5S 18V and 21V lithium ion battery protection circuit board PCB and BMS with 20A constant discharge current

$13.20

This is The PCB for 5series Lithium ion battery with 20A constant working current

Dimension : L*W*H= Max 55*50*8mm

Features and characteristics :

1) With highly precision degree of detecting each cell's voltage ;

2) With three phases over-current detectiong functions .

3) It will manage the discharge and charge through the MOSFET

4) Wide working temperature scope from -40-85 degree

5) Low self power consumption :

9998 in stock

Description

breif instruction
This is The PCB for 5series Lithium ion battery with 20A constant working current

Dimension : L*W*H= Max 55*50*8mm

Features and characteristics :

1) With highly precision degree of detecting each cell’s voltage ;

2) With three phases over-current detectiong functions .

3) It will manage the discharge and charge through the MOSFET

4) Wide working temperature scope from -40-85 degree

5) Low self power consumption :

Item Content Specification
Voltage Charging voltage DC 21V CC/CV
Balance voltage with single cell 4.185±50mV
Current Balance current for single cell 80mA± 10mA
Current consumption with single cell less than 15 uA
Max constant charge current 20A
Max constant Discharge current 20A
Over-charge Protection Over-charge detection votlage 4.25V± 0.025V
Over-charge detection delay times 0.8-1S
Over-charge release voltage 4.15± 0.05V
Over-Discharge Protection Over-Discharge detection votlage 2.8V±0.08V
Over-Discharge detection delay times 10~300mS
Over-charge release voltage 3.0± 0.01V
Over-Current Protection Over-Current detection votlage 0.6V
Over-Current detection current 40±5A
Over-Current detection delay time 5~20mS
Over-Current release condition Load off
Short circuit protection Detection condition External short
Release condition Load off
Temperature Operating temperature range -40~85 degree
Storage temperature range -40~125 degree
Dimension (L*W*T) 55*50*08 mm


Photo Display

Connection diagram
Connection diagram

1)Do not apply the PCB which beyonds the specified criterias as above :

2)Sometime , the battery may not discharge when connected this PCB , please connect it to the charge and it can recover to the normal

status .

3)The PCB may not work normarly When Mixing cells which were over-discharged or over-charged ,

4) Do not shock this PCB with big static even though the PCB has been designed with anti-stastic protection function.

My distinuished customers : you can contac us through trademanager or by email if you have any further questions with our product
Introduction

Please choose the shipment way as you like ,you you can consider express delivery way if your order is urgent , but you

should afford the extra freight cost by express delivery .

As post by air ,usually it takes around 20-60 days ,please notice it and do not open the disputes easily before reaching the

contact with us ,we will try our best to solve the problem with our joint efforts .

Return Policy

We guarantee the product from us with a 12 months warranty against defects in quality, but we are not responsible

for buyers’ mistake or wrong handling, our product must be maintained in proper way. If Item is defective and not working

on arrival, please report the item to us within 7 days of receiving the defective product so we can issue a RMA.

Please contact us to request a return authorization. Please include your name, auction number, and reason for return when you

contact us. All items returned must contain all original packaging materials. Please carefully repack the item. Items returned will

be tested and if found defective, the buyer will be shipped a new replacement unit immediately. In the event that a suitable

replacement is not available a refund will be issued.

The return shipment cost should be afforded by buyer if you can not accept our policy ,please do not buy the item from us ,fair deal is importable

for both of us .

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items and services.

If you have any problems with our itmes or services, please feel free to contact us first before you leave negative feedback. We will do

our best to solve any problems and provide you with the best customer services.

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