China Leading Manufacturer of li-ion battery charger
FBELE lithium ion battery charger, a brand of lithium battery charger, has many years of production and experience. Lithium batteries are exported to countries all over the world and America, with three-year warranty, good after-sales service and lifelong maintenance
- Full range of sizeli-ion battery charger
- Long life time
- FBELE famous brand,25years manufacturing experience
- Competitive price,stock ready for shipment.
What is li-ion battery charger
Lithium ion batteries have high energy weight ratio and energy volume ratio, no memory effect, repeated charging for many times, long service life and lower price. These characteristics of lithium-ion batteries promote the development of portable products to smaller and lighter, making more and more products powered by single lithium-ion batteries. Lithium ion battery charger fbele products are widely used in military industry, scientific research, resource exploration, medical instruments, ultrasonic flaw detection instruments, film and television cameras, digital communications, digital electronics, solar power stations, wireless walkie talkies and personal computers.
Why Purchase FBELE lithium ion battery charger
75 national product safety certification,for example UL TUV CUL VDE CE CCC certification
FBELE lithium ion battery charger is exquisitely made of high-quality materials, with stable performance, safety and reliability
FBELE uses high-quality materials to make li-ion battery charger, so it has a long service life
FBELE provides mold opening and customizes products according to customer drawings and samples for li-ion battery charger
working principle of li-ion battery charger
The lithium-ion battery charger is externally connected with a current limiting charging power supply and a p-channel FET, which can safely and effectively charge a single lithium-ion battery. Its biggest feature is that it can still achieve very low power dissipation without using an inductor. It adopts 8 pins μ Max package. The charging control accuracy is up to 0.75%, which can realize precharge and has the functions of overvoltage protection and temperature protection. The maximum charging time is limited to provide secondary protection for lithium-ion battery. The floating charging mode of lithium-ion battery charger can maximize the battery capacity.
When the charging power supply and battery are within the normal operating temperature range, inserting the battery will start a charging process; The condition for the end of charging is that the average pulse charging current reaches 1% of the fast charging current, or the time exceeds the preset charging time on the chip. The lithium ion battery charger can automatically detect the charging power supply and automatically turn off when there is no power supply to reduce the leakage of the battery. After starting the fast charge, open the external p-type FET. When it is detected that the battery voltage reaches the set threshold, enter the pulse charging mode. The opening time of the p-channel FET will be shorter and shorter. When the charging is completed, the LED indicator will flash in 12% cycle.
Attention for lithium-ion battery charger
It is a simple single lithium-ion battery charger, including LED display, thermistor and current reverse protection.
Adj pin is connected with internal 1.4V precision reference source through 10K Ω resistance. When adj has no resistance radj to the ground, the battery charging voltage threshold is the default value: VBR = 4.2V;
When the charging threshold needs to be set by yourself, a resistance radj with an accuracy of 1% can be indirectly connected between adj pin and GND, and the resistance value is determined by the following formula:
In the circuit, when the charging threshold is 4.1V, radj = 410k Ω is obtained from formula (1), and the resistance accuracy is 1%, the system error is:
Tsel pin connected to batt or adj or GND will get different fast charging time and complete charging time. When tsel pin is connected to batt, the fast charging time is 55 minutes, and the total charging time is 2.8 hours. When tsel is connected to adj, the fast charging time is 75 minutes, and the whole charging time is 3.75 hours. When tsel is connected to GND, the fast charging time is unlimited, and the whole charging time is 6.25 hours. The limitation of charging current can be solved by current limiting resistance.
China Leading lithium-ion battery charger Supplier
FBELE-is a company specializing in the production of power adapter, lithium battery charger, lithium electric vehicle charger, energy storage charger and other products. The company’s products have sufficient materials, durable power supply, reliable quality and support customization
FBELE is a source manufacturer specializing in lithium battery charger, lithium battery charger manufacturer, power adapter manufacturer and electric vehicle charger manufacturer. It supports customization and is supplied in large quantities from stock. The quality of the source manufacturer is excellent,
FBELE (0086-18868647636) is a manufacturing high-tech military enterprise integrating research and development, production and processing Main products: lithium battery charger | lead-acid battery charger | 18650 lithium battery charger | vehicle intelligent charger | solar charger|
What does customer say about FBELE Company
Our company has just started to import Chinese products from this year and is not very familiar with customs declaration and transportation. FBELE has taken the trouble to help us handle the import, which has solved our worries at home. Very very very good service.