About 1199340 results:
Rechargeable Batteries (51776) , Storage Batteries (224065) , Battery Packs (19138) , Auto Batteries (100934) , Primary & Dry Batteries (9037)

lifepo4 12v 40ah lithium battery

FOB Price: US $50 - 80 / Piece | Get Latest Price
Min.Order Quantity: 50 Piece/Pieces
Supply Ability: 50000 Piece/Pieces per Month
Port: shenzhen
Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram
Add to My Favorites

Quick Details

Place of Origin:
Guangdong, China (Mainland), China
Brand Name:
Model Number:
Nominal Voltage:
Nominal Capacity:
Battery type:
12v battery lifepo4 12v 40ah lithium battery / 12v 40ah battery
Max charge voltage:
standard charge method:
cut-off voltage:
nominal voltage:
cycle life:
0 V charge:
brand name:

Packaging & Delivery

Packaging Details: 90-400pcs for each box Size of box: 280mm x 228mm x 263mm Weight of each box is less than 10Kg
Delivery Detail: 12 days


1) high current and energy
2) cycle life 2000 times
3) short lead time
4) outstanding quality


  lifepo4 12v 40ah lithium battery / 12v 40ah battery


1. Long cycle life for more than 2000 times

2. High specific energy 

3. Good performance at high temperature 

4. Low impedance

5. Lower self-discharge

6. Suit for big current discharge

7. High reliable and safety characteristics

8. Strong charging acceptance and

    quick-charging capability

9. Environmental Friendly

10. Large capacity and good shock resistance

1. Rated Capacity:                                      40000mAh ( 0.2C )

2. Nominal Voltage:                                     12.8V ( operation voltage )

3. Voltage at end of Discharge:                    10.0 ( discharge cut off voltage )

4. Charging Voltage:                                   16.8V

5. Internal Impedance:                               <8mΩ ( AC 1KHz)

6. Standard Charge:                                    CC/CV ( charge time: approx 4.0h )

7. Standard Discharge:                                0.2C ( cut off voltage 10.0V )

8. Max Continuous Charge Current:               1.0C

9. Max Continuous Discharge Current:            1.0C



Electric bicycle, Golf car, Electric wheelchair, Power tools, Scooter, UPS, Solar & Wind energy

storage system, EV ...




Information for Safety


! Notice

1. Handling of cells

— Don't charge the cells and keep them in a charged state for a long time. ( Display units 

    should dismantle the battery )

— Avoid any short-circuit. It will cause the leads to get hot and lose electronic functions.

— Soft package is easily damaged by sharp objects such as needles and knives. Avoid touching

    the cells with sharp objects when handling and storing.

— Next to the leads is the sealed edge. Don’t bend or fold the sealing edge as it is sensitive to


— Don’t open the folded edge on the sides of the cell.

— Don’t bend the tabs as the tabs are sensitive.

— Avoid mechanical shock to the cells.

— Don’t put the cells into an oven, washing machine or any high-voltage container.

— Don’t use a charger without a safety certification. Use only a recommended charger.

— You should immediately stop charging if the cell overheats, emits an odor, changes color,

    changes shape, etc.

— Battery should be storage away from children.

— Adults should supervise the use of batteries by children.

— Before using batteries, please carefully read and understand the handling guidelines.

— Avoid electro-static discharge when using, charging, and storing cells.

— Avoid putting the battery in contact with metal conductors such as neck chains, barrettes, or

    bolts, etc.

— Don’t use metal conductors to connect the positive and negative leads together.

— Avoid errors during assembly by contacting the positive lead with the negative lead.

— Avoid use cell with serious deformation.

— Do not directly solder the pack or battery and pierce the battery with a nail or other sharp 


2. Notice for Designing Battery Pack

—  Package Design

    — The battery pack should have sufficient strength and the battery should be protected

        from mechanical shock.

    — No sharp objects should be inside the pack containing the battery.

— PCM Design

     — The overcharge threshold voltage should be less than 3.65V (single pack).

