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JK 4S BMS 12V /12.8 300A LiFePo4 Lithium 2A Common Port  Balance Battery Management System 4-8S

JK 4S BMS 12V /12.8 300A LiFePo4 Lithium 2A Common Port Balance Battery Management System 4-8S

Brand:JK BMS
Product Code: JK-B2A8S30P 3S-8S
Reward Points: 210
SKU : JK 300A 4S 2A Smart
Product available in stock : 1
  • 8,492.40₺

  • Ex Tax: 7,077.00₺
  • Price in reward points: 21000
  • 100 or more 8,088.00₺
  • 10000 or more 7,279.20₺

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Tags: JK 4S, JK 12.8volt, JK300A, 12v BMS, 12.8volt BMS, 300A BMS

Taksit Tutarı
Toplam Tutar
3 x 1.638,81 TL
4.916,42 TL
6 x 878,02 TL
5.268,09 TL
9 x 630,52 TL
5.674,65 TL
12 x 512,30 TL
6.147,54 TL
Taksit Tutarı
Toplam Tutar
3 x 1.638,81 TL
4.916,42 TL
6 x 878,02 TL
5.268,09 TL
9 x 630,52 TL
5.674,65 TL
12 x 512,30 TL
6.147,54 TL
Taksit Tutarı
Toplam Tutar
3 x 1.638,81 TL
4.916,42 TL
6 x 878,02 TL
5.268,09 TL
9 x 630,52 TL
5.674,65 TL
12 x 512,30 TL
6.147,54 TL
Taksit Tutarı
Toplam Tutar
3 x 1.638,81 TL
4.916,42 TL
6 x 878,02 TL
5.268,09 TL
9 x 630,52 TL
5.674,65 TL
12 x 512,30 TL
6.147,54 TL
Taksit Tutarı
Toplam Tutar
3 x 1.638,81 TL
4.916,42 TL
6 x 878,02 TL
5.268,09 TL
9 x 630,52 TL
5.674,65 TL
12 x 512,30 TL
6.147,54 TL
Taksit Tutarı
Toplam Tutar
3 x 1.638,81 TL
4.916,42 TL
6 x 878,02 TL
5.268,09 TL
9 x 630,52 TL
5.674,65 TL
12 x 512,30 TL
6.147,54 TL
Taksit Tutarı
Toplam Tutar
3 x 1.638,81 TL
4.916,42 TL
6 x 878,02 TL
5.268,09 TL
9 x 630,52 TL
5.674,65 TL
12 x 512,30 TL
6.147,54 TL
Taksit Tutarı
Toplam Tutar
3 x 1.638,81 TL
4.916,42 TL
6 x 878,02 TL
5.268,09 TL
9 x 630,52 TL
5.674,65 TL
12 x 512,30 TL
6.147,54 TL
Taksit Tutarı
Toplam Tutar
3 x 1.638,81 TL
4.916,42 TL
6 x 878,02 TL
5.268,09 TL
9 x 630,52 TL
5.674,65 TL
12 x 512,30 TL
6.147,54 TL
A c t i v e - B a l a n c e r from Chengdu Jikong technology co., LTD.
Chengdu Jikong technology co., LTD. Provides quality warranty for the hardware products and accessories sold by our company. The warranty period is as shown above. During the warranty period, the company shall have the right to choose to repair or replace the whole set of products after receiving the notice of the product failure and verification. The whole set of replacement productsmay be new or close to new.
1. Chengdu jikong technology co., ltd. guarantees that the products are fully tested.
2. Chengdu jikong technology co., LTD does not guarantee that the products
can be used without interruption during the product repair process.
However, the company shall ensure that faulty products are repaired within a reasonable time.
3. The warranty period starts from the date of product delivery or the date of installation by chengdu jikong technology co., LTD. If the company's products are not installed within 30 days after the date of shipment due to the user's schedule or delay, the All our produced Lithium battery BMS, we guarantee 3 years warranty in quality, if the damageiscaused by human improper operation, we will conduct repair with charge warranty period of the products shall be calculated from the 31st day after
the date of shipment.
4. Chengdu jikong technology co., ltd. shall not provide free warranty for any product failure or damage caused by :(a) improper use or improper maintenance;(b) software, accessories, components or other items not provided by chengdu jikong technology co., LTD.;(c) unauthorized removal, modification and misuse;(d) use in excess of the scope specified in the technical specifications of the product;(e) improper transport, handling and storage;(f) failure or damage caused by other non-mass causes (e.g. earthquake, war, traffic accident, etc.). To the extent permitted by law, the above warranty is the only express warranty and there are no other warranties, whether written or oral. 
Lithium battery smart BMS is a management system tailored for large capacity series lithium battery packs. It has the functions of voltage collection, active balancing of large current, overcharge over-current over-temperature protection, Coulombmeter, Bluetooth communication, GPS remote and so on. It is suitable for lithium iron phosphate, lithium ternary and other battery types. 
