BMS para protecção Baterias 18650 4S 14.8V~16.8V 40A (com balanceador)

: BAT04019
4,47 €

Este BMS para protecção de células de Lítio de 3.7V, como por exemplo as vulgares 18650, tem a capacidade de balancear e proteger contra sobrecargas e sub descargas o conjunto de 4 células em série.

A corrente máxima de descarga permitida em contínuo é de 40A e a tensão máxima de carga é de 4.2V por cada célula, o que perfaz um total de 16.8V no conjunto.

A corrente máxima de carga é de 20A e tensão deverá ser entre 17~18Vdc. Este é a versão "Balance" também conhecido como "equalizing/balanced plate"

Quantidade

DESCRIÇÃO EM PORTUGUÊS BREVEMENTE DISPONÍVEL

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*Atenção: as imagens são meramente ilustrativas.

Introduction 
This is a 4 cell BMS for 14.8Vdc Lithium battery pack with 16.8Vdc max charge voltage and 40A max discharge current.
  • Charging voltage: DC 16.8V~18.1V
  • Continuous discharge current: 40A maximum (if the heat dissipation environment is not good, please reduce the load current)
  • Continuous charging current: up to 20A
  • Balance Version Product size: 45x60x4mm
  • Applicable choice: applicable to the nominal voltage of 3.7V, fully charged 4.2V lithium battery           (including 18650, 26650, polymer lithium battery), can be drilled below 170W

 

Note 1: For drill aplications, the successful start of the drill requires three 15C-20C power battery, or six 10C-15C power battery (ordinary 18650 can not start the drill!!).

Note 2: strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V, do not deliberately short circuit.

Note 3: When the load of the brush motor is used, try to connect a non-polar capacitor (withstand voltage above 25V, capacity 10uF-100uF) to the motor's positive and negative terminals to prevent the reverse spike from the motor. Break the MOS tube.

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 Discharge test, the voltage drop faster battery that group is poor battery.

The figure below shows the module discharge diagram. The battery is 4 cells. The connected battery needs to meet the 40A discharge current. It can be realized by paralleling the battery or purchasing a battery with a large discharge current. For example, the battery 2000mAH, the discharge multiple 10C, then only need 4 series 2 and the maximum current can reach the discharge current 40A, stable discharge requires 4 strings 4 and can be, and need to pay attention to heat dissipation, the discharge battery power will drop rapidly.
 
Balance Version:

Discharging Test



The picture below shows the battery charging diagram, 4 series of batteries, the actual full charge, voltage 16.8V, charging voltage DC17V-18V, charging current depends on the battery connected, the maximum does not exceed 20A.
 
Balance Version:

Balance Example

BAT04019

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