Product Description
Hardware "Little Red Board"
Stable Performance, Super Durable
3-24S | 15~200A | Ternary Lithium/Lithium Iron Phosphate
Comprehensive Functionality, Impressive Performance
Waterproof, Shockproof,
Anti-oxidation
Long Lifespan Due to Solid and Durable Materials
Injection Coating Process
Automatic Voltage
Balancing (Passive)
Lower Power Consumption Lower Temperature Rise
Operating Current [uA]
Standard Temperature Simple Installation,
Control (NTC) Across the Series Easy Wiring
Professional High Current Resistance
(M Series 200A Example)
Functional Features
Patented Waterproof, Impressive Performance.
Industry-first, Injection molding process
Waterproof, shockproof, and oxidation-resistant;
even splashes of water won't cause problems.
The illustration shows an example of the K series 100A product.
Patented thick copper PCB
Excellent high-current resistance
Upgraded MOS
Ultra-low internal resistance, high-efficiency overcurrent protection;
Lower temperature rise during continuous overcurrent.
*Note: Only the M series (150A/200A) protection board uses a thick copper PCB.
Hardcore basic protection,
Making lithium batteries truly powerful
Effectively protects the battery cell, ensuring lithium battery safety.
Craftsmanship, superior performance
High-quality materials, durable construction.
Carefully selected components, solid materials, and guaranteed quality.
Note: The illustrated product is an example of the M series 150A and is for reference only.
Lower energy consumption, energy-saving.
High-efficiency power supply.
Operating current <400uA. Energy saving is paramount.
Note: The product shown is an example of the K series 60A and is for reference only.
Lower temperature rise
Safer and more efficient.
Low internal resistance components, low heat generation,
advanced thermal design, and efficient heat conduction.
*The above diagram is an example of the K series 100A;
data is obtained from laboratory room temperature testing.
Overcharge protection Over-discharge protection Overcurrent protection Short circuit protection
Waterproof protection Shockproof protection Temperature control protection Static electricity protection
Application
Suitable for large single-cell battery packs, cylindrical cell battery packs,
and pouch cell battery packs, meeting various power and energy storage needs.
Electric Bicycles Electric Electric Tricycles Power Banks AGVs
Two-Wheeled Vehicles
Marine Energy Storage Golf Carts Electric Forklifts Cleaning Vehicles RV Energy Storage
Product parameters
Hardware "Little Red Board"
Series | G Series | H Series | K Series | M Series |
Electricity | 15A/20A | 40A/60A | 40A/60A/100A | 150A / 200A |
Number of Strings | 3-13S | 3-16S | 3-24S | 3-24S |
Size | 34*59*9mm | 48*75*14mm | 65*123*14mm | 66*164*21mm |
B-P- | 16AWG 100mm | 10AWG 160mm | 10AWG 100mm | 4AWG 150mm |
Flat Cable | 24AWG Length subject to actual product | |||
Number of Strings | Ternary: 3~20S / LiFePO4:4~24S | |||
Note: Please contact customer service for customization if other specifications are required.
