D&V Engineering

13S 48V 30A Li-ion Battery Protection Board is used for Overcharge protection, over-discharge protection function, short circuit protection function and  over current protection function

1. Input Charging Voltage:54.6 V
2. Number of cells in series: 13S
3. Input Charging Current: 30A
4. Output Discharging Current: 30A
5. Use:48V lithium battery 

1. Stereo Output: Dual-channel output delivers 2 × 30W of clean, high-quality audio.
2. Efficient Class D Technology: Low power loss and minimal heat, ideal for compact enclosures.
3. 12V DC Operation: Simple power supply requirements for easy integration.
4. High Fidelity Audio: Low Total Harmonic Distortion (THD) ensures clear and crisp sound.
5. Plug-and-Play Ready: Minimal external components needed; fast to set up.
6. Compact Size: Easily fits in small form factor audio projects or enclosures.

1. High output power: 48V DC at 5A (240W total)
2. Universal AC input: 100–240V AC, 50/60Hz
3. Built-in safety protections: Overload, Over-voltage, and Short-circuit
4. Metal enclosure with ventilation slots for efficient heat dissipation
5. LED indicator for quick power status verification
6. Screw terminal outputs for easy wiring
7. High efficiency and stable performance

1. Stable Output: Provides a constant 48V DC output with a maximum current capacity of 10A, ensuring a reliable power source for sensitive equipment.
2. High Efficiency: The switch mode technology offers excellent energy efficiency, reducing energy loss and heat generation compared to traditional linear power supplies.
3. Compact Design: Space-saving design makes it easy to integrate into various applications, even in confined spaces.
4. Wide Application: Perfect for industrial machinery, LED lighting systems, electric vehicles, battery charging, and more.
5. Overcurrent Protection: Built-in protection circuits prevent damage to both the power supply and connected devices by automatically shutting down in case of excessive current.
6. Overvoltage and Overtemperature Protection: Safeguards the power supply and connected devices from voltage spikes and overheating.
7. Cooling Fan: Equipped with an internal cooling fan to maintain optimal temperature and ensure efficient performance under load.
8. Reliable Performance: Designed for long-term use with high-quality components for consistent and stable operation.

1. Input voltage range: 6V to 32V ; Output voltage: The default is 5V. After the fast charge is triggered, it is automatically adjusted between 3 and 12V. Output Power. 24W (5V, 3.4A, 9V, 2.5A, 12V, 2A, etc.)
2. Support fast charging protocol for BC1.2, iPhone, Samsung agreement for Qualcomm QC2.O and QC3.O MTKPEI.1/PE2.O Fast Charge Protocol FCP Star Fast Charge Protocol AFC
3. Spreadtrum Fast Charge Agreement SFCP Applications Solar panel to mobile phone charging Car charging retrofit
4. Package included: 1 Pcs DC-DC Step Down Buck Converter Charging Module

• Package Include :- 2PSC 5PIN MINI MICRO USB
• Mini Micro USB To DIP 2.54mm Adapter
• Widely used in electronic product links

1. Versatile Measurement: Accurately measures AC/DC voltage, DC current, and resistance, making it perfect for household, automotive, and industrial applications.
2. Diode & Continuity Testing: Includes built-in diode and continuity tester, ensuring easy fault detection and troubleshooting.
3. Clear LCD Display: Features a backlit LCD screen for easy readability, even in low-light conditions.
4. User-Friendly Design: Compact, lightweight, and equipped with a durable casing for enhanced portability and long-lasting performance.
5. Ideal for Professionals & DIYers: Suitable for electricians, technicians, hobbyists, and DIY enthusiasts for efficient and precise measurements.

1. 170 Tie Points: Perfect for prototyping simple circuits and small-scale projects.
2. Solderless Design: Effortlessly insert and remove components without soldering, allowing for quick modifications.
3. Standard Layout: Organized grid pattern for efficient component placement and clear circuit design.
4. Dual Power Rails: Two power rails on each side for easy power distribution to your circuit components.
5. Durable Material: Made from high-quality ABS plastic with nickel-plated copper contacts for reliable performance.
6. Compact Size: Lightweight and portable, making it ideal for classroom use, labs, or home workshops.
7. Compatible with Through-Hole Components: Supports a variety of components, including ICs, resistors, capacitors, and LEDs.

• The shell is made from high standard flame retardant engineering ABS plastic.
• Wiring capacity from 0.5-2.5 square wire; TEMPERATURE: -40 to 150 degrees Celsius
• Self Locking, Natural Spring Loaded Wire Clamp, Push Release, Pressure Opening Type Compression Lock, 2 Way Dual Direction Entry Level Connection Pins Inserts.

