Product Description
K Series Software Protection Board
3~24 Serial Batteries | 40/60/100A | Ternary Lithium/Lithium Iron Phosphate
Born Powerful, Comprehensive Upgrade
Smarter APP/Host Computer/Cloud Management
More Waterproof Patented Injection Coating + Upgraded Connector Technology
Arbitrary Parallel Connection Supports Safe Battery Pack Expansion | Smaller Size
Lower Temperature Rise
Less Power Consumption |
DIO Custom Port
Buzzer Heating Module PC Host Computer
4.3-inch Touchscreen
KEY: Key Switch
3-inch Display Screen, etc.
485 Cable CAN Box
UART Cable Bluetooth
PC Host Computer
Functions Same as UART-2
4.3-inch Touchscreen
3-inch Display Screen, etc.
APP
GPS/4G Cloud Manager
Battery Rental Remote Lithium
& Swapping GPS Module (4G) WIFI Module Battery Management
SOC
Voltage
Electric current
Temperature
Give an alarm
Cycle number
Self-developed APP
Smart and convenient
"SMART BMS"APP,your personal lithium battery steward installed in mobile phone, supports various data visible at a glance.
Support IOS and Android systems
Support 7 languages:Automatically switch with the system language
Support local remote monitoring:"Bluetooth or WIFI module needs to be connected to the BMS to use the APP; WiFi module needs to be connected to the BMS to achieve remote monitoring(WIFI module needs to be purchased separately).
Upgraded PC software
Efficient management
With the communication cable (UART/RS485/CAN) connected to the PC, the upgraded version of the PC software open more management rights to the user, which supports setting hierarchical management; And the speed of program upgrade of the BMS through the computer is also significantly improved.
Cloud — Lithium Battery IoT Platform
The official IoT platform provides remote and batch intelligent management of BMS. Battery data is saved in the cloud. Multi-level sub-accounts can be opened and the BMS can be remotely upgraded through the APP + Cloud.
BMS must be connected to the Bluetooth module/ WiFi module/ 4G module, so that data can be uploaded to cloud server through the mobile APP or router.
6 Amazing Upgrades
More Waterproof Lower Power Consumption Upgraded Injection Coating Sleep Current <550uA+ Connector Process Operating Current <15mA | Smarter View, read, set, save, share, and remotely control battery parameters via APP/Host Computer/Cloud Management. |
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APP Host Computer Cloud Management |
Smaller More Efficient More Space-Saving 100mA Passive Balancing + Easy Installation | Arbitrary Parallel Connection Supports Safe Battery Pack Expansion |
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The power consumption display in the image above uses a 100A protection board as an example.
The data above are laboratory room temperature test results.
Transfer data over the Internet
Lithium cloud platform
Method 1 : 4G network 4G network
Base station
Method 2 : WiFi network Internet WiFi router
BMS +4G/WiFi/
Bluetooth module Cloud serve
Achieving remote upgrade of BMS
Method 3 : Bluetooth signal transmits data Mobile phone connect to the Internet
Mobile APP and data will be automatically uploaded
8 Basic Protections
Overcharge protection Waterproof protection
Over-discharge protection Shock protection
Overcurrent protection Temperature control protection
Short circuit protection Electrostatic discharge protection
Multiple Protections
Comprehensive Backup
Supports arbitrary parallel connection
of battery packs for safe capacity expansion
The protection board integrates parallel protection function to avoid high current surges when battery packs are connected in parallel.
Pre-charge
Load
Enables Easy Load Startup
High-power pre-charge effectively avoids false triggering of protection
due to high current at startup, preventing multiple unsuccessful power-on attempts.
Passive Balancing Module
100mA Passive Balancing
Extends Lithium Battery Life
Compared to the conventional 30mA passive balancing of the protection board,balancing efficiency is improved by more than 3 times.
*The above data are laboratory room temperature
test results and are for reference only.
Battery Pack Temperature Protection
Preventing Safety Hazards
Early temperature warning and timely power disconnection effectively prevent battery fires and other hazards.
Advanced thermal design
Stable, Reliable And Trustworthy
Low Temperature Rise
Low internal resistance components and advanced thermal
design create good current flow performance.
Sleep mode current < 500uA
Working current < 15mA
Low Power Consumption
Sleep mode current < 500uA,
working current < 15mA,
good performance in energy saving.
Note: The above data are the room temperature test results of laboratory and are for reference only.
Ultra-High Precision
High-end MCU chip, voltage detection accuracy ±10~15mV,
Short circuit protection 10~500uS, SOC error <5%.
Note: The above data are the normal temperature test results of laboratory.
