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Lithium Battery Pack 7.4V 4400mAh 18650 Battery for Power Supply

Name: Lithium Battery Pack 7.4V 4400mAh 18650 Battery for Power Supply
Brand: all-electronics-online.com
SKU: 818512145
Availability: InStock
Rating: 4.8 (98 reviews)

Price:	Negotiable/Piece
Min Order:	500/Piece
Pay Type:	L/C,T/T,D/P,Western Union,Paypal

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Showroom Product Company Profile

Prod Model:	UB-7.4V 4400mAh
Weight:	100g
Certicification:	Ce/RoHS
Type:	Lithium-Ion Battery Pack
Connection Mode:	Series and Parallel
Rated Capacity:	4400mAh
Standard Voltage:	7.4V
Usage:	LED Light
Electrolyte:	Lithium-Ion

Product Description

li ion battery pack 7.4V 4400mAh 18650 battery for power supply

li ion battery pack 7.4V 4400mAh 18650 battery for power supply

Specification:

NO.	Item	Specifications
1	Norminal capacity	4400mAh 0.2C Discharge
1	Minimum capacity	4300mAh 0.2C Discharge
2	Nominal voltage	7.4V
3	Charge current	Standard Charge :0.2C Rapid charge :1.0C
4	Standard Charging method	0.2C CC(constant current)charge to 8.4V,then CV(constant voltage 8.4V)charge till charge current decline to ≤0.01C
5	Charging time	Standard Charging Approx 5 hours Rapid charge Approx 1.2hours
6	Max.charge current	Constant Current 1C Constant Voltage 8.4V 0.01C cut-off
7	Max.discharge current	Constant current 1.0C end voltage 6.0V
8	Standard Discharge Current	Constant current 0.2 C end voltage 6.0V
9	Discharge cut-off voltage	6.0V
10	Max charge voltage	8.4V
11	Initial Impedance	≤80mW
12	Weight	Approx:190g
13	Operating temperature	Charging: 0ºC~45ºC Discharging:-20ºC~60ºC
14	Storage temperature	-5ºC~35ºC
15	Storage Humidity	≤75% RH
16	Appearance	Without scratch,distortion,contamination and leakage
17	Standard environmental condition	Temperature : 23±5ºC Humidity : 45-75%RH Atmospheric Pressure : 86-106 Kpa

Company information
-Ubetter is a leading manufacturer of battery in China for over 6 years , Ubetter brand has been successfully established and highly recognized in the domestic market as well as abroad.

Certification:
UL1642 approval
UN38.3 approval
ROHS compliant
CE compliant

Applications:
Flashlight, MP3,Hand Electric Drill, Medical Apparatus, LED Light, Meter & Instruments,mobile phone, walkie-talkie, household electrical appliances, home telephone set and more, widely used for our daily life.

Features:
Lightweight and high-energy density
Ultrathin and can be different shapes
No memory effort
Long cycle lifespan over 500 cycles
Minimal self-discharge
Eco-friendly

Our advantages:
Excellent staff team
Perfect company system and a steady financial condition
Strong production
Fast delivery
Good after-sale service
Large consumer group,can bring you large profits as well .

Packaging and shipping:
Blister card ,PVC shrink ,gift box, nude packing , OEM packing and more
Lead-time:3-20 working days for normal orders.

Quality and Guarantee:
Product standard: From design, material preparation to production, quality control, sales and customers service, MassPower batteries follow the ISO9001, CE, RoHS international standard.

Life expectancy:
All MassPower batteries use full A+ battery cells. No A or B grade low quality cells inside so that MassPower batteries have longer working life and larger capacity. We guarantee full and real labeled capacity.

Power management:
All MassPower rechargeable batteries have built-in high quality PCB board, charging protectors, thermal protectors and circuit breakers, effectively avoiding the over-charge, over-discharge, over heating and short circuit. You will have complate confidence on our products.

Shenzhen Ubetter Technology Company Ltd.
Cellphone: +0086-13537782427

Introduction

Shenzhen Ubetter Co., Ltd, founded in 2013, has become a comprehensive battery manufacturer with the combination of R&D, manufacturing, marketing and service.

Shenzhen Ubetter, The Leader of Li-ion polymer batteries manufacturer, located in Shenzhen city, is specialized in Power battery series(such as electric-bikes, electric scooter and electric cars, etc), Storage battery, High-rate discharge Lithium ion battery(10C-60C high-rate discharge series such as air modeling and power tool etc), ). High Temperature Li-ion battery(up to 85° ), Low Temperature Polymer Li-ion battery(up to -40° ), Ultra-thin battery(up to 0.43mm). Ubetter has succeeded to solve the power battery core technologies problem: High Consistency and Excellent Safety Performance. Products' performance is leading in domestics market and in path with international standards. Products are widely employed in digital products series(such as MP3, UPS, etc. ), notebook PC series, 18650 series, and sales over 100 countries worldwide.

With over 4000 square meters dust-free workshop, 200 employees, automatic production lines and modernized equipments, Ubetter is offering reliable quality, efficient delivery and competitive price, by which we have gained global reputation. We are qualified for ISO9001, UL, CE, RoHS, IEC, UN38.3, MSDS, patent approves and National Hi-TECH Enterprise certification.

Our advantages

Shenzhen Ubetter Technology Co., Ltd. is a famous enterprise in the line of China's new energy business, mainly producing environmentally friendly power battery for electric vehicles, integrating the research and development, producing and selling of Lithium-ion Battery, wind and solar Energy Storage Battery as well as various kinds of batteries. Bearing with the spirit of pragmatism and innovation, we have been endeavoring to produce products with best quality for all walks of life by people-oriented management and high efficiency production line. Our R&D department has mustered skilled persons with over ten years' experience in battery research and developing, playing an leading role in the field of R&D of more and more series of batteries. Meanwhile we have cooperated with many big battery enterprises for many years and have numerous connections in this line of business. We have abundant battery resources with guaranteed quality. Shenzhen Ubetter Technology Co., Ltd. is located in the beautiful Dapeng bay with charming and beautiful scenery, excellent geographical location and convenient transportation.