The BMS relies on our Proprietary technology for Active Balancing. Our high current active balancing technology can ensure maximum battery consistency, improve battery life, delay Battery aging. The BMS has a companion mobile APP that supports Android V. 7 and above and IOS operating systems. The APP can connect to the BMS via Bluetooth on your mobile phone to check the battery working status and to modify the working parameters of the BMS, control the charging, discharging switches, and so on. The BMS is small in size, simple to operate and full of functions, that can be widely used in battery PACK of small sightseeing cars, walkers, shared cars, high-power storage, base station backup power, solar power stations and other products.。
This is essential so that everything is reading, sending/receiving the correct Voltages @ the Battery Terminals / DC Bus (for Parallel Banks of Batteries).
 When an SCC or Inverter/Charger etc is charging @ 25.6/51.2 You need to ensure that is WHAT the Batteries See. Otherwise, the differential "will" cause a Mismatch and generate an error (*1), either at the SCC or any Charge Device on the DC Bus (*2).
 The BMS is the MOST Precise @ measuring the Battery & the Cell Voltage States. This applies to a Single Battery or a Bank of Batteries.
 Not All SCC's or Charging Devices have a Compensation/Correction setting within them. Therefore you have to do the "Math" to compensate for that differential. Therefore you "must" take Voltage Measurements @ the SCC, Charger & Battery Terminals/Bus, then make adjustments to match your desired Charge Profile to prevent such incidents.
 A Digital Multimeter / Digital Volt/Ohm Meter with at least 2 Decimal Place voltage displays is Most Highly Recommended to do so. A Single Digit device is TOO  NACCURATE for any
Lithium Based Battery or cell.
(*1) This can result in Over/Under voltage reading triggering an error. IF over or under it can also create the "Runner Cell" situation where one or more cells within a Battery can run & defeat the Working Voltage Range (3.000-3.400) of the cells, triggering a BMS Fault. This is Very Common with new/fresh
installations that are NOT Corrected & Balanced for Voltage.
(*2) Note that ALL DC-Lines will suffer some loss over the length of the wire run. These include every terminal, lug, bolt, switch, and even fuses & breakers collectively. While each individual "item" may not be large (unless there is a Fault), collectively they can add up quite quickly collectively. This is an "accuracy" requirement problem with using Lithium Based tech as opposed to Lead Acid which is more "brute force" and not as accurate due to the very Tight Voltage Curves in comparison to Lead-Acid. 
Typical Faults creating large drops, with some basic problem avoidance solutions:
 Loose or dirty connections,
 Poor or weak crimped terminals,
 Overly long wiring, including wires of Different Lengths (+) & (-) should be as close to identical lengths as possible,
 Low-Grade or Incorrect wiring used for the application, load & demands,
 Quality wires (Fine Strand Pure Copper) tinned or not, along with Tinned Terminal lugs is always the best solution,
 All Connections to Lugs etc should be shrink wrapped with quality adhesive bound Shrink
Wrap to prevent air/moisture infiltration over time that can cause corrosion & deterioration. Do NOT avoid using long enough shrink wrap. 
Final Important Note:
It is extremely important to not that various devices like Solar Charge Controllers, Inverter/Chargers etc all have varying hardware, firmware and user interface software. This makes Calibration & Configuration more demanding for proper operations between all the variety of device.
Expressly disclaims any implied warranty or commercial terms
