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BMS 3S 40A 12.6V Li-ion Lithium Battery Protection & Charging Board – For 18650/26650/Polymer Batteries
- ⚡ High Discharge Capability: Supports up to 40A continuous discharge
- 🔋 Safe Charging: Supports up to 20A continuous charging
- ✅ Battery Protection: Prevents overcharge, over-discharge, and short circuits
- ⚖️ Balance Version: Maintains each cell at proper voltage
- 🔥 Thermal Protection: Automatically discharges if single cell exceeds 4.2V
- 🛠️ Wide Compatibility: Works with 18650, 26650, and polymer lithium batteries
- 🏋️ High-Power Drill Support: Can handle ≤ 170W drills with proper batteries
- 🧰 Enhanced Version: Compact size for tight installations
- ⚠️ Strict Wiring Protocol: Connect 0V, 4.2V, 8.4V, 12.6V exactly as diagrammed
- 💡 LED/Resistor Monitoring: 430 resistor heats to discharge overvoltage safely
- 🌍 DIY & Industrial Use: Ideal for custom battery packs, e-bikes, tools, and robotics
- 🛡️ Durable Design: High-quality PCB ensures long life under high current conditions
₨ 350 -
BMS 4S 40A Li-ion Lithium Battery Charger Protection Board 18650 BMS 14.8V 16.8V
- Product Name: 4 string 14.8V 16.8V 40A lithium battery protection board
- Charging voltage: DC 16.8V~17V
- Continuous discharge current: 40A maximum (if the heat dissipation environment is not good, please reduce the load current)
- Continuous charging current: up to 20A
- Balance VersionProduct size: 45*60*4mm
- Enhance VersionProduct size: 44*55*4mm
- Applicable choice: applicable to the nominal voltage of 3.7V, fully charged 4.2V lithium battery
- (including 18650, 26650, polymer lithium battery), can be drilled below 170W
₨ 350 -
BMS 5S 15A Lithium Battery 18650 Charger 18.5V
- Continuous discharg current: 15A(max)
- Instantaneous discharg current: 25A
- Charge:
- Charge voltage: 21V
- Charging current: 15A(max)
- Overcharge Protect:
- Over-charge detect: 4.28±0.05V
- Over-charge release: 4.28±0.05V
- Over-discharge Protect:
- Over-discharge detect: 2.55±0.08V
- Release voltage: 2.9±0.1V
- Short-circuit Protect:
- Protect condition: Cut load
- Release condition: Cut load
- Over-current Protect:
- Detect voltage: 150mV
- Current detect: 30±3A
- Release condition: Cut load
- Inner Resistance: ≤20mΩ
- Self-consumption:
- Working current: ≤30uA
- Working Temperature Range: -30-+80℃
₨ 370 -
DC 12-40V 12V-40V 10A PWM Motor Speed Control Switch Controller Volt Regulator Dimmer
- Material: Plastic, metal.
- Working Voltage: DC12V-DC40V.
- Control Power:0.01-400W.
- Static Current:0.02A( Standby ).
- PWM Duty Cycle:10%-100%.
- PWM Frequency:13KHz.
- Control the speed of a DC motor with this controller.
- High efficiency, high torque, low heat generating.
- With reverse polarity protection, high current protection.
₨ 600 -
DC Fan Motor PWM Speed Controller Module Regulator DC Dimmer
- DC 5A Mini DC Motor PWM Speed Controller Module Speed Regulator Adjustable or Light intensification
- Output current: 0-5A
- Output power: 90W (MAX)
- Quiescent current: 7u A(standby mode)
- PWM duty ratio: 1%-100%
- PWM frequency: 20khz
- Color: multicolor
- Material: electric components Package list:
- 1 x motor PWM speed controller Features:
- Use:stable performance.
- Function: It is suitable for LED Dimming.
- Great performance: High efficiency, low heat generating and high torque
₨ 260 -
DC Fan/Motor PWM Speed Controller Module Mini DC 5A 90W Speed Regulator Control Adjust Adjustable Switch
- Output current: 0-5A
- Output power: 90W (MAX）
- Quiescent current: 7u A（standby mode）
- PWM duty ratio: 1%-100%
- PWM frequency: 20khz
- Size: 30*26mm
- Color: multicolor
- Material: electric componentsPackage list:
- 1 x motor PWM speed controllerFeatures:
- Use: The item is equipped with self-recovery fuse, stable performance.
- Function: It is suitable for LED Dimming.
