Product Description:Battery model: JHY 21700
Type: lithium ion rechargeable battery
Nominal voltage: 3.7V
Nominal capacity: 4000mah
Standard charging: 0.2C/4.2V
Max charging: 1.0C/4.2V
Standard discharging: 0.2C/3.0V
Max discharging: 1.0C/3.0V
Size: 21*70mm
Work Voltage: 3.0V-4.2V as standard
Clycle life: 1000+times (80% DOD)
Warranty: 12 months
Color: blue or customized
Application:  small fan; flashlight; other consumer electonics
Shipment Voltage: ≥ 3.85V(suggested)
Operating temperature: Charging: 0 ℃-45℃
                                        Discharge: -20℃-60℃
Storage: -10℃-25℃       (12 months, ≥ 85%)
              -10℃-45℃        (6 months,  ≥85%)
              -10℃-55℃       (1 month, ≥90%)


Our Service:

Warrant: 12 months

Supply customized battery solutions and design services, one-stop services from cells to packs with PCM, Wires  assembly.

Company Information:

Juheyuan Technology Co., Ltd, established in 2007, is a national high-tech enterprise specializing in R&D, design, production and sale of polymer lithium-ion battery. At present, the company headquarter locates in Longgang District, Shenzhen. We own two plants, Huizhou plant covers an area of 20,000 square meters with more than 1,000 employees. We expanded Hunan branch plant in 2020 with an area of 22,000 square meters and more than 1,200 employees.

as a professional lithium battery supplier,we have excellent teams who focus on product R& D, quality control & inspection of high-capacity lithium battery, ultra-thin lithium battery, high-temperature lithium battery, low-temperature lithium battery and high rating lithium battery. Our lithium batteries are widely used in blue-tooth headsets, e-cigarettes, wearable products and other electronics. All of our batteries owns independent intellectual property rights and obtains lots of lithium-ion battery technology inventions and utility model patents.

 Equipped with Automated production instruments, high and new technologies supported by strong economic strength,wE have established business relationship with leaders in digital product industry, wireless equipment industry, electronic transporting equipment industry and other electronics industry. Besides, because of large overseas markets, most of our products have passed ISO9001 quality system certification, ISO14001 environmental management system standard and OHSAS18000 occupational health and safety management system. most batteries have passed UL and CB, CEGB31241, PSE, KC and other certifications.

Products range: 

High-capacity battery;
Long-cycle life battery;
Battery with high-temperature range vision;
Battery with low-temperature range vision;
High & low-temperature battery;
High-rate battery;
Ultra-thin flexible battery;
Diamagnetic battery etc. 

Certificates: 

CE, CB, IEC62133, FCC, UL1642, UL2054, UN38.3, MSDS, REACH, PSE, KC etc.

Also we are proud that JHY is fully RoHS compliant and has achieved accreditation to ISO 9001:2008. 

Company Pictures:



FAQ"
Q:What is your payment method?
A: We accept payment via PayPal, Western Union or T/T

Q:how long warranty do you offer?
A:General speaking, we offer one year warranty for battery.for quality problems,we will send you new one.We will bear the freight.

Q:how about the quality and safety of your battery?
A: All batteries we used Brand A grade cell&high quality buil-in BMS and they have 10 steps testing during the whole production to ensure the quality.

Q:What is your lead time?
A:Generally speaking, our lead time is 30 days after confirmation on the order based on 5k-10k.

Q:I can't find any models fit for our products, how could I do?
A:Every week we make some new models but don't update in time.Please send us the dimension range(length width thickness)and capability.We will check these ones haven't been showed online.Besides we can provide you customized battery.