3.7V 4000mAh Lithium Polymer Battery

FP Battery is China top 3.7V 4000mAh lipo battery Manufacturer and Supplier , it makes all kinds of lipo battery, voltage ranges: 3.7V , 7.4V, 11.1V, 14.8V, 18.5V, 22.2V,25.9V, 29.6V, 33.3V,36V Lithium Polymer Battery .

Lithium Polymer battery is really the latest state of the art technology in rechargeable batteries. It is extremely thin, light weight and high energy density with low self discharging rate compared to any other rechargeable chemistry.

  1. OEM & ODM Services
  2. 100% Brand-new
  3. High energy density lithium polymer battery
  4. 8 Years Experience
  5. Great Custom Support
  6. The batteries are applied to cordless phone, solar lighting, electrical drills, shavers, emergency lighting etc.

Our Stock 3.7V 4000mAh Lipo Battery

  • 3.7V 3800mAh 388085 Lithium Polymer Battery

  • 3.7V 4000mAh 606090 Lithium Polymer Battery

  • 3.7V 400mAh 582728 Lithium Polymer Battery

  • 3.7V 4000mAh 802526 Lithium Polymer Battery

Why Choose US

Storage

Keep the cells in 40%-60% charged state during long period storage. We recommend to charge the battery every 3 months after receipt of the battery and maintain the voltage 3.7-4.0V, and store the battery in a cool and dry place.

Wide Application

Suitable for portable DVD players, bluetooth devices wireless devices, wearable electronic devices, PDA and digital cameras, GPS, monitoring units,  e-books,  tracking devices,  blood oxygen tracking equipment, pulse monitors, smart home systems.

OEM/ ODM acceptable

OEM & ODM services for special requirement on battery dimension, battery capacity, battery control board, battery connector

Hassle Free After Sales Service

For Any batch of our batteries within guarantee period, we will send new replacement batteries to you on our cost, no returns needed.Our batteries can be pre-built with battery protection circuit.

Reliable Performance

No leakage, No memory effect, excellent charging and discharging performance and long cycle life. Protection circuit function: over-voltage, over-discharge, over-current, short circuit protection, over temperature protection.

Direct Lipo Battery manufacturer

No lipo battery vendor involved, ie, more mark up on your products and better after sales service, as we have techinician to get your problems solved on the first day.

682052 3.7V 1100 mah lipo battery
1
Lithium Polymer Battery Cell
2
Protection Circuit (PCM/BMS)
3
Positive Wire
4
Negative Wire

Drop us A Messege

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Frequently Asked Questions

Q: We just started our business, and we want a small batch, can you do that?

A: for orders less then 10k units, please use our stock models, contact us to ask for a stock list

Q: Where are you shipping from?

A: We are shipping from shenzhen, China

Q: How do we place an sample order?
A: Please kindly send us your battery requirement
1 battery discharging current
2 battery capacity
3 battery dimension
4 potential bulk order quantity
and we will find the most suitable solution for you, you can then pay us by PayPal or Credit card.

Q: What is your MOQ?
A: 100 PCS per SKU.

Q: What’s the delivery time?
A: The delivery time is 7-15 days after your payment.
Below is timeline for your refrencer

USA: 5-8 days
EU/UK: 7-10 days
AU/New Zealand: 5-8 days
Canada: 15days
Japan/Korea/Singapore/Malaysia: 3-4 days

Q: How would the batteries be shipped?
A: We ship via UPS, DHL, FedEx for urgent orders, and most of our clients would choose to ship by air and local Fedex or UPS to save cost .

Q: Can we get some Lithium Polymer Battery samples for test?
A: Sure, Lipo Battery Samples are always available for you, but the sample cost and freight cost should be paid.

Q: How to proceed with an order?
A. Firstly let us know your requirements or application. Secondly, We quote according to your requirements or our suggestions.Thirdly customer confirms the samples and places a deposit for formal order. Fourthly We arrange the production.

Q: How do we make the payment?
A: We accept T/T, Western Union, PayPal, if you prefer other payment, please contact us.

Q: Can I track my Lipo Battery order shipment?
A: Yes, we will send you the tracking No. after your batteries shipped.

Q: Can you make customized lipo battery?
A: Yes, we can custom lipo battery as per your design. Mainly like follows
1 Custom battery dimension
2 Custom battery capacity
3 Custom battery discharging current(up to 150C)
4 Custom battery PCM, like NTC or other features
5 Custom battery discharging temerature as lower as -60°C
6 Custom battery shape, like Curved Lipo Battery, Round Lipo Battery,Polygonal Lipo Battery, Triangle Lipo Battery, Rectangle Lipo Battery, Hexagon Lipo Battery ,C Shape Lipo Battery D Shape Lipo Battery

Q:Is it OK to print my logo on the product?
A.
Yes. Please inform us formally before our production and confirm the design firstly based on our sample.

Q: Is there any warranty or after-sales service?
A: 15 months warranty against defective lipo batteries,starting from shipping date.

Q: Can you explain more on how would you warranty your Lipo Battery?
A: For each shipment, we have SN or production number with it, once defective within 15 months, we will send new replacement or refund for the defective part.