• HIGH-STRENGTH CONSTRUCTION: Each PVC insulated pin terminal in this pack of 100 is manufactured from high-strength electrolytic copper alloy and electro-tin plated for corrosion resistance.
• The PVC insulation of these PVC insulated pin terminals help to eliminate strand hang up, ultimately increasing crimping rates and offering mechanical strain relief.
• Suitable for all indoor and outdoor wiring requirements! This crimp pin connector is coated with electro-tin copper which is highly resistant to chemicals and corrosion. This property of the terminal pins makes it an ideal connector for all weather conditions

2. Durable Acrylic Construction: Made with high-quality thick acrylic, offering excellent protection while maintaining a lightweight and transparent design.
3. Perfect Fit: Specifically designed to accommodate the Raspberry Pi 3 and a 3.5-inch LCD screen, ensuring secure mounting and compatibility.
4. Easy Access to Ports: Thoughtful cutouts allow full access to the Raspberry Pi’s GPIO pins, USB ports, HDMI output, and micro-USB power input.
5. Ventilated Design: Features ventilation holes for proper airflow, preventing overheating and ensuring efficient performance.
6. Simple Assembly: Easy to assemble and disassemble with included screws, making it convenient to access your Raspberry Pi board for modifications or upgrades.
7. Clear and Sleek Design: Transparent acrylic body showcases your Raspberry Pi setup while offering a clean, professional look.
8. Compatible with Add-ons: Provides space for other Raspberry Pi accessories, including expansion boards, making it versatile for different projects.

• HIGH-STRENGTH CONSTRUCTION: Each nylon insulated pin terminal in this pack of 100 is manufactured from high-strength electrolytic copper alloy and electro-tin plated for corrosion resistance. Cable entry 2.5 sqmm
• The nylon insulation of these nylon insulated pin terminals help to eliminate strand hang up, ultimately increasing crimping rates and offering mechanical strain relief.
• CONDUCTOR SECTION: 1.5-2.5mm2 (A.W.G 16-14) in Blue color

• Package contains 1pcs circuit only
• You Can connect speakers directly
• In built sound sensor or mic
• Contains bluetooth/FM/MP3/USB output/micro chip slot/micro B-type USB slot/aux cable slot
• Push buttons for easy handling

• Overcharge detection voltage range: 4.25-4.35V±0.05V
• Over discharge detection voltage: 2.3-3.0V±0.05V
• Charging voltage: 11.1V-12.6V
• Maximum discharge current: 10A
• Transient current: 9A-10A
• Quiescent current: <30µA
• Internal resistance: <100mΩ

• Strictly According to the Drawing Wiring 0 V (B), 3.7 V (B1), 7.4 V (B2), 11.1 V (B +), not intentionally short circuit.
• When Connecting three Battery Groups, Please make Sure that the Voltage of each battery group, if not the same, fill each battery separately and then use it in series. discharge test, the fastest battery voltage drop, which group is low battery. (2 good battery + a use effect = 3 low battery low battery use effect).

1. Converts USA, Japan, China, Taiwan, Thailand,Thailand, Europe, Italy, Indonesia And Korea To India
2. On One Side Conversion Plug Has Indian Two Pin Plug And On Other Side It Has Flat 2 Pin (2 pin Flat ) Socket
3. Voltage Compatable For 110V-220V Ac
4. Small, Easy To Carry Around And Perfect For Your Travels
5. Output: Type D Plug Suitable For India

• Made of plastic material, lightweight and easy to use
• Mount bracket holder in one pack, convenient for multi motors mounting.
• Great part to fix a little motor in place on the your DIY model's base
• The package does not contain the motor

• HIGH-STRENGTH CONSTRUCTION: Each nylon insulated pin terminal in this pack of 100 is manufactured from high-strength electrolytic copper alloy and electro-tin plated for corrosion resistance.
• The nylon insulation of these nylon insulated pin terminals help to eliminate strand hang up, ultimately increasing crimping rates and offering mechanical strain relief.
• Suitable for all indoor and outdoor wiring requirements! This crimp pin connector is coated with electro-tin copper which is highly resistant to chemicals and corrosion. This property of the terminal pins makes it an ideal connector for all weather conditions
• Pin Type Thimble is used to terminate electrical wires or connections in a professional manner

1. Supply Voltage: 3.3V; Control Interface: GND, VCC, MISO, MOSI, SCK, CS; Supports FAT file system SD carrier; Supports playing of 4Bit ADCPM format files
2. Recognize the voice files automatically; Support microprocessor and key control; Audio output: 16bitDAC and PWM
3. Maximum voice storage: 512 voice; Operating voltage: DC 2.6 to 3.6V; Quiescent current: 16 μA (SD card is not inserted); Mounting Hole size: M2
4. PCB Size in:- Length: 18mm; Width: 20mm; Weight: 4gm;

1. High Conductivity: Gold-plated copper construction ensures excellent conductivity and minimal power loss.
2. Wide Application: Perfect for RC drones, planes, helicopters, e-bikes, DIY electronics, and high-current battery connections.
3. Secure Locking: Tight snap fit ensures stable and vibration-proof connections for reliable performance.
4. Durable and Long Lasting: Corrosion-resistant gold plating provides long-term stability even under harsh conditions.
5. Easy to Use: Simple soldering setup with a side-hole design for easy wire insertion and soldering.

