Skip to main content
ALL Category
Bagisto
Login / My Cart
ROOT Electronic Components / Maker DIY 3D Printing Accessories Repair Parts Model / Hobby Parts Specialty Tools / Unique Tools Robotics / STEM Teaching Tools Industrial Small Parts Musical Instrument Accessories Cosplay / Prop Accessories Special Daily Living Tools Imported Products Packaging Snacks, Nuts & Local Specialties Personal Care, Health & Massage Equipment Luggage & Leather Goods: Best-Selling Women's & Men's Bags Women's Shoes
Home / Development Boards & Control Boards / Luban Class 5-Series 21V Makita-Style Lithium Battery Protection Board Industrial Grade Voltage/Current Adjustable Driver Development Board Electronic Module
Development Boards & Control Boards

Attributes

Brand -
Category Electronic Components / Maker DIY / Development Boards & Control Boards
Origin -
Cell Series Configuration 5S (5 Cells in Series)
Nominal Voltage 21V (18V - 21V Range)
Max Continuous Discharge 30A
Protection Features Overcharge, Overdischarge, Overcurrent, Short Circuit
Compatibility Makita-style 18V/21V Tool Batteries
Balance Function Passive Cell Balancing
Operating Temperature -20°C to 60°C
PCB Dimensions 60mm x 40mm x 5mm
Weight 25g
PCB Material FR-4 Fiberglass

5 reviews

A

Anonymous

Apr 07, 2026

Rating: 4/5

Good but instructions vague

Board works well but wiring diagram could be clearer for beginners.

A

Anonymous

Mar 30, 2026

Rating: 5/5

Solid protection

Tested the cutoff voltage, it's accurate. Good build quality for the price point.

A

Anonymous

Mar 09, 2026

Rating: 5/5

Reliable BMS

Been using it for 3 months in a custom pack. No issues with balance or cutoff.

A

Anonymous

Feb 19, 2026

Rating: 5/5

Fits Makita casing

Dimensions are spot on for the replacement shell I bought. Highly recommend.

A

Anonymous

Feb 01, 2026

Rating: 5/5

Perfect for custom packs

Works great for my DIY drill project. Soldering points are clear and easy to work with.

5 FAQ

Q: What is the idle current consumption?

A: Typically less than 50uA in storage mode.

Q: Can I use this for LiFePO4?

A: No, this is calibrated for standard Lithium-Ion voltage ranges.

Q: Does this support 18650 cells?

A: Yes, designed for 5x 18650 lithium-ion cells.

Q: Is there a balance wire included?

A: Wires are not included, you need to source your own balance leads.

Q: Does it have a temperature sensor?

A: This model does not include an NTC temperature sensor input.

Explore your interests

ESP32-S3 Core Development Board - WiFi & Bluetooth DevKitC-1 (C3, N8R2, N16R8 Modules)

ESP32-S3 Core Development Board - WiFi & Bluetooth DevKitC-1 (C3, N8R2, N16R8 Modules)

$19.24

Pulse Heart Rate Sensor Compatible Bio-Simulation Sensor Header Pins No Soldering Required

Pulse Heart Rate Sensor Compatible Bio-Simulation Sensor Header Pins No Soldering Required

$6.35

[Youxin Electronics] Soil Moisture Meter Detection Module, Soil Moisture Sensor for Intelligent Robot Cars

[Youxin Electronics] Soil Moisture Meter Detection Module, Soil Moisture Sensor for Intelligent Robot Cars

$2.09

N52 Super Strong Square Magnet, Neodymium Iron Boron Bar Magnet, Powerful Magnetic Blocks

N52 Super Strong Square Magnet, Neodymium Iron Boron Bar Magnet, Powerful Magnetic Blocks

$10.50

Instax Shutter Timer Selfie Artifact Fujifilm instax SQ Series Non-Destructive Installation

Instax Shutter Timer Selfie Artifact Fujifilm instax SQ Series Non-Destructive Installation

$58.00

New STM32 Desktop Pet Smart Dog - STM32 Development Board AI Robot Dog Electronic Kit

New STM32 Desktop Pet Smart Dog - STM32 Development Board AI Robot Dog Electronic Kit