1. The BMS is a professional accessory. Many operating errors will result in product damage, so please follow the instructions manual or wiring video tutorial for compliance operation.
2. Strictly forbidden to reversely connect the B- and P- cables of the BMS,forbidden to confuse wiring.
3.Li-ion, LiFePO4 and LTO BMS are not universal and incompatible, mixed use is strictly prohibited.
4.BMS only be used on battery packs with the same strings.
5.It is strictly forbidden to use the BMS for over-current situation and unreasonably configure the BMS. Please consult customer service if you don't know how to choose  he BMS correctly.
6. Standard BMS are prohibited from being used in series or in parallel connection. Please consult customer service for details if it is necessary to use in parallel or series connection.
7. Forbidden to disassemble the BMS without permission during use. The BMS does not enjoy the warranty policy after privately dismantling.
8. Our BMS has waterproof function. Because of these pins are metal, forbidden to soak in water to avoid oxidation damage.
9. Lithium battery pack needs to be equipped with dedicated lithium battery charger, other chargers cannot be mixed to avoid voltage instability etc. lead to the breakdown  f the MOS tube.
10.Strictly forbidden to revise the special parameters of Smart BMS without permission. Pls contact customer service if you need to modify it. After-sales service cannot be provided if the BMS was be damaged or locked due to unauthorized parameters modification.
11. The use scenarios of the DALY BMS include: Electric two-wheeled bicycle, forklifts, tourist vehicles, E-tricycles, low speed Four-wheeler, RV energy storage, photovoltaic energy storage, home and outdoor energy storage and etc. If the BMS needs to be used in special conditions or purposes, as well as customized parameters or functions, please consult customer service in advance.
12. After receiving the prototype confirmation, please return it in time. There is no return and problemfeedbackwithin 7 days. Our default customer test is qualified;
13. The picture in the book is a general-purpose model picture, which may be different fromthe sample deliverymachine. This specification book reaches the final interpretation right of Lithium Electronics. 2. Before the customer batches, please sign and return in the specification, and explain the detailedfunctiondescription.
Attention Items
1.Lithium batery BMS with different voltage platform can not be used mutaully, eg., Life Po4BMScan not be used for Li-ion battery.
2.In utilization, please to make sure to Follow up the designed parameter and utilization conditions.
3.Charge and discharge current can not be higher than the quoted current value in specification.
4.Please to utilize the BMS in the the regulated working temperature range, and make sureofthewell heat dissipation environment.
5.No self taking off and change parts in BMS.
6.Our product has the function of waterproof, but still suggest avoid of long time water immersion.
7.We conduct Anode Oxidation process in BMS dissipation plate, but when the Oxidationlayerdestroid, it stll may electricity conductive, it is stll suggest to avoid Dissipation plate contact withCell and Nickel band.
8.If the protection board is abnormal, please stop using it, and then solve the problemanduseitagain;
9.Do not use two protective plates in series or in parallel.
How BMS Connect
1.The sequence of the protective board connection battery wiring:
Special attention: The wire cable of different manufacturers are not same standard, please make sure to use he- matching cables; the colors of B- and P- lines of different manufacturers are different, please pay attention to the B- and P- marks.
1. Remember!!! When welding sampling wire cable, do not insert the cable into the BMS.
2.The cable connects the total negative electrode B-from the fine black line. The second wire (red wire) is connected to the positive pole of the first string of batteries.Connect the positive electrode of each string of batteries in turn until the last wire cable of the total positive B+.

