March 03, 2021

China Factory Rechargeable 852025 3.7V 400mAh Li-ion Polymer Battery

Model NO.: DL-852025
Rated Capacity: 400mAh
Standard Voltage: 3.7V
Usage: Headset,,Mini Speaker
Electrolyte: Li-Polymer
Battery Type: Grade a Lipo Battery
Lifecycle: 500 Times
Warranty: 1 Year
OEM and ODM: Accepted
Application: MP3,MP4,Mini Speaker and Other Digital Products
Origin of Country: China
Trademark: DELONGTOP
Transport Package: Standard Export Carton
Specification: 8.5*20*25mm
Origin: China
HS Code: 8507600090
China Factory Rechargeable 852025 3.7v 400mAh Li-ion Polymer battery 

Model DL-852025
Nominal voltage 3.7V
Charge voltage 4.2V
Nominal capacity 400mAh
Battery type Grade A lithium polymer battery cell
Standard charge current 80mA
Max charge current 400mA
Standard discharge current 200mA
Max discharge current 400mA
Discharge cut off voltage 2.75V
Net weight 10g
Size 8.5*20*25mm(T*W*L)
High safety over-charge,over-discharge,over-current,short circuit
Charge temperature 0°C ~ 45°C
Discharge temperature -10°C ~ 60°C
Terminal wires or connector

Key Features

  1. Intelligent Battery Pack Design
  2. Environmental Friendly Chemistry
  3. High Energy Density
  4. High Power Density
  5. Fast Charge Capability
  6. Excellent Cycle Life

Main Applications

    A.Telecommunications: Cellular phone, interphone, blue tooth earphone, ect.

    B.Video Devices: MP3/MP4/MP5, digital camera, portable DVD, portable television, electronic cigarettes,    electricity sound box, ect.

    C.Portable Devices: GPS,PDA, E-book ,PMP, PSP, laptop, walkie-talkies , portable medical device, etc.

    D.Illuminate Devices: Miner lamp, search light, ect.

    E.Others: Electric Toys, RC models, model aircraft, backup power, mobile power supply, hand electric drill, ect. 

China Factory Rechargeable 852025 3.7V 400mAh Li-ion Polymer Battery
China Factory Rechargeable 852025 3.7V 400mAh Li-ion Polymer Battery
China Factory Rechargeable 852025 3.7V 400mAh Li-ion Polymer Battery
Packaging and delivery:

Each battery pack put into small box or industrial pallet,then put into standard export carton

Shipping ways: air sea express(DHL  FEDEX   EMS  TNT  UPS  POST)

4.the delivery time based on which way you choose(express may take 3-5 working days, air may take 5-7 working  days,sea may take 20-30 working days)

China Factory Rechargeable 852025 3.7V 400mAh Li-ion Polymer Battery

Our services:
1. All of your inquiries or emails will be replied you within 24 hours
2. We can gurantee on time leadtime and excellent aftrer sales service
3. All of our battery with real capacity and Grade A quality
4. OEM and ODM accepted,size and capacity can be customized
5. If there are some defective items,we will replace new one for you with new order
6. We can help you to track the shipping status until you well received the goods

Company information:

Shenzhen DeLong Energy Technology Co., Ltd. is a professional new energy supplier in China focusing on the manufacture, research and sale of lithium ion battery product worldwide. Our lithium ion battery products are widely applied on digital device, electric vehicle, electric tool and back-up power system, bluetooth headset, digital camera, MP3 player, cellular phone, PDA, DMB, digital camcorder, mining lamp, RC model airplane, electric vehicle, etc.

We developed some high quality lithium ion battery products with our company technology characteristics through previous long term research and experience accumulation, DeLong battery won a good reputation and has become a popular brand in the international market attributing to the long cycle life, high energy density, stable work performance under different temperature environment and good safety performance. Our production capability goes up to 100K pcs per day by upgrading our current production facility in according to ours conditions.
China Factory Rechargeable 852025 3.7V 400mAh Li-ion Polymer Battery

China Factory Rechargeable 852025 3.7V 400mAh Li-ion Polymer Battery

1. Q: Where can I get the price?

A:We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price, 

please call us or tell us in your email so that we'll regard your inquiry priority.


2. Q: How can I get a sample to check your quality?

     A: After price confirmation, you can require for samples to check our quality. 


3. Q: What about the lead time for mass production?

     A: It depends on your order quantity and the season you place the order. 


4. Q: What is your terms of payment?

     A:30% deposit before production;70% balance will be paid before shipment or after copy of bill.


5. Q: What is Accepted Payment Currency?

     A: We accept USD, EUR, CAD, AUD,HKD, GBP, JPY, NZD and so on.

6.What kind of certifications can you provide?
   A:If your ordre quantity is big,then we can provide the CE,ROHS,FCC,IEC62133,MSDS and UN38.3 certifications and test reports.