• Makes Stereo Connection Easy
• Suitable for speaker cabinet,home speaker,car speaker,etc
• Made of high quality plastic and copper,more durable and sturdy
• Spring loaded red (positive) and black (negative) raw wire connectors, pressure fit design

1. Material: Metal
2. LED diameter: 10mm
3. Suitable for: 10mm LED
4. Diameter Mounting opening: 14.2 mm

1. Size: 6.2 x 3.8 x 1.4cm (LxWxD)
2. Modulation mode: ASK (Amplitude Modulation)
3. Transmitting frequency: 315MHz (SAW frequency stabilization)
4. Transmission distance :50-100M (Open field the receiver sensitivity-100dbm)
5. Encoder types: fixed code
6. The frequency of this product is 315 mhz.

• HIGH-STRENGTH CONSTRUCTION: Each nylon insulated pin terminal in this pack of 100 is manufactured from high-strength electrolytic copper alloy and electro-tin plated for corrosion resistance. Cable entry 1.5 sqmm
• The nylon insulation of these nylon insulated pin terminals help to eliminate strand hang up, ultimately increasing crimping rates and offering mechanical strain relief.
• 0.5-1.5mm2 (A.W.G 22-16) in red color

1. Contactless transmission of data and supply energy (no battery needed)
2. Operating distance: Up to 100mm (depending on antenna geometry)
3. Operating frequency: 13.56MHz
4. Data transfer: 106 kbit/s
5. Data integrity: 16 Bit CRC, parity, bit coding bit counting
6. Anticollision
7. Typical ticketing transaction: <100 ms ( including backup management)

• RC522 - RFID Reader /Writer with Cards Kit includes a 13.56MHz RFID-RC522 Reader/Write Module, standard blank RFID chip, Straight header strip, right-angle header strip and a special shaped RFID tag keychain. It uses SPI to communicate with microcontrollers. It supports ISO/IEC 14443 A/MIFARE.
• Flexible interrupt modes | Power-down by software mode | Programmable Timer | 2.5 V to 3.3 V power supply | CRC coprocessor | Internal self-test | Highly integrated analog circuitry
• Dimensions: LxWxH:60x39.5x5mm

1. Analog acquisition, press the different buttons of different voltage output.
2. Port compatible sensor expansion board.; Product Size: Total Length: 60 x 20mm/ 2.36 x 0.78inch
3. Output high level when pressed, release to keep low level.
4. Single Module Size in mm:- Length: 20 mm; Width: 12 mm; Height: 15.5 mm; Approx Weight. 5 gm
5. Packaged by:- Sharvi Technologies (OPC) Pvt. Ltd.; Address:- #09, CK Nagar, AECS layout, Hosa Road, Bangalore-560100

• HIGH-STRENGTH CONSTRUCTION: Each PVC insulated pin terminal in this pack of 100 is manufactured from high-strength electrolytic copper alloy and electro-tin plated for corrosion resistance.
• The PVC insulation of these PVC insulated pin terminals help to eliminate strand hang up, ultimately increasing crimping rates and offering mechanical strain relief.
• Suitable for all indoor and outdoor wiring requirements! This crimp pin connector is coated with electro-tin copper which is highly resistant to chemicals and corrosion. This property of the terminal pins makes it an ideal connector for all weather conditions

1. Ports available : 2 x power, 2 x LAN (data voice), 1 x HDMI, 1 x USB , 1 VGA Port
2. When it is not used, the outlet can be hidden in the panel box
3. Plug this popup box and play with Hydraulic, silver/black coloured DeskPORT (Hydraulic)Series of 10 modules.
4. Premium Quality 10 Module hydraulic popup box
5. The wires are reserved at the bottom of the box in order to connect easily and it can be pull out of the box for easy installation

1. IC Chip: FT232RL
2. Pitch: 2.54 mm
3. Temperature Range: -40 to +85 degree Celsius

1. Superior Loop Tensile Strength: Minimum 8 kg
2. Operating Temperature: -10 to +85 degrees Celsius
3. UL, CE and ROHS approved
4. Bundle Diameter: 2 to 35 mm
5. Flammability Rating: UL 94 V2