- Great performance: High efficiency, low heat generating and high torque
₨ 240 -
Digital LED Display Power Bank Module | 5V Single USB Charger Board with Type-C & Precision Percentage Readout
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Digital LED Readout: Built-in numerical display shows battery percentage (%) and charging status.
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Versatile Connectivity: Includes a high-speed USB-A output, a bidirectional Type-C port, and a Micro-USB input.
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Compact Form Factor: Sleek, narrow design ideal for small enclosures and 18650 battery builds.
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Clearly Marked Soldering Points: Features prominent B+ and B- pads for safe and easy battery connection.
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Onboard Function Switch: Includes a side-mounted button to wake the display and check power levels instantly.
₨ 220 -
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DIY Fast Charging Power Bank Case with LED Display – Up to 25000mAh | Type-C Input | Dual USB + 4 Built-in Cables | Battery Not Included
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✅ Input: Type-C USB (Fast Charging Supported)
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⚡ Power Input: 5V to 9V, up to 3.2A / 18W
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🔋 Battery Capacity Support: Up to 25000mAh
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🔌 Outputs:
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2 × USB-A Output Ports
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4 × Built-in Flat Charging Cables (Micro USB, Type-C, Lightning, etc.)
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🧰 DIY Design: Openable case for easy battery installation
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🔦 LED Indicators: Shows battery and charging status
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🧱 Durable Casing: Lightweight yet strong plastic shell
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🔧 Easy Assembly: soldering required
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🧳 Portable Size: 14.7cm × 7cm × 3.3cm
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❌ Note: Batteries are NOT included
₨ 1,250 -
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DIY Power Bank Motherboard: High-Efficiency Charging Module with Type-C, Micro-USB & Lightning Inputs
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DIY power bank charging & discharging control module
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Supports Micro-USB & Type-C input (5V)
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Dual USB-A output ports for charging two devices simultaneously
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Output ratings: 5V / 1A and 5V / 2.1A
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Compatible with 3.7V Li-ion / Li-Po batteries
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Recommended for 18650 battery cells
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Built-in battery protection & charging management
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Compact slim PCB design for easy installation
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Ideal for DIY electronics projects, portable chargers, and repairs
₨ 165 -
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Dual USB 5V 2A Power Bank Charging Module – 18650 Battery Compatible | Shehzad Electronics
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🔌 Dual USB Output (5V/2A) – Charge two devices at once
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🔋 Battery Compatible: 18650 & Polymer Lithium (3.2V – 4.2V)
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💡 4-Level LED Battery Indicator – Know your power level
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🛡️ Built-in Protection: Overcharge, Over-discharge, Over-current
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⚡ Smart Auto Power Off – Saves energy when idle
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🔧 Micro USB Input Port – Supports 5V input (Recommended: 5V/1A or higher)
₨ 120 -
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Dual USB Power Bank Module 5V 2.1A – DIY Battery Charger Board with LED Display
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Dual USB Output: Charge two devices simultaneously with dedicated $1\text{A}$ and $2.1\text{A}$ ports for standard and fast-speed charging.
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Smart LED Digital Display: Real-time battery percentage monitoring (0–100%) so you’re never caught with a dead battery.
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Dual Input Options: Supports both USB Type-C and Micro-USB charging cables for maximum compatibility.
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Compact & Durable: Slim PCB design ($T=1.0\text{mm}$) makes it easy to fit into 3D-printed cases or small enclosures.
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Advanced Safety Protection: Built-in overcharge, over-discharge, and short-circuit protection to keep your batteries and devices safe.
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Easy DIY Setup: Clearly marked B+ and B- soldering points for quick connection to 3.7V lithium battery cells.
₨ 220 -
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Dual USB Power Bank Module 5V 2A – Reliable Charging Circuit
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🔌 Dual USB Output Ports – Charge two devices simultaneously with a total 5V/2A output
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🔋 Battery Compatibility – Works with 3.7V lithium-ion and polymer batteries (18650, flat cells, etc.)
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💡 LED Battery Level Indicator – 4-stage display shows real-time battery charge status
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🛡️ Built-in Protection Circuitry – Prevents overcharge, over-discharge, over-current, and short-circuit
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⚙️ Compact PCB Design – Easy to fit into custom cases or enclosures (Approx. 68×30×12mm)
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🧠 Auto Power-Off Feature – Shuts down intelligently when not in use
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🧰 Plug-and-Play Setup – No soldering required; quick battery terminal connection
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🔧 Perfect for DIY & Learning – Ideal for electronics students, makers, and repair professionals
₨ 115 -