     — The over-discharge threshold voltage should not be lower than 2.0V (single pack).

     — The PCM should have short circuit protection.

3. Notice for Assembling Battery Pack

— Tab connection

    — Ultrasonic welding or spot welding is recommended to connect the battery with the PCM

        or other parts.

    — If the tab is to be soldered to the PCM, the instructions below are very important to

        ensure battery performance.


        — The solder iron should be temperature controlled and ESD safe. 

        — Soldering temperature should not exceed 350±10°C.


        — Soldering time should not be longer than 3 seconds.


        — Soldering times should not be fewer than 5.


        — Let the battery tab cool down before soldering again.


        — Direct heat to the cell body is strictly prohibited. The battery will be damaged by

            heat above approx. 60°C.

— Cell fixing 

     — The cell should be fixed to the battery pack by its large surface area.

    — The should be no sharp edges at the assembly contact area.

     — Cells must be held firmly in the battery pack; movement is not allowed.


! Others 

— Disassembly may cause an internal short circuit to the cell, which may cause out-gassing,

    fire, or other problems.

— Lithium ion battery should not have liquid flowing, but in case the electrolyte come into

    contact with the skin, or eyes, physicians, we recommend as below:

    — The electrolyte touch eyes: Flush the electrolyte immediately with fresh water for 15min.

        and medical advice is to be sought.

    — The electrolyte touch skin: Flush the electrolyte immediately with a great deal of fresh


    — Breath the released gas: Go outside to breath flash air.

    — Mis-eaten: Go to take some medical advice.

— Prohibition of dumping of cells into fire.

— The cells should never be soaked with liquids such as water, drinks or oil.

— Prohibit using the cells mixed with different manufactories. Prohibit using new cells mixed 

    with old ones.

— Prohibit using damaged cells. 


! Recommended Notice

— Using cells on specified facilities only.

— Using cells in normal ambition temperature. Temperature: -10~35°c, Relative Humidity:


— Using the cells, away from heat source. Don't let children play with cells. Don't drop cells.

    Charge cells with specified charger.

— Avoid the positive pole short cutting with the negative one. Avoid the cells affected with


— Useless cells should be deal with in a safety way. Don't drop them into the water or fire.

Not exactly what you want? 1 request,multiple quotations Get Quotations Now >>
Our company specializes in high-energy lithium batteries. Our company insists on providing complete power solutions using our own exclusive technology. Our engineering staff team composes of highly experienced electric chemical experts who develop batteries and capacitor technologies that are able to supply long life, excellent pulse current performance. Our products are used by many companies, from wireless sensor, remote control to RFID, data logger to AMR.

With new energy develop... View detail

Basic Information

Business Type: Manufacturer  
Main Products: Lithium Thionyl Chloride battery,Li-ion battery,Li-polymer battery,LiFe battery,supercapacitor  
Number Of Employees: 51 - 100 People  

Trade & Market

Main Markets: North America
Western Europe
Domestic Market
Eastern Europe
Southeast Asia
Mid East
Northern Europe
South America
Southern Europe
Total Annual Sales Volume: US$2.5 Million - US$5 Million  
Export Percentage: 81% - 90%  

Factory Information

Factory Size (Sq.meters): 1,000-3,000 square meters  
Factory Location: 3/F, Building C, Xintian Innovation Industrial Park, Guanlan Street, Baoan District, Shenzhen  
No. of Production Lines: 2  
Number of R&D Staff: 5 - 10 People  
Number of QC Staff: 5 - 10 People  
Contract Manufacturing: OEM Service Offered  

Supplier Assessment Report

Supplier Assessment Reports are detailed on-line reports about the supplier's capabilities. It helps you get all the information you need to trade confidently with suppliers.

Send your message to this supplier

How It Works

China (Mainland) | Contact Details
Experience: Established 2010 , 3 years OEM

Communicate with Supplier:

Mr. William Liu
Mr. William Liu:
What can I do for you?
Not exactly what you want?
1 request,multiple quotations Get Quotations Now >>