Advanced Technology High-End Configuration Moisture-proof,anti-vibration,anti-oxidation National patented plastic injection technology improves the protective performance of BMS |
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| Large storage space It can massively store 400pcs of historical information (512Kb),including protection times,currenttotal voltage,current,temperature,SOC,etc.,andanother 4Gb large memory can be customized. |
Indicator light Bright LED lights display the fourworking states of BMS in real time. Working condition 1:Shutdown,poweroutage,sleep mode:light off. Working condition 2:During working,discharge status:light flashes,on for 0.5s,off for 2.5s,3s a cycle. Working condition 3:During working,charging status:light flashes,on for 0.5s,off for 0.5s,1s a cycle. Working condition 4:During working,no charging and discharging:light flashes,on for 0.5s,off for 9.5s,10s a cycle. |
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| Snap-on plug Sampling cables and communication wires usesnap-on plugs,which can be tightly connectedto BMS and not easy to fall off,also make communication stable. |
Small size,easy to install Smaller size,saving installation space. |
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Product parameters
Rated discharge voltage (V) | Li-ion:N(Battery string)*4.2V | ||
Charging current (A) | 40 | 60 | 100 |
Discharge overcurrent protection value (A) | 60 | 90 | 150 |
Charging current (A) | 40 | 60 | 100 |
Charge overcurrent protection value (A) | 60 | 90 | 150 |
Main circuit on-resistance (mΩ) | <20 | ||
Passive equalization function (100±30mA) | Short circuit protection | ||
Equalization turn-on voltage (V): | Li-ion:4.0 LiFePO4:3.4 (Can be set up) | Short circuit protection conditions: | External load short circuit |
Equalize opening differential pressure (mV): | 20 (Can be set up) | Short circuit protection delay(uS): | 10~500 The actual test is subject to the customer’s battery sent back to our company for testing |
Balance current (mA): | Li-ion:100±15 LiFePO4:100±30 | Short circuit protection released: | Remove load release |
Single Cell over-charge protection | Single Cell over-discharge protection | ||
Protection voltage(V): | Li-ion:4.25±0.05 LiFePO4:3.75±0.05 (Can be set up) | Protection voltage(V): | Li-ion:2.7±0.05 LiFePO4:2.2±0.05 (Can be set up) |
Protection delay(S): | 1±0.8 | Protection delay(S): | 1±0.8 |
Recovery voltage(V): | Li-ion:4.15±0.05 LiFePO4:3.65±0.05 | Recovery voltage(V): | Li-ion:2.8±0.05 LiFePO4:2.3±0.05 |
Charge/discharge over-current protection | Temperature protection(°C) | ||
Protection delay(S): | 1±0.8 | Operating temperature(°C): | charging:-35~75 discharge:-35~75 (Can be set up) |
Release condition: | Removing the load is lifted | Storage temperature(°C): | -40~85 |
Current consumption Working current(mA):<15 Resting current(uA):<500 Sleep time(S):3600 | |||
*The above data is the temperature test results of laboratory,for reference only.
If you need customized services,please consult customer service for details
Structure Appearance,Size,etc. | Hardware NTC,Power display board,Soft Switch,Internal storage,Buzzer. | Software Mobile phone APP,PC software,communication protocol,etc. |
Application
Electric bicycles, electric two-wheelers, electric tricycles, electric wheelchairs,
AGVs, robots, portable power supplies, lead-acid to lithium conversion, rental battery swapping, etc.
Electric Bicycles Electric Vehicles Electric Tricycles
Electric Wheelchairs AGVs Robots
Portable Power Banks Lead-to-Lithium Battery Rental
Conversion & Swapping
Product Structure
Exquisite Craftsmanship, Superior Quality
Heat-dissipating aluminum alloy Silicone output wire
Main control MCU
MOS
Thermal conductive ABS
injection molding
Heat-dissipating aluminum alloy
*The above disassembly diagram is based on the K (40/60A) protection board example.
Accessories
RS485 cable UART cable CAN box Bluetooth module WIFI module
Square power Round power 4.3-inch 3-inch Active balancing
indicator board indicator board touchscreen display screen module
Installation and Wiring
Easy 3 Steps
Step 1: Soldering Ribbon Cables:
Connect the first ribbon cable (black wire) to the main negative terminal of the battery, the second ribbon cable (red wire) to the positive terminal of the first battery string, the third ribbon cable (red wire) to the positive terminal of the second battery string, and so on, until all ribbon cables are connected.
Step 2: Testing Ribbon Cables:
After connecting the ribbon cables, measure the voltage between adjacent ribbon cables, starting from the connector, to confirm that the wiring sequence is correct and there are no missing connections.
Step 3: Connecting Output Cables:
Connect the B- wire of the protection board to the main negative terminal of the battery, and then connect the sampling ribbon cable connector to the protection board. After activating the protection board, confirm that the voltage before the board (battery voltage B+, B-) and the voltage after the board (P+, P-) are consistent.
Activating the Protection Board
The protection board automatically activates upon first use. If the protection board is in sleep mode, it can be activated in four ways:
(Before activating the protection board, please ensure that the protection board, ribbon cable, and battery are correctly connected, and that the NTC is connected to the protection board.)
1. Activate via key switch.
2. Activate via button.
3. Activate via communication (485/CAN/Bluetooth communication with the APP).
4. Activate via charge/discharge.
Packaging List
①K-type Protection Board X1
②Instruction Manual X1
③B-P-Output Cable (Free) X1
④Bluetooth (Free) X1
⑤Plate Cable X1
⑥NTC X1
⑦CAN/485 5pin Cable X1
*Note: The packaging list is based on a 24S 60A protection board as an example.
Factory Strength
Deep Technological Accumulation
We consistently adhere to technological innovation as our core driving force, possessing eight R&D centers and bringing together over 100 R&D engineers from the fields of electronics, software, communications, structure, application, quality control, process, and materials. We have successively obtained nearly 100 patented technologies, including waterproof injection molding and high thermal conductivity control boards.
Strong Production Capacity
We have a 20,000m² intelligent production base with an annual output of over 10 million protection boards of various types, and a daily capacity of up to 30,000 units, ensuring timely product supply.
| Over 500 skilled workers | 13 automated production lines |
| 20,000 square meter anti-static workshop | 10,000,000+ protection boards produced annually |
Purchase Notes
1. Q: About Warranty
A: Under normal use, the product is covered by a one-year free warranty from the date of purchase. Return shipping costs are the responsibility of the customer.
2. Q: About Product Data
A: All product data, images, and statistical text in this store are derived from internal company test measurement results or reports and are for reference only. The actual product shall prevail.