$162.74

lalaci Round N52 Strong Magnet High Performance Powerful Small Magnet Diameter 1/2/3/4/5/6/8 Manufacturer NdFeB

lalaci Round N52 Strong Magnet High Performance Powerful Small Magnet Diameter 1/2/3/4/5/6/8 Manufacturer NdFeB

$3.25

Car Vibrator/Piezoelectric Vibration Sensor Motorcycle Anti-Theft Alarm Vibration Sensor Module Ceramic Plate

Car Vibrator/Piezoelectric Vibration Sensor Motorcycle Anti-Theft Alarm Vibration Sensor Module Ceramic Plate

$13.00

N52 Strong Magnet Small Round Mini Powerful Tiny Magnet High-Performance Neodymium Iron Boron Super Strong Magnet Steel 2-8mm

N52 Strong Magnet Small Round Mini Powerful Tiny Magnet High-Performance Neodymium Iron Boron Super Strong Magnet Steel 2-8mm

$5.50

Natural Cinnabar Rose Beads, Purple Gold Sand 'Blooming Prosperity' DIY Bracelet and Ring Accessories, Buddhist Prayer Bead Charms

Natural Cinnabar Rose Beads, Purple Gold Sand 'Blooming Prosperity' DIY Bracelet and Ring Accessories, Buddhist Prayer Bead Charms

$1.30

Strong Magnet with Hole Square Magnet Block High-Performance Neodymium Iron Boron Countersunk Hole Magnet Steel Magnet Stone Patch

Strong Magnet with Hole Square Magnet Block High-Performance Neodymium Iron Boron Countersunk Hole Magnet Steel Magnet Stone Patch

$0.50

New Stainless Steel Solder Wire Lighter Usable High Purity Tin Wire Universal Welding Tool Soldering Wire

New Stainless Steel Solder Wire Lighter Usable High Purity Tin Wire Universal Welding Tool Soldering Wire

$2.90

New Industrial Iron Picker Iron Sucker Magnetic Quick Magnetic Rod G Parts Manual Magnet Nail Sweeper Simple

New Industrial Iron Picker Iron Sucker Magnetic Quick Magnetic Rod G Parts Manual Magnet Nail Sweeper Simple

$386.24

YwRobot Color LCD Display Module for Arduino with TF Card Slot IPS Screen ST7789

YwRobot Color LCD Display Module for Arduino with TF Card Slot IPS Screen ST7789

$22.00

Genuine ARDUINO MEGA 2560 R3 A000067 ATmega2560 Development Board Module

Genuine ARDUINO MEGA 2560 R3 A000067 ATmega2560 Development Board Module

$221.50

M03 M04 Water Level Detection Module Sensor, Green Non-Contact Liquid Level Touch Switch

M03 M04 Water Level Detection Module Sensor, Green Non-Contact Liquid Level Touch Switch

$1.15

MQ-8 Hydrogen Gas Sensor Module

MQ-8 Hydrogen Gas Sensor Module

$7.73

MAX30100/MAX30102 Blood Oxygen Heart Rate Wrist Pulse Detection Monitoring Biosensor Module

MAX30100/MAX30102 Blood Oxygen Heart Rate Wrist Pulse Detection Monitoring Biosensor Module

$5.39

300 SMT Component Soldering Kit High-Intensity Practice Board PCB Skills Competition TJ-56-273

300 SMT Component Soldering Kit High-Intensity Practice Board PCB Skills Competition TJ-56-273

$42.40

Kunlun Coast Industrial Wide-Temperature Transmitter Split Type Temperature and Humidity Sensor JWSK-6

Kunlun Coast Industrial Wide-Temperature Transmitter Split Type Temperature and Humidity Sensor JWSK-6

$100.00

View More
All Categories
Best Seller (30)
New List (30)
Strawberry Planting Trough PVC 3D with Built-in Drainage Greenhouse Soilless Cultivation Equipment Vertical Growing Rack

Strawberry Planting Trough PVC 3D with Built-in Drainage Greenhouse Soilless Cultivation Equipment Vertical Growing Rack

$13.60

Baohong Watercolor Sketchbook - Glued on Four Sides, 32K/16K/8K, 200g/300g Cotton Pulp Paper for Postcards, Travel Sketching, and Oil Pastels

