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Enerkey 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS 2S For Battery Pack
Enerkey 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS 2S For Battery Pack
Enerkey 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS 2S For Battery Pack
Enerkey 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS 2S For Battery Pack
Enerkey 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS 2S For Battery Pack
Enerkey 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS 2S For Battery Pack
Enerkey 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS 2S For Battery Pack
Enerkey 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS 2S For Battery Pack
Specifications
Brand Name :
Enerkey
Model Number :
EK-B2S20AS
Certification :
ISO9001/CE/ROHS
Place of Origin :
Shenzhen, China
MOQ :
10pieces
Price :
$1.35-$1.55
Payment Terms :
L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability :
1000000pcs per day
Delivery Time :
1-3days
Packaging Details :
Strong paper box +EVA Foam
Product Name :
2S 20A Lithium Battery BMS(Small board)
Copper Thickness :
2oz
Application :
Industrial energy storage system
Board Thickness :
1.6mm
PCB Layer :
2 layer
Allowable Operating Voltage Range :
0-8.4V
Rated Discharge Currenturrent :
20A
Peak Starting Current :
100A
Used For :
Lithium Battery Protection Board
Keywords :
2S BMS
Base Material :
FR-4
Surface Finishing :
Lead-free spray tin
Product Size :
L46xW20xT4mm
Weight with Package :
0.01kg
Description

Product Description

Applicable scope: Suitable for lithium batteries with nominal voltage of 3.7V and full voltage of 4.2V (including 18650, 26650, polymer lithium batteries, without limitation on the dimensions)


Product Size: 46*20*4mm
Charging voltage: 8.4V - 9.0V
Continuous discharge current (upper limit): 20A


Standard Edition: Suitable for starting drills with currents up to 25A below 50W, or resistive loads below 168W.
Note 1: The successful start of power drill requires two 10C-20C power batteries, or four 5C-10C power batteries (ordinary 18650 can not start drill! ! !); 0V and 8.4V cable, use 2 square mm Above copper wire (cannot use nickel plate!!!)
Note 2: Connect 0V, 4.2V, 8.4V according to the diagram strictly. When connecting the battery for the first time, it needs to be charged before output.
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. For some customers with poor electronic foundation, please explain: Do not mix good batteries and bad batteries together! The capacity/internal resistance of 2 batteries should be as close as possible! (1 good battery + 1 bad battery = 2 battery use effect)

Enerkey 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS 2S For Battery Pack

Enerkey 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS 2S For Battery Pack

Enerkey 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS 2S For Battery Pack

Enerkey 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS 2S For Battery Pack

Enerkey 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS 2S For Battery Pack

Technical Parameters

Enerkey Lithium Battery Protection Board (BMS) 2S 20A 30A 7.4V 8.4V For Photovoltaic Solar Panels and Industrial Power & Home Energy Storage System and Electric Car and Scooter and Motorcycle
Product model

EK-B2S20AS

 EK-B2S20AM

EK-B2S30AM
Suitable battery strings
2S
 2S
2S
Product size(mm) L46xW20xT4 L52xW22xT3.6 L58xW22xT4
Weight with box 0.01kg 0.012kg 0.014kg
Rated discharge current Typ 20A Typ 20A Typ 30A
Peak starting current Typ 100A Typ 100A Typ 100A
Over current protection current Typ 50A Typ 50A Min 80A/Typ 90A
Max 100A
Specical function 100A high peak starting current power tool
Suitable battery type Lithium(NCM)
Rated working voltage B+B- Max 8.4V
P+P- input withstand voltage
Max 33V
Charging overcurrent protection value
Not limited
Charge detection voltage Min 4.225V / Typ 4.28V / Max 4.305V
Charge detection delay time
Min 0.5S / Typ 1S / Max 1.5S
Overcharge release voltage
Min 4.03V / Typ 4.05V / Max 4.13V