JK 4S 12V 300A BMS
Features

Benefits
Bidirectional active balance technology
Active Balancer,Wireless Transmission
Extremely empty battery management
Function Safety Four core technologies
international safety standard iso26262 


Companion mobile app for easy
Capacity Managment data analysis 
Lithium ternary , lithium iron phosphate
BMS Voltage Range
BMS Current Range
BMS Cell Range
6V-1000V
1A-800A
2s-48S

HS Code GTIP :8536300000

  Chengdu Jikong Technology Co., Ltd. is an enterprise focusing on the research and development of power battery management system. As the "leader of lithium battery active equalization technology", Chengdu Jikong technology has mastered the four core technologies of the world's leading power battery management system: active equalization, wireless transmission, functional safety and capacity management. Adhering to the business philosophy of "pursuing the perfection of products, helping the cause of environmental protection and harvesting a beautiful sky", extreme space technology has written a new chapter in the electric vehicle industry and contributed its own strength to the cause of environmental protection!

JKBMS has professional Battery BMS/Battery Balancer/Battery monitors engineer team to desing high quality series BMS/Balancer/Monitors support Bluetooth/RS485/Wifi/RS232/TTL232/CANBUS for different application. Custom developments are welcome to contact our sales team and engineer team.

JK BMS held a professional BMS engineer team have more than 10 years experience in the electronics/battery BMS field, strength to design and produce the most inavative and high quality active battery balancer and active balancer BMS for li-ion,lifepo4, NMC, Ni-MH,Ni-Cd, Lead acid batteries, red-flow batteries, VRLA and AGM batteries,etc.. The JK balancer and BMS are using active balancing technology which is not wasted but redistributed within the battery. Since there is no waste heat like passive balancing, cooling for this is no longer necessary. With comparable performance less space is required. The optimally balanced battery increases the service life considerably.

Our professionals are always at your service if you require technical support, software activation for one of our products, or if you are missing some documents, like a user manual.

A lithium battery smart BMS, designed for big capacity series lithium battery packs, is a management system that provides a range of features, including voltage collection, active large current balancing, overcharge, overcurrent, overtemperature protection, Coulombmeter, Bluetooth connectivity, GPS remote, and more. Our BD6A24S12P Active Balancer BMS offers a range of benefits, including high current active balancing technology, maximum battery consistency, longer battery life, and delayed battery aging.

Key Features

1.Active balance function, balance cell differential pressure without energy loss, improve the battery's efficiency by 95%. 

2.It can be used for 8~20S ternary lithium, lithium cobalt acid, manganese acid, and lifepo4 pack. 

3.The continuous operating current is 200A, and the active equalization current is adjustable from 0.1-0.6A. 

4.With over charge, over discharge, over current, short circuit protection functions. 

5.Single voltage range 1~5V, accuracy ±5mv. 

6.With the function of the coulomb meter, the remaining power at a glance 

7.Bluetooth communication function, equipped with app, can real-time check the battery status. 

8.Provides RS485 and CAN communication interface. 

9.GPS remote positioning module Optional.

Applications

-Solar power stations

-Walkers

-Shared cars

-High-power storage

-Base station backup power

-Tiny sightseeing automobiles

-Use of environmental conditions

a) Operating temperature range: -30 ° C ~ 70 ° C;

b) Power requirements: 20~100V.

c) Power consumption: Equilibrium state 8mA@100V, unbalanced state 7mA@100V

Package includes:

1*JIKONG SMART BMS AS YOUR CHOICE(Built-in Bluetooth)

1*Balance Cable

1*Temperature Sensor

1*Power Switch 

1*User Manual

1*RS485 Module (need buy from the accessories link)

1*2.0 power display(need buy from the accessories link)

1*4.3inch LCD touch display(need buy from the accessories link)

Active Balancing Technology

Our proprietary technology is used in the  JK-BD2A8S20P Active Balancer BMS for active balancing, which enables a range of benefits. With maximum battery consistency, you can be confident that your battery will perform at its best, providing you with dependable power when you need it. Longer battery life is also possible thanks to our advanced technology, which helps to delay battery aging.

