7.4V 2200mAh 18650 Li-ion Battery Pack 2S1P Lithium Ion Battery Pack

Item No.: TWE0330
Nominal Voltage: 7.4V
Nominal Capacity: 2200mAh
Max Dimensions: 69x37.5x19.5mm
Certificate: CE, ROHS, UN38.3, IEC62133, MSDS, etc.
Warranty: 1 year
Applications: GPS, POS, IoT, Smart Home device, Medical Device
Description Brand Introduction Review
Product Specifications
Item Specifications Remark
Model No. TWE 18650-2200-2S1P
Nominal Voltage 7.4V
Nominal Capacity 2200mAh Standard discharge after standard charge
Dimensions 69x37.5x19.5mm max LxWxT
Cycle Life ≥800 times ≥ 80% of the initial capacity
Charge Method CC/CV lithium battery special charger
Charge Cut-off Voltage 8.4V
Discharge Cut-off Voltage 5.5V
Standard Charge Current 0.2C
Standard Discharge Current 0.2C
Max Continuous Charge Current 1C 10℃≤Temp<45℃
Continuous Discharge Current 1C
Peak Discharge Current 3C
Recommended Operation Ambient Temperature Charge: 0~45℃ Discharge:-20~60℃
Storage Temperature -20℃~25℃ 12 months
-20℃~45℃ 3 months
-20℃~60 ℃ 1 month
Internal Resistance ≤100mΩ
Weight 96±5g
Product Advantages
-High safety
-Real capacity
-Low internal resistance
-Stable discharge voltage
-High consistency in capacity&voltage&resistance
-No fire, no explosion, no leakage
Bluetooth speaker, flashlight, solar light,intelligent door lock, gps tracker, parking device, medical device, POS machines, power tool, garden tool, sweeper, electric scooter, electric bike, outdoor power supply, etc
Bluetooth Speaker
Solar Light
Electric Scooter
Electric Bike
Safety certificate: CE,CB, IEC62133, UL, PSE
Environmental certificate: ROHS, REACH
Quality management certificate: ISO9001, ISO14001, BSCI
Shipping certificate: UN38.3, MSDS, Air/Sea Transport Identification&Classification Report
CE certificate
RoHS certificate
IEC62133 certificate
UN38.3 certificate
ISO9001 certificate
Production Process
01 Materials Mixing
Fully automatic feeding system,High precision, fully enclosed
02 Coating
High precision constant temperature coating machine
03 Electrode Piece Rolling
Precision automatic roller machine
04 Electrode Piece Slitting
Automatic battery electrode piece continuous slitting machine
08 Injection
Fully automatic bell type liquid injection machine
07 Tab Welding&Beading
Automatic welding machine
06 Into Shell
05 Winding
Automatic winding machine
09 Automatic Laser Welding
10 Formation&Capacity Sorting
Needle bed type charging cabinet
11 Cycle Test
All cells will be 100% tested for 3 cycles.
12 OQC Test
100% full test on appreance, voltage, capacity, resistance, size, etc
With 20 years experience in battery field, Topwell can arrange the battery ship by Sea / Air / Express.
We can provide you with all DG certification which allows you to ship these batteries,
such as UN38.3 /MSDS /DG. We can ship from Shenzhen,Shanghai,HK...
Brand Introduction

Yichun Topwell Power Co., Ltd (Trademark:TWE) established in 2002, is a high-tech enterprise focusing on the R&D, production and sales of lithium polymer batteries, lithium ion batteries, lithium iron phosphate batteries, and lithium thionyl chloride batteries. Products are widely used in consumer electronics, Internet of Things, smart home, medical, vehicle, home and outdoor energy storage, and have obtained CE, RoHS, Reach, UN38.3, IEC62133, CB, UL, MSDS certifications, etc.


Topwell moves on by providing reliable, efficient and intelligent battery solutions to meet different energy needs. We have efficient engineering, production and quality management teams. From raw material procurement, to production, testing, sales and after-sales service, all steps have been controlled by a strict quality management system. Our factory has passed ISO9001, IS014001, BSCI certification, SGS, Intertek audit. With the advantages in price, quality and service, we have established long-term and stable cooperative relationships with many well-known brands. Topwell always attached the great importance to the long term cooperation with customers. No matter the order is big or small, we do our best to support you the highest quality with favorable price. We believe that Topwell Power can be your best battery supplier!


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