Charging Voltage (V) | Ternary = 4.2 * number of series; LiFePO4: = 3.65 * number of series | ||||||||
Series Model | G | H | K | M | |||||
Charging Current (A) | 15 | 20 | 40 | 60 | 40 | 60 | 100 | 150 | 200 |
Charging Overcurrent Protection Value (A) | 20±3 | 25±3 | 56±10 | 70±10A | 50±10 | 70±10 | 106±20 | 400±30 | 400±30 |
Discharging Current (A) | 15 | 20 | 40 | 60 | 40 | 60 | 100 | 150 | 200 |
Discharging Overcurrent Protection Value (A) | 50±10 | 60±10 | 138±30 | 180±30A | 125±10 | 175±10 | 256±20 | 300±20 | 400±30 |
Main Circuit On-Circuit Resistance (mΩ) | <20 | ||||||||
Operating Current (uA) | <400 | ||||||||
Passive equalization | Short circuit protection | ||
Start-up voltage (V) | Ternary: 4.075~4.175 | Protection condition | External load short circuit |
Start-up condition | Reaching the set equalization start-up voltage | Protection delay (µS) | 10~500 (actual value based on customer battery returned to our company for testing) |
Equalization current (mA) | Ternary: 75±25/100±25 LiFePO4:70" ±25 | Protection release | Remove load or plug in charger to resolve |
Single cell overcharge protection | Single cell over-discharge protection | ||
Protection voltage (V) | Ternary: 4.25±0.05 LiFePO4:3.65±0.05 | Protection condition | Ternary: 2.7±0.05/2.8±0.05 LiFePO4:2.3±0.05 |
Protection delay (S) | 1±0.5 | Protection delay (µS) | 1±0.5 |
Recovery voltage (V) | Ternary: 4.15±0.05/4.10±0.05 LiFePO4:3.55±0.05/3.50±0.05 | Recovery voltage (V) | Ternary: 2.8±0.05/3.0±0.05 LiFePO4:2.3±0.05/2.7±0.05 |
Charging temperature protection | Discharge temperature protection | ||
High temperature (°C) | 55 | High temperature (°C) | 75 |
Low temperature (°C) | -20 | Low temperature (°C) | -40 |
* The above data are laboratory room temperature test results and are for reference only.
Installation
Simple steps to complete the installation.
Motor , etc. Sampling cable Load
Total positive terminal B+
Charger
Last string
Third string
Battery pack
Second string
First string
Total negative terminal B-
Wiring diagram shown for K series, other series are similar.
Step 1: Soldering the ribbon cables
Connect the first ribbon cable (black wire) to the total
negative terminal of the battery,Connect the second
ribbon cable (red wire) to the positive terminal of the
first string of batteries,Connect the third ribbon cable
(red wire) to the positive terminal of the second string
of batteries... and so on,
until all ribbon cables are connected;
Note: Do not insert the ribbon cables into the protection board during the soldering process.
Step 2: Check the ribbon cable.
After connecting the ribbon cable, measure the voltage between adjacent ribbon cables, starting from the connector, to confirm that the wiring sequence is correct and there are no issues such as incorrect or missing connections.
A test board or wiring sequencer
is more convenient if available.
Multimeter
Test Board Wiring Sequencer
Step 3: Connect the output wires.
Connect the B- wire of the protection
board to the battery's negative
terminal. Then connect the
temperature control wire and
sampling ribbon cable to the
protection board. The protection
board will automatically activate. After activation, confirm that the voltages before the board (battery voltages B+, B-) and after the board (P+, P-) are consistent.
Step 4: Connect the charger and load.
Connect the P- wire of the protection board to the charger and the motor's negative terminal. Connect the lithium battery's positive terminal to the charger and the load's positive terminal.
*Wiring tutorial uses the K-series 8-series as an example; other specifications are similar.
Packaging List
"Little Red Board" 1.Temperature control cable (H series integrated NTC) 2.Packaging box 3.B-P-output cable (K/M series included) 4.Protection board 5.Instruction manual (style subject to actual product) 6.Sampling cable Note: The packaging list is an example of the K series protection board; other specifications are similar. |
|
RS485 cable UART cable WIFI module Bluetooth Round power indicator board
CAN box Active balancing Square power 3-inch 4.3-inch
module indicator board display screen touchscreen
Company Introduction
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
20,000m² Intelligent
Production Workshop,
Leading the Way in
Advanced Intelligent
Manufacturing
13+ Intelligent Automated
Production Lines,
Pursuing High Quality
and Efficiency
20 Million (Sets) Strong
Annual Production Capacity,
Timely Product Supply
Professional R&D Team
IPD R&D System
4 Major R&D Centers
Advanced Testing Equipment
Comprehensive Testing
Equipment
Perfected Testing Process
Reliable Verification System
Mechanical Performance
Verification
Electronic Performance
Verification
Intelligent Warehousing, High Speed
Relying on the integration of multiple technologies such as IoT, cloud computing, and AI, hundreds of robots are efficiently coordinated to easily handle massive orders.
Delivery Speed Delivery Accuracy Storage Density