Mobile App Compatibility

The  JK-BD2A8S30P Active Balancer BMS features a companion mobile app that works with iOS and Android versions 7 and higher. The mobile app provides Bluetooth connectivity, allowing you to operate the charging and discharging switches, check the battery’s operational state, and make changes to the BMS’s operating settings. Small in size, easy to use, and packed with features, the BD6A24S12P Active Balancer BMS is ideal for a range of products, including solar power stations, walkers, shared cars, high-power storage, base station backup power, and tiny sightseeing automobiles.

Technical Specifications

The  JK-BD2A8S30P Active Balancer BMS has a working voltage of 20~100V, making it suitable for a range of applications. With advanced features and cutting-edge technology, the BD6A24S12P Active Balancer BMS is the ideal choice for those looking for a high-quality lithium battery management system.

When it comes to managing large capacity series lithium battery packs, the BD6A24S10P Active Balancer BMS is the ideal solution. This lithium battery smart BMS offers a range of features, including voltage collection, active large current balancing, overcharge, overcurrent, overtemperature protection, Coulombmeter, Bluetooth connectivity, GPS remote, and more. It’s suitable for use with various battery types, including lithium ternary, lithium iron phosphate, and others.

Our BMS uses proprietary technology for active balancing. This means you can enjoy maximum battery consistency, longer battery life, and delayed battery aging, thanks to our high current active balancing technology.

The BMS also comes with a companion mobile app that works with iOS and Android versions 7 and higher. You can establish a Bluetooth connection between your phone and the BMS, allowing you to operate the charging and discharging switches, check the battery’s operational state, and adjust the BMS’s operating settings. The BMS is small in size, easy to use, and packed with features, making it ideal for use in many battery packs for various products, including solar power stations, walkers, shared cars, high-power storage, base station backup power, and tiny sightseeing automobiles.

Main Technical Parameters

The JK-BD2A8S20P has a working voltage range of 20~100V, making it compatible with a wide range of devices and applications.


Li-ion3S~8S
Lifepo44S-8S
LTO6S~8S
Balance wayActive Balance
Active balance current2A
MOSFET0.3mΩ
Continuous discharge current300A
Peak discharge current450A
Over current protection10A-300A adjustable
out cablewaysame port
single cell voltage scale1-5V
Voltage accuracy±3mV
Over charge protection voltage1.2V-4.35V adjustable
Over charge protection release1.2V-4.55V adjustable
Over current protection release time2S-120S adjustable
Over discharge protection voltage1.2V-4.35V adjustable
Over discharge protection release1.2V-4.35V adjustable
Temp sensor quantity3
Short circuit protectionYES
BT functionSupport Android and IOS
GPS remote controlSupport
Other communication portRS485/CAN (customize)
Size153*136*18mm




BMS Electrical Specification
BMS Type LiFePo4
BMS Number of Serial Cell 4s
BMS Discharge Current Amper 200
BMS System Voltage 12
BMS Max DesCharge Current Amper 400
BMS Charge Voltage Max 12.8
Inner Resistance 0.47mΩ
BMS Charge Current Amper 200
BMS Charge Cut Voltage 3.65
BMS Over Charge Coltage 3.75
BMS Over Charge Protection 1sn
BMS Balance Detect Voltage 3.5V
BMS Balance Current mA 2000
BMS Over Discharge Voltage 2.7
BMS Over Discharge Delay 1sn
BMS Short Circuit Detect Delay 320µS
BMS Self ConsuptionCurrent 100µA
BMS Sleeping consuption Current 20µA
BMS Communication Yes
BMS Bluetooth Yes
BMS Supported Inverter 8s-24s ,Goodwe, Growatt, Deye, Sofar, Srne, Pylon, Victron Energy, Voltronic Power, Sma, Must.
BMS Mechanical Specification
BMS Operation Temperature -30ºC~70ºC
BMS Dimension 132x102x17mm
BMS Weight gr 257
BMS Standarts
BMS Certificate ISO 19001 EN 55032-2015, EN 55024:2010/A1:2015/EN61000-3-2:2014/EN 61000-3-3:2013/

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