Product Description
Smart Compatible Strings
One BMS for All
30-120A
4-8/8-17/8-24S
Li-ion/LiFePO4/LTO
Applicable to Various 4~24S Universal
Li-battery PACKs No Stocking Pressure
Automatically identifies pack series
number upon BMS activation Built-in Bluetooth
(only on first power-on) Smart APP
Arbitrary Parallel Connection
Safe Capacity Expansion
Professional high current resistance
Automatic cell voltage
differential balancing
Customizable RS485
One-line communication protocol
Customizable 2/3/4-Wheel
Communication Protocols
Functional Features
Applicable to Various Li-Battery PACKs
It is suitable for large-cell battery packs, cylindrical cell battery packs, and soft-pack cell battery packs, meeting a variety of power and energy storage scenarios.
4~24S Intelligent Series/Series Capacity, Reducing Inventory
Ternary Lithium 4-8 S 7-17 S 7-20 S | Lithium Iron Phosphate 4-8 S 8-17 S 8-24 S | Lithium Titanate 6-8 S 10-17 S 10-24 S |
Automatic Packet Number Recognition Upon
Protection Board Activation
Automatic recognition of pack number only upon initial power-on.
Built-in Bluetooth + Smart APP
Real-time monitoring of battery information such as charge level, voltage, current, power, charge/discharge status, and warnings;
battery parameters can be set according to actual needs.
Exquisite Craftsmanship,
Professional High-Current Resistance
Carefully selected components, strong overcurrent protection, low temperature rise, quality assurance.
Multi-Channel Communication,Flexible Expansion
Expandable to display screens, Wi-Fi modules, GPS, etc.
RS485 communication interface with inverter protocol (customized).
RS485 communication interface with electric vehicle controllers (customized).
BMS + GPS (4G)/
WiFi/Bluetooth module
Base station 4G network WiFi router Mobile APP
Cloud server
Cloud platform
Smart Cloud Platform,,Efficient Remote Management
Expanding with Wi-Fi or GPS modules allows login to the cloud platform for remote batch intelligent management of lithium batteries. Lithium battery data is stored in the cloud, with multi-level sub-accounts.
3-inch Display 3-inch Display 3-inch Display
Screen (Snap-on) Screen (Standard) Screen (Handle)
Round Battery Light Board 4.3-inch Touchscreen
Software Square Single-Line For accessory options
Light Board Display Screen contact customer service.
Multiple Display Accessories,Customizable Options
Suitable for various application scenarios, including a 4.3-inch touchscreen, a 3-inch display screen, and a display light board.
Lower Power Consumption, Saving Battery Energy
Operating power consumption ≤10mA,
Sleep power consumption < 600uA.
Note: The above function demonstration uses the YK protection board as an example.
The above data are laboratory room temperature test results and are for reference only.
PACKs Any Parallel,Safe Battery Expansion
The BMS integrates parallel protection to prevent high currentimpact when battery,packs are connected in parallel.
Application
Electric Bicycles Electric Two-Wheelers Electric Tricycles Low-Speed Four-Wheelers Mobile Power Supplies
Agvs Rv Energy Storage Golf Carts Electric Forklifts More Scenarios
Product parameters
Model Specifications
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Model | Y Series - YH | Y Series - YK | Y Series - YM |
Current | 30/40/60A | 80/100/120A | 150A/200A |
Size | 101*65.5*14.2mm | 130*65.5*14.2mm | 180*92.4*17.2mm |
B-P- | 10AWG 100mm | 7AWG 150mm(80A) | 2AWG 200mm |
Flat Cable | 450mm(4-8S) | 550mm | 550mm |
Cells and Series Number
Battery Type | String number range | Charging voltage |
Electrical and Functional
Operating Temperature: -40~85℃ | Passive Balancing Current: 100±30mA |
Operating Power Consumption: ≤10mA | Single Cell Voltage Sampling Range: 1.5~4.9V |
Sleep Current: <600uA | Standard Communication: UART |
Sleep Time: 3600S | Customizable Communication: RS485, One-Wire Protocol |
Number of Temperature Controllers: 1 (2 channels) | Parallel Current Limiting: Integrated 1A Parallel Current Limiting Module |
Upper Computer: Supports parameter viewing/setting on Windows PC | |
Bluetooth Function: Built-in Bluetooth, compatible with Android, iOS, Huawei Android APP and Mini Program for parameter viewing/setting | |
Expandable Accessories: Display screen, WiFi module, GPS module, buzzer, parallel module, heating module, key switch, etc. | |
Protection Functions: Overcharge protection, over-discharge protection, overcurrent protection, high-temperature protection, low-temperature protection, ESD protection, pre-charge protection, disconnection protection, short-circuit protection | |
The above data are laboratory test results at room temperature, for reference only.