Baohong Watercolor Sketchbook - Glued on Four Sides, 32K/16K/8K, 200g/300g Cotton Pulp Paper for Postcards, Travel Sketching, and Oil Pastels

$20.00

Kitchen Sink Storage Rack Multi-Function Dish Drying Shelf Over-Sink Organizer Bowl Cabinet

Kitchen Sink Storage Rack Multi-Function Dish Drying Shelf Over-Sink Organizer Bowl Cabinet

$105.00

Blower Motor Compatible with Corolla, Crown, Camry, Highlander, Crown, Reiz, RAV4, Prado, Land Cruiser

Blower Motor Compatible with Corolla, Crown, Camry, Highlander, Crown, Reiz, RAV4, Prado, Land Cruiser

$234.32

Copic Airbrush - Marker Rendering Tool (Cannot Be Used Directly), Model ABS-3, Compatible with Copic Series 1 and 2

Copic Airbrush - Marker Rendering Tool (Cannot Be Used Directly), Model ABS-3, Compatible with Copic Series 1 and 2

$285.00

Beijing Hezhong Dental Implant Service - Includes Implant and Abutment at Central Procurement Prices; Korean Dentium and American Implant Options Available

Beijing Hezhong Dental Implant Service - Includes Implant and Abutment at Central Procurement Prices; Korean Dentium and American Implant Options Available

$1.00

Mini Watercolor Paint Set with Carry Case for Travel Sketching, Journaling, and Students

Mini Watercolor Paint Set with Carry Case for Travel Sketching, Journaling, and Students

$5.50

PGYTECH Dandelion SD Card Case for DSLR and Mirrorless Cameras - Portable TF Memory Card, SIM Card, and XD Card Holder

PGYTECH Dandelion SD Card Case for DSLR and Mirrorless Cameras - Portable TF Memory Card, SIM Card, and XD Card Holder

$84.10

UE4 Unreal Engine 5 Indie Friendly Sounds RPG Sounds Pack - Game-Ready Audio Effects

UE4 Unreal Engine 5 Indie Friendly Sounds RPG Sounds Pack - Game-Ready Audio Effects

$0.50

G80 Manganese Steel Lifting Chain Rigging with Double or Quadruple Hooks, Lifting Rings, and Crane Hooks

G80 Manganese Steel Lifting Chain Rigging with Double or Quadruple Hooks, Lifting Rings, and Crane Hooks

$63.00

Mont Marte Long-Handle Bristle Brush for Acrylic Paint, Art Flat Brush, Oil Painting Brush

Mont Marte Long-Handle Bristle Brush for Acrylic Paint, Art Flat Brush, Oil Painting Brush

$4.00

Stylish Portable Invisible Braces Case for Kids' Orthodontic Retainers and Cleaning

Stylish Portable Invisible Braces Case for Kids' Orthodontic Retainers and Cleaning

$12.40

Used Car Tires (80-90% New) in Sizes 165, 175, 185, 195, 205, 215, 225 - Code 551456

Used Car Tires (80-90% New) in Sizes 165, 175, 185, 195, 205, 215, 225 - Code 551456

$65.00

Commercial and Home Dual-Head Stainless Steel Vegetable Slicer for Cafeterias and Restaurants - Direct from Manufacturer (Slices, Dices, Julienne)

Commercial and Home Dual-Head Stainless Steel Vegetable Slicer for Cafeterias and Restaurants - Direct from Manufacturer (Slices, Dices, Julienne)

$2,142.00

Mountain Ghost Spending Money Cinnabar Coloring Tool Five Emperor Copper Coin Coloring Wood Carving Stone Tablet Taishan Stone Inscription Non-Fading Landscape Buddha Guan Calligraphy Fine Brush Traditional Seal Script Coloring Pen Tracing

Mountain Ghost Spending Money Cinnabar Coloring Tool Five Emperor Copper Coin Coloring Wood Carving Stone Tablet Taishan Stone Inscription Non-Fading Landscape Buddha Guan Calligraphy Fine Brush Traditional Seal Script Coloring Pen Tracing

