4000mAh 12.8V 45C 12v 400ah LiFePO4 Battery Portable Jump Starter Battery Pack

FULLYMAX 8068107XF 4000mAh 12.8V 45C 400A LiFePO4 battery portable battery jump starter car battery starter

Fullymax LFP Jump starter battery 35C~100C series have been mass produced in 2019. Through the integrated development of materials and formulation systems, the problem of poor low temperature performance of LFP was solved.

Support large rate discharge at - 20 ° C~- 30 ° C and 150C~250C pulse discharge for 1 second and 120C~200C pulse discharge for 2s.

The excellent high temperature resistant storage support storage at 80℃~85℃ for 48h, thickness swelling rate less than 10%, recovery rate more than 85%. Such LFP batteries are widely used in automobile jump starter, motorcycle jump starter, medical devices, etc.

Capacity&Leadtime

● Stacking/per day:50Kpcs

● Winding/per day:2,00Kpcs

● Regular Model:≤8 weeks

● Customized:16-18 weeks(The first order, if nonew facility added )

     Quality Management Syste

Safety and environmental Certificates

capability&service

• Simulation tests of safety certificates proceeded
• Service of certificates application for customers

• Electric Performance Test
• Safety Performance Test
• Mechanical Performance Test
• Environmental Performance Test
• Storing Performance Test

polymer (Li-Po) batteries.
In general, the diferences lie in the materials made of the positive & negative terminals, the area density design, the electrolyte ingredient, the septum data and the density of inside pieces.

When a Li-Po battery is made, five main aspects should be considered carefully:

(1). Battery Pack should have suficient strength, so that the polymer battery inside could be efectively protected from mechanical shocks;

(2). The polymer cell should be fixedto the battery pack onits large surface area - no cell movement in the battery packshould be allowed;

(3). No sharp edge components should be inside the packcontaining the polymer battery, and meanwhile, suficient insulation layer between wiring and the cell should be used to maintain multiple safety protection;

(4). Ultrasonic welding is recommended for polymer tab connection to obtain low-resistance, high-reliability and light-weight properties;(5). Polymer packs shouldbe designed carefully so that no shear force is applied, and also, no heat is generated even when leakage ocurs for mishaps. PCM from electrolyte leakage should be isolated as perfectly as posible, and narrow distance between bare circuit patterns should be avoided.

The generated gases include Co, CO2,H2, CH4 and so on. They are not dangerous because of low volume.

Organic solvents easily decompose on the negative electrodes during charging, leading to battery swelling, drop of cell capacity, and unsafety caused by activereaction. The purpose of the formation process is to form a solid layer called the solid electrolyte interphase (SEl), which is electrically insulating yet provides significant ionic conductivity. This interphase prevents further decomposition of the electrolyte after the second charging.