Installation Guide
Simple Installation in a Few Steps
1.Soldering the Sampling Cable: Start by connecting the thin black wire to the battery B- (total negative terminal). Connect the second wire to the positive terminal of the first cell string, and then connect the next wire to the positive terminal of each subsequent cell string. Finally, solder the B+ wire to the last cell string (total positive terminal).
Note: Do not insert the protection board while soldering the sampling wire. Please solder according to the actual number of cell strings. Extra sampling wires do not need to be soldered (please insulate any extra sampling wires).
2.Voltage Test: Use a multimeter or wiring sequence tester to measure the voltage of each pin of the ribbon cable to ensure it is within the normal range. If abnormal, check for incorrect connections, cold solder joints, false solder joints, or missing solder joints.
3.Connect Output Cables: Secure the B- connector (thick blue wire) and P- connector (thick black wire) to the corresponding B- and P- nuts on the protection board using screws. A torque of 10 N·m is recommended. Solder the B- wire to the battery's negative terminal.
Note: Ensure proper insulation of the P- wire when soldering the B- wire; disconnect it only when connecting to the output terminal.
4.Connect Temperature Control Wire and Ribbon Cable: Connect the temperature control wire, then insert the sampling ribbon cable into the protection board. The protection board will automatically activate.
4-8 S Wiring Diagram
Load Charger
B+ Wire
B+ Main Positive Terminal B- Main Negative Terminal
7-17 S Wiring Diagram
Load Charger
B+ Wire
B+ Main Positive Terminal B- Main Negative Terminal
7-24 S Wiring Diagram
Load Charger
B+ Wire
B+ Main Positive Terminal B- Main Negative Terminal
Packing List
1.Box 2.Protection Board 3.Instruction Manual | 4.DIO Interface Cable (300mm) 5.B-P - Output Cable * 6.Temperature Controller * 1 (2 channels) | 7.Sampling Cable 8.Screws 9.B+ Wire |
Note: The illustration uses the YK series 4~8S protection board as an example;
other series are similar.YH series (30A~60A) integrates the B-P - output cable;
output cable and screws are not included.
Brand Strength
Experienced IoT R&D Team Supports Personalized Software and Hardware Customization IPD R&D System 4 R&D Centers 100+ Patent Certifications IPD R&D Engineers Customizable APP/Mini Program/Host Computer/Cloud Platform, etc. (Functional logic, UI interaction, brand logo, etc.) Customizable GPS (4G)/Bluetooth/WIFI software and hardware Personalized function customization, appearance and structure customization, brand logo customization |
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| Strong technical reserves Always adhering to technological innovation as the core driving force, possessing eight R&D centers, bringing together 100 experts from the fields of electronics, software, communications, and structure. Multiple R&D engineers have obtained nearly 100 patents for technologies such as injection waterproofing and high thermal conductivity control boards. | Intelligent Manufacturing Creates Quality With a 20,000㎡ intelligent production base, the annual output of various types of protective boards exceeds 20 million units, with a daily capacity of up to 60,000 units, ensuring timely product supply. |
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Company Strength and Certifications
10+ Years of Innovation, High-Quality BMS Experts
Cumulative Investment of 500 Million+ RMB in Innovation and R&D
4 R&D Centers, 100+ Engineers, IPD R&D, 102 Patents & Certifications, ISO9001 Certification
Global Sales, Core Strength
Exported to 130+ Countries and Regions
20 Million+ Units Annual Production Capacity
20,000㎡ Smart Manufacturing Workshop
International Authoritative Certifications
Factory Direct Sales, High-Quality, Efficient Logistics
One-Year Warranty Factory Direct Sales Strict Quality Control