Discharge detection voltage
Min 2.17V / Typ 2.25V / Max 2.33V
Discharge detection delay time Min 20ms / Typ 100ms / Max 150ms
Discharge release voltage Min 2.8V / Typ 2.95V / Max 3.05V
Conditions for lifting protection
Disconnect external load or charge self-recovery
Overcurrent detection voltage Typ 0.1V Min 0.175V / Typ 0.2V
Max 0.225V
Overcurrent protection time Typ 100MS Min 5S / Typ 10S
Max 15S
Conditions for lifting protection Disconnect external load or charge self-recovery
Short circuit protection current Typ 100A Min 45A/Typ 50A
Max 55A
Detection delay time Typ 250μS Min 150μS/Typ 250μS
Max 400μS
Conditions for lifting protection Disconnect external load or charge self-recovery
Main circuit on-state resistance Typ 5mΩ / Max 9mΩ Typ 2mΩ / Max 2.5mΩ
Normal working current consumption Typ 5μA / Max 9μA
Current consumption during sleep Max 0.1μA
Operating Temperature
-40℃ ~ +85℃

Size $ Packing List

Enerkey 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS 2S For Battery Pack

Wire Diagram

Enerkey 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS 2S For Battery Pack

Wiring precautions:
1. Installing the protective board requires a certain amount of technical electronic knowledge.
2. When wiring, first connect the B- wire at the soldering pad position to the total negative terminal of the battery (the B- wire should be soldered to a short and thick wire) and solder the wired terminal to the battery pack first, and then insert the protective plate.
3. The connection between the battery terminal B- and the protection board terminal B- should be short and thick, otherwise it will cause the protection board to charge and discharge in advance and malfunction.

4. You need to use thick wires when wiring P+/P-. Wires that are too thin and too long will burn the board!

FAQ

Q1. Why did we choose you?

* We can provide you with efficient after-sales service, with more than 10 years of strong technical support.

* Products have passed FCC, CE, ROHS and other international standards certification.

* We can provide you with factory price, Welcome you to visit our factory and production process.

Q2. What is your product range (type)?

*We mainly do battery management systems in the fields of power batteries, energy storage batteries and consumer batteries.

*Mainly used for LFP, Li-ino and LTO batteries.

Q3: How do I know which kind of material & type my battery is ?

*Please look the battery body, If the normal voltage of your battery shows 3.2V, The battery is LiFePo4.

*If the normal voltage of your battery shows 3.6V or 3.7V, the battery is Li-ion or Lto battery.

Q4. Do you have minimum order requirements?

Can it be customized? What is the lead time for samples and batches?

*Our minimum order quantity is 1 piece, ODM customization is available.

* 1~3 days delivery of existing samples, 3~10 days delivery of customized samples.

Q5: What if i can't use it?

*Regular products have instructional videos, We can also support online video call guidance from engineers.

Q6. What are your terms of payment?

*We accept wire transfer and cash payment, all negotiable. Payment method :visa, mastercard, T/T, PayPal, APPLE_PAY, GOOGLE_PAY, GC_REAL_TIME_BANK_TRANSFER, RMB

Q7. How do you guarantee the quality?

* All our products are subjected to professional laboratory 100% testing, as well as repeated aging tests.

* Obtained FCC, CE, ROHS and other international standard certification.

* Provide 3 years after-sales warranty service. Free spare units for replace in 3 years.

Q8. How to choose a BMS suitable for our battery?

*Depending on the voltage and current that matches your battery, you can consult our customer service and we will provide it for you equipped with the most suitable battery management system.

Q9. How can i contact you?

*We have 7x24 hours online service, Please leave us a message online.

*You can also contact us by Email, WhatsApp, WeChat, etc(see below). We are so glad to work with you.

Noted: We are source manufacturer, We have own brand for "EnerKey",We can customized product as your requirement(Voltage, Wire,Etc) .
We can provide you competitive price in the market if you have bulk order, Please don't hesitate to contact us.
Mobile & WhatsApp & Wechat: +86 15387469240; Email: kiwi@enerkey.cn
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Enerkey 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS 2S For Battery Pack

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Product Detail
Brand Name :
Enerkey
Model Number :
EK-B2S20AS
Certification :
ISO9001/CE/ROHS
Place of Origin :
Shenzhen, China
MOQ :
10pieces
Price :
$1.35-$1.55
Contact Supplier
Enerkey 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS 2S For Battery Pack
Enerkey 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS 2S For Battery Pack
Enerkey 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS 2S For Battery Pack
Enerkey 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS 2S For Battery Pack

Shenzhen Juyi Science And Trade Co., Ltd.

Verified Supplier
2 Years
shenzhen
Since 2015
Business Type :
Manufacturer
Main Products :
Battery BMS Board, Active Balancer BMS, Smart Active Balancer
Total Annual :
10000000-50000000
Employee Number :
100~200
Certification Level :
Verified Supplier
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