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4S 12.8V 20A Lithium Iron Phosphate Battery Protection Board High Precision Voltage Detection Board Lithium Battery Protection Module

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Product Introduction:
1.Charging Voltage:DC 14.4V CC/CV
2.Single Current Consumption:<=8uA
3.Max Continuous Discharging Current:20A
4.Overcharging Detection Voltage:3.75V,precision <=+/-0.025V
5.Overcharging Detection Delay Time:1.2s
6.Overcharging Release Voltage:3.6V,precision <=+/-0.025V
7.Overdischarging Detection Voltage:2.1V,precision <=+/-0.05V
8.Overdischarging Detection Delay Time:144ms
9.Overdischarging Restore Voltage:2.3V,precision <=+/-0.05V
10.Overcurrent Detection Voltage:197mV,precision <=+/-15mV
11.Overcurrent Detection Current:51.5A,precision <=+/-3.5A
12.Overcurrent Detection Delay Time:9ms
13.Overcurrent Restore State:auto restore
14.Short Circuit Detection State:external short circuit
15.Short Circuit Delay Time:<=320us
16.Short Circuit Restore State:auto restore
17.Internal Resistance:<=4M ohm (MOSPET)
18.Operating Temperature Range:-40~85 celsius
19.Storage Temperature Range:-40~125 celsius
21.Application:4S lithium iron phosphate chargeable battery pack

1.High precision voltage detection function
2.3-phase overcurrent detection function
3.MOS tube can control battery charging/discharging
4.Wide Operating Temperature Range:-40~85 celsius
5.Low power consumption current

Soldering Point Introduction:
1.B4+:connect with battery pack positive
2.B3+:connect with the connection point between battery 1 and battery 2
3.B2+:connect with the connection point between battery 2 and battery 3
4.B1+:connect with the connection point between battery 3 and battery 4
5.B-:connect with the battery pack negative
6.B4+:connect with charge/discharge port positive (charging port and discharging port are commonly used)
7.P-:connect with charge/discharge port negative (charging port and discharging port are commonly used)

1.Please pay attention to the using conditions of input/output voltage,load current so that the power
  consumption within the board won't be over the tolerance power consumption.
2.When the module connects with battery and cannot charge,connect to charge can let it work normally.
3.When overcharging battery and overdischarging battery are mixed up and become charge state and
  overdischarge state,and it cannot charge or discharge.
4.Please don't exert too high static on the board,or it get damaged.


Tested by ICStation's Outstanding Partner zxDTSxz:

Install the Protection Board together with the Batteries:

Be installed in the Black Box:

Used with the Electric drill:

Learn More Details in the Video:

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First we should say that ICStation doesn't accept any form of pay on delivery.Items used to be shipped after receiving the order info and payment.

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For the receiver info, please contact us at orders@icstation.com.
3) Bank Transfer / Wire Transfer / T/T

Bank Transfer / Wire Transfer / T/T payment methods are accepted for orders which the total price is up to US$500. The bank will charge about US$60 for the transfer fee if we do the payment in these ways. 

For other payment method, please contact us at orders@icstation.com for more details.

1. Hongkong / Sinapore Airmail

(1) Due to the high risk of package lost recently, we have to stop using the free shipping way these days. Hope for your kind understanding! And the $3 is for tracking number and delivery insurance ^0^ Enjoy order from us. 

Free Shipping for all orders over $20 ^0^ (with free tracking number and delivery insurance fee)

(2) Shipping time 
Shipping time is 7-20 business days to most of countries; please view below table for exactly shipping time to your location. 

7-15 working days to: Most of Asia countries
10-16 working days to: USA , Canada , Australia , UK , Most of Europe countries
13-20 working days to: Germany , Russia
18-25 working days to: France , Italy , Spain , South Africa
20-45 working days to: Brazil , Most of South America countries

2. EMS/DHL/UPS Express

(1)Shipping Fee: Free for the order which meet the following requirements
Total price of the order >= 200USD or Total weight of the order >= 2.2KG

When the order meets to one of the above requirement, it will be shipped for FREE via EMS/DHL/UPS Express to below country. 
Asia: Japan , South Korea , Mongolia . Malaysia , Singapore , Thailand , Vietnam , Cambodia , Indonesia , Philippines 
Oceania: Australia , New Zealand , Papua New Guinea 
Europe& America: Belgium, Britain, Denmark, Finland, Greece, Ireland, Italy, Luxembourg, Malta, Norway, Portugal, Switzerland, Germany, Sweden, France, Spain, USA, Austria, Canada
Note: Shipping Fee to other countries, please contact orders@ICStation.com

(2) Shipping Time
Shipping time is 3-5 working day (about 1 week) to most of countries. 

Because the package would be returned to the sender if it had not been signed by the receiver in 2-3 day (DHL) or 1 week (EMS,) or 2 weeks (Registered Email), please pay attention to the arriving time of the package. 


1) APO and PO Box Addresses

We strongly recommend that you provide a physical address for order delivery. 
Because that DHL and FedEx are unable to deliver items to APO or PO BOX addresses. 
2) Contact Phone Number
Receivers' contact phone number is required by express shipping agency for the package delivery. Please provide us with your latest phone number.

3. Note
1) Delivery Time of mixed orders with items in different Shipping Status should be calculated using the longest estimate times listed. 
2) Chinese Holiday Reminder: During annual Chinese holidays, services from certain suppliers and carriers may be affected, and delivery for orders placed around the following times may be delayed by 3 - 7 days: Chinese New Year; Chinese National Day,etc. 
3) Once your order is shipped, you will receive an email notification from icstation.com
4) Track the order which with tracking number via below links:

Registered Airmail: www.17track.net/en

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4S 12.8V 20A Lithium Iron Phosphate Battery Protection Board High Precision Voltage Detection Board Lithium Battery Protection Module