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OEM 357090 4000mAh Lithium Polymer Battery Pack For Tablet

OEM 357090 4000mAh Lithium Polymer Battery Pack For Tablet

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Large Image :  OEM 357090 4000mAh Lithium Polymer Battery Pack For Tablet

Product Details:
Place of Origin: Shenzhen, China
Brand Name: GUANYU
Certification: CE ROSH UN38.3 MSDS
Model Number: GUANYU-FF319
Payment & Shipping Terms:
Minimum Order Quantity: 100 packs
Price: Negotiable
Packaging Details: Standard export carton
Delivery Time: 3-6 weeks
Payment Terms: 30% before production,70% before delivery
Supply Ability: 10000 packs per month
Detailed Product Description
Type: Li-Ion, Lithium Battery Cycle Life: ≥1000times
Application: Tablet Computer Electronic Equipment Capacity: 4000mAh 5000mAh Or Customized
Standard Voltage:: 3.7V Oem: Acceptable,Welcome,Yes
Size: 35*70*90mm Weight: 100g
High Light:

357090 Lithium Polymer Battery Pack


OEM 4000mAh Lithium Polymer Battery Pack


357090 Tablet Battery Pack

Factory customized 357090-4000mAh soft pack polymer battery pack tablet battery pack

Use range:
The lithium battery pack is an explosion-proof battery pack. Low temperature battery pack can be customized. It can discharge at minus 40 degrees. This product can be used in infrared camera. Beauty equipment. High-end electronic products such as medical equipment.


Product specification

No. content Testing method Remark
Charge cut-off voltage
Discharge cut-off voltage
3 Standard charge
Under the condition of the ambient temperature of 25±2℃,Charge the battery at constant current of 0.2C to reach 4.2V. Then charge the battery at constant 4.2V voltage until the charging current decreasing to 0.02C.
4 Standard discharge
After the standard charging , rest for 1 hour then
discharge to 2.75V@0.2C.
5 Shipments voltage 3.7-4V capacity ≤30 %
6 Maximum Charge Current ≤1000mAh  
7 Maximum continuous
working current
8 Rated capacity Typical capacity:4000mAh
Minimum capacity:3950mAh
discharge after standard charge
9 Operation temperature range charging:10~45℃
10 Storage temperature
≤1 month: -20 ~ 45℃
≤3 months: 0 ~ 30℃
≤1 year: 0 ~ 30℃
Best 10~25℃ for
long-time storage



OEM 357090 4000mAh Lithium Polymer Battery Pack For Tablet 0



Delivery Time:


- Material Preparation Time: 7-15 days (or inventory)

- Production & Assembly Time 3-10 days

- Testing & Packaging Time: 2-10 days

- Total Delivery Time: 30-45days

- The faster delivery could be negotiable.



Packaging & Shipping

One pc in a PE bag, and then in a standard export carton or Custom-made Package.
Delivery Methods:
① By express UPS/DHL/FEDEX/TNT (It takes 3-5 days to arrive).
② By airfreight (It takes about 3~7 days to arrive) .
③ By sea shipment (It takes about 35 days to arrive).
Delivery Time: 3-5 days for samples, 8-20 days for mass production, depend on the QTY.


Contact with our sales team for your OEM and ODM order.


OEM/ODM Service:

If you want to display your own brand logo in products, bags, labels or anywhere. Or you need to develop battery packs according to your product orientation. Our OEM and ODM services are ready to do it.


Guanyuestablished in Shenzhen on July 18, 2005, mainly in the business of battery packs. In 2009 the company passed ISO9001 and improved the product quality standard to fulfill the high-end requirements from our customers.


In 2012, Guanyu moved to a new facility and expend the production capacity, the Productivity improved nearly 10 times than before.


In 2013, Guanyu imported ERP (SAP) system to supervise order execution process.


In 2017, Guanyuexpanded the SMT, imported high-speed patch machine from Germany.


Until now the factory grows into a modern enterprise which integrated injection molding, PCB designing, SMT and battery pack assembling services.


In 2018 the company passed ISO14001certification, introduced automated battery production line to further improve the production quality and capacity.

Factory customized 357090-4000mAh soft pack polymer battery pack tablet battery pack

Contact Details
Shenzhen guanyu new energy technology co., ltd

Contact Person: sale

Tel: +8615013633680

Send your inquiry directly to us (0 / 3000)