$17.60

Wide-Opening Chain Sling Assembly with Hooks - Heavy-Duty Lifting Gear, Iron Chains, and Crane Hoist Hooks

Wide-Opening Chain Sling Assembly with Hooks - Heavy-Duty Lifting Gear, Iron Chains, and Crane Hoist Hooks

$145.00

Sketch Blending Stump Set for Artists, Detail Highlight and Shadow Smudging Tools, Cotton Swabs, Scraper, and Sponge Pen Refills

Sketch Blending Stump Set for Artists, Detail Highlight and Shadow Smudging Tools, Cotton Swabs, Scraper, and Sponge Pen Refills

$6.80

Mini Watercolor Paint Set with Walnut Wood Board, Portable Easel, and Travel Sketchbook

Mini Watercolor Paint Set with Walnut Wood Board, Portable Easel, and Travel Sketchbook

$4.68

Modern Housewife Kitchen Sink Organizer - Foldable Dish Drying Rack and Storage Shelf

Modern Housewife Kitchen Sink Organizer - Foldable Dish Drying Rack and Storage Shelf

$44.20

Skid-Mounted Integrated Screw Air Compressor for Laser Cutting - 15kW/22kW/37kW, 16kg, Permanent Magnet VFD

Skid-Mounted Integrated Screw Air Compressor for Laser Cutting - 15kW/22kW/37kW, 16kg, Permanent Magnet VFD

$23,500.00

Wooden Handle Leather Rattle Drum Baby Toy Glue-Free Paint-Free for Ages 1+ Boys and Girls Wooden Shaker

Wooden Handle Leather Rattle Drum Baby Toy Glue-Free Paint-Free for Ages 1+ Boys and Girls Wooden Shaker

$8.42

[Folded Booklet] Liu Chunlin: Palace Examination Essay Final Zhuangyuan Small Regular Script Calligraphy Copybook Original Size Long Scroll

[Folded Booklet] Liu Chunlin: Palace Examination Essay Final Zhuangyuan Small Regular Script Calligraphy Copybook Original Size Long Scroll

$14.20

Stainless Steel Sponge Drain Rack - No-Drill Wall-Mounted Kitchen Sink Organizer for Steel Wool and Scrub Pads

Stainless Steel Sponge Drain Rack - No-Drill Wall-Mounted Kitchen Sink Organizer for Steel Wool and Scrub Pads

$2.60

Analysis of Wang Duo's Classical Poetry Composition Techniques (50 Analyses + 50 Comparisons)

Analysis of Wang Duo's Classical Poetry Composition Techniques (50 Analyses + 50 Comparisons)

$89.00

Custom Sheet Music Transcription Service for 'Farewell Letter' for Saxophone, Clarinet, Flute, Trumpet, Violin, and Cello

Custom Sheet Music Transcription Service for 'Farewell Letter' for Saxophone, Clarinet, Flute, Trumpet, Violin, and Cello

$12.00

Japanese Surplus san-x Rilakkuma Bowl Set - Oven-Safe Bowl with Base and Two Forks for Ice Cream or Hot Pot

Japanese Surplus san-x Rilakkuma Bowl Set - Oven-Safe Bowl with Base and Two Forks for Ice Cream or Hot Pot

$69.90

Guangda Dental | Swiss Dental Implants Including Abutment, Implant Body, and Crown, Improves Chewing, Restores Missing Teeth

Guangda Dental | Swiss Dental Implants Including Abutment, Implant Body, and Crown, Improves Chewing, Restores Missing Teeth

$3,900.00

50pcs Merry Christmas Gift Tags Printed White Paper Labels X

50pcs Merry Christmas Gift Tags Printed White Paper Labels X

$26.44

Kabaxiong Color Gel Pens - Retractable Morandi Style, High-Aesthetic Japanese INS Set for Journaling and Marking

Kabaxiong Color Gel Pens - Retractable Morandi Style, High-Aesthetic Japanese INS Set for Journaling and Marking

$8.88

Continental Tires 225 235 245 255 275/35 40 45 50 55R17 18 19 20 21 22

Continental Tires 225 235 245 255 275/35 40 45 50 55R17 18 19 20 21 22

$350.00