Cells.


≥300min

Capability of keeping electricity
20±5℃, After standard charging, rest the battery 28days, discharging at 0.2C to voltage 3.0V, recording the discharging time.

≥240min

Discharge at high temperature
After standard charging, rest the cells 4h at 60±2℃, then discharging at 1C to voltage 3.0V, recording the discharging time.
≥54min
Discharge at low temperature
After standard charging, rest the cells for 16h at -20±2℃, then discharging at 0.2C to voltage 3.0V, recording the discharging time.
≥210min


Thermal shock
Put the cells in the oven. The temperature of the oven is to be raised at 5±2℃ per minute to a temperature of 130±2℃ and remains 30 minutes.
No fire, no smoke
Over charge testing

At 23±5℃, charging cells with constant current 2C to voltage 5.0V, Stop test till cells temperature 10℃ lower than max temperature.
No smoke or fire
Over discharge testing

At 23±5℃, According to the requirements of standard charge, the cells will be discharge to cut-off voltage, then connect with external load of 30 ohm for 24 hours.
No fire, no smoke, no leakage.
Short-circuit testing
At 23±5℃, After standard charging, connect cells anode and cathode by wire which impedance less than 80±20mΩ, keep 6h.
No smoke or fire
Our Customers
Our customers are from all over the world,such as Southeast Asia,Europe,USA,Domestic,etc.
In 16 years, Bofuneng gradually go to the forefront of the industry from an abscure small business,which can't do without hard workers and the trust and support of our customers.
In the future,we will carry on to try our best to meet our customers' demands and develop with our customers together.

FAQ


Q1: What is your terms of payment?
A1: We can accept T/T,Paypal,Western Union,Trade Assurance,etc.Q2: Are you a factory or trade company?
A2: we are a professional manufacturer, not a trade company.Q3: What's the lead time for the mass production?
A3: It depends on the actual situation,if with stock,the lead time will be 1-5 days,if without stock,it will depend on your order quantity,usually within 30 days.Q4: Can I get the sample?
A4:Of course,we can send you sample to check the quality first,if you pay the freight.Q5 : Can you make customized models?
A5: Of course. We have professional engineers that can give you the most suitable solution according to your special requirements.Q6: When can I get the price?
A6: We usually quote within 14 hours after getting your inquiry.If you are urgent to get the price,please call us or tell us in your email so that we can handle your inquiry priority.