Защитная плата BMS 4S 40A 18650 для зарядки литий-ионных и литиевых аккумуляторов двигателя перфоратора 14 8 в 16 литий-полимерная


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Цена:3,68 $*

Количество:



Описание и отзывы


Трекер стоимости

Месяц Минимальная цена Макс. стоимость
Aug-16-2025 4.79 $* 4.74 $*
Jul-16-2025 3.2 $* 3.23 $*
Jun-16-2025 4.60 $* 4.63 $*
May-16-2025 4.90 $* 4.35 $*
Apr-16-2025 3.33 $* 3.21 $*
Mar-16-2025 4.73 $* 4.4 $*
Feb-16-2025 4.44 $* 4.42 $*
Jan-16-2025 4.87 $* 4.33 $*

Характеристики



Tips


The Heltec Automation is Research&Development enterprise.And we have reliable cooperation factories.


we not only provide Self-developed products with high quality,but also provide a serise of  customized  solution about IoT.


Welcome to know more our Enterorise&Products and cooperate with us.


 





Product Description


 


 



if you meet any problem on the BMS board,Pls download the instructon first :http://pan.baidu.com/s/1XnW_P4RACjWhG5VbTNgStA 


it may solve your problem.


Now this 4S 40A balance version has upgrade to new !


1, increased anti-interference function,

2, reduce the large current heat by 30%,

3, starting power increased from 135W to 220W (4S40A)

 

 

Integrated 10 low load resistance MOS tube, continuous discharge 40A, 100mA balanced current, for electric drill/sprayer/ LED lights/low power inverter.

 

4S 16.8V 40A lithium battery protection board (comes with recovery function-AUTO Recovery)

 

 

Charging voltage: 16.8V - 18.1V

 

 

Continuous charge current (upper limit): 20A

 

Board Size: 46*60*3.4mm

 

Continuous discharge current (upper limit): 40A (if the cooling environment is not good, please reduce the load current use)

 

Scope: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, polymer lithium battery)

 

Note:this item is  Balanced version .If you need other Version,please contact us.The 2 version price is different

 

 

 

Standard version: for starting current below 60A, power 100W below the drill.(Not balanced function) 


 

Balanced version: suitable for starting current below 80A, power 135W below the drill.(with balance)


 


 


Note 1: The successful start of the electric drill requires four 15C-20C power batteries, or eight 10C-15C power batteries (ordinary 18650 can not start drill! ! !).

 

Note 2: Connect 0V, 4.2V, 8.4V, 12.6V, and 16.8V in strict accordance with the diagram. Do not intentionally short circuit.

 

 

Note 3: When the battery is charged, “430” resistance heating is a normal phenomenon, indicating that the equalizing circuit is working; if the “430” resistance is also heating in the state of not charging, please check whether the wrong line is connected.

 

Note 4: 4 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use in series. The The Discharge test, the voltage drop faster battery that group is poor battery.

 

 

Package:

 

1* 4S 4A Balance Version Protection Board


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Company Profile


Chengdu Heltec Automation Technology Co., Ltd. ( English abbreviation Heltec Automation). At present, The company's research and development and production include OLED dot matrix screen, electronic ink screen, IoT series products, LoRa supporting solutions and high-precision temperature controllers with automatic control algorithms as the core.


At present, there is a strong technical research and development team, a scientific production and manufacturing platform and a quality management system with strict quality and quality.


Advatage:


Stable performance, cost-effective products, high-quality and superior service, our products have not only gained a good reputation in the country, but also received high-quality evaluation in France, Germany, Russia, the United States, South Korea and other countries.


 





























1Rigorous quality assurance system
2High level of service awareness
3High quality team
4Components use well-known brands
5Quick response customer program
6Self-owned processing plant, rapid production,equipped with automatic SMT placement machine, automatic screen printing machine and reflow oven

Experience:

























Development Team6 Years
Sales5 Years
Production3Years
Supporting Plan3 Years
International Market2 Years 

 


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