12V DIY Spot Welder Machine PCB Circuit Board Kit The Faraday 12V DIY Spot Welder Kit is a compact and efficient spot-welding solution designed for makers, hobbyists, and battery-pack builders. Built on a single-chip microcomputer system, this portable spot welder provides stable performance, strong output current, and reliable welding for 18650, 26650, and 32650 lithium batteries. The PCB is designed with widened MOSFET paths and reinforced copper/tin plating options, reducing internal resistance and ensuring higher welding efficiency even during heavy-duty use. Engineered for convenience, the kit includes external pads for connecting LEDs and onboard buttons, allowing flexible placement during assembly. Powered by a 12V rechargeable battery, it’s lightweight, sturdy, and built to deliver long-term durability. Whether you’re assembling battery packs, repairing electronics, or working on DIY energy-storage projects, this spot welder kit offers a powerful and user-friendly solution. Features: Designed with a single-chip microcontroller, ensuring stable, precise control during each welding pulse. Includes external pads for LED and button connections, making it easy to integrate into different DIY setups. Features upper and lower MOS design with bold, tinned tracks that reduce internal resistance and boost current output. Equipped with a rear access window allowing users to add copper or tin for enhanced conductivity. Uses 25V low-ESR high-frequency capacitors for a more stable and reliable power supply. Fully battery-powered 12V system, making it portable and suitable for field or workshop use. Built from durable PCB material, offering resistance to wear and long-term performance. Ideal for welding 18650 / 26650 / 32650 lithium battery terminals. 12V DIY Spot Welder Machine PCB Circuit Board Kit Diagram

12V 1.3 Ah Lead Acid Battery The sealed Lead Calcium Maintenance-Free Battery is an advanced and economical rechargeable battery. It has several properties different from other types of batteries maintenance Free - As it is valve-regulated, sealed and glass-mat is utilized, acid is trapped inside. So, refilling is not needed and is leakproof. Explore the 12-volt battery price at Iotcart, This maintenance-free battery offers low self-discharge, long service life, and efficient performance with a constant voltage charging method. Constant Voltage Charging Charging at constant voltage is the most suitable and commonly used method for charging batteries. The charger voltage must be stabilized in a narrow range and with a device to suppress the initial current to less than 0.3C. The initial current limitation can be accomplished by a constant-current regulator, a properly designed output voltage from the power transformer, or by creating the overall impedance of the circuit (such as using a current regulating resistor). During the final stage of charge, the current decreases automatically. Show constant voltage charger circuits provided with constant voltage functions, composed of transformers, transistors, silicon diodes, IC’s etc. Constant Current Charging It is an effective method for a supplementary charge of many batteries simultaneously in series during storage but the charging time must be strictly controlled. It is because if the charging is continued at the same rate for an extended period of time after the battery has reached a fully charged state, battery voltage rises excessively, water decomposes, heat is generated, and a severe overcharge may occur resulting in heavy damage to the battery. For the longest life, it is not recommended to repeatedly use constant current charging for refreshing batteries. Enjoy free shipping on orders above Rs. 500 and earn RC Coins on every purchase. Order now and get your 12-volt battery delivered.

12V Mini Ambulance Siren Siren is a noisemaking device producing a piercing sound of definite pitch. This is a 12 Volt Mini Siren which can be used in your project for alarm purpose Though is called “Mini Siren” there is nothing mini about it the sound is ear-deafening and turn this ON at your own risk. If you are tired of an old buzzer and want something with loud noise then this is the siren for you. This Product Known as Mini Horn Alarm Siren, Sound Alarm DC 12V, Sounder 12V -Siren, 12V Mini Siren Sounder, Sound Alarm System, 12V Horn Siren, Mini DC 12V Horn Siren, 12V Small Mini Siren Alarm Application: Home Security System Vehicle Security Fire Alarms Intruder Alarms Burglar Alarm

12v Mini Square Siren 12V Mini Square Siren is a compact and reliable audio alert device designed to produce loud warning sounds in a variety of systems and applications. This siren operates on a standard 12 V DC supply, making it suitable for automotive, security, alarm, and industrial use. It solves the need for a simple yet effective audible alert, ideal for installers, technicians, hobbyists, and makers who require a clear sound signal in their projects or safety systems. Perfect for both professional setups and DIY electronics, this mini square siren can be integrated into vehicle alarms, home security systems, factory warning circuits, and other alerting applications where sound notification is needed. Its small size and straightforward installation allow users to deploy it easily in tight spaces, and its dependable performance ensures consistent alerts, enhancing safety and awareness in your systems.

12V Piezo Buzzer Plate (27mm) Piezo Electric Sensor /Buzzer/Transducer-27mm , it is basically a device which converts voltage to vibration and vibration to voltage. It normally comes in handy to measure knock (knock sensor) or vibration (vibration sensor). Now a days it is also used extensively in power generation projects e.g. Foot Step Power Generation. A Piezoelectric transducer is a device that uses the piezoelectric effect to measure pressure, acceleration, strain or force by converting them to an electrical charge These devices can be used both as sensors and actuators, so they're referred to as transducers, a term applied to any device that can convert one form of energy to another. The sensor turns mechanical energy into electric potential, and the actuator converts electrical energy into mechanical force or motion. The Piezoelectric material used here, ceramic lead zirconate titanate known as PZT has the ability to provide twice the voltage of Quartz under a given force. These transducers are simple, reliable, and very robust, and so find wide use in industry, medicine, and aero-space work. They're unaffected by external electromagnetic fields, and so can be used in applications where electronic sensors would fail. They are stable over a broad range of temperatures, but may be effected by long use at high temperatures.

12V Mini Police Siren This is a 12 Volt Mini Police Siren, which can be used in your project for alarm purposes. Though it is called “Mini Siren”, there is nothing mini about it. The sound is ear-deafening, and turn this ON at your own risk. If you are tired of an old buzzer and want something with a loud noise, then this is the siren for you. This 12V Police Siren Buzzer is an ideal replacement for your DIY car alarm system or any other vehicle security device. The 12V Police Siren Buzzers are made using high-quality materials and components. They have been built to last and will provide years of reliable service. Application: Home Security System Vehicle Security Fire Alarms Intruder Alarms Burglar Alarm

12V Relay Cube This is a 12V Relay Cube. This cube relay has an operating voltage of 12V and has a max current capacity of 7A. This makes it most suitable for use in microcontroller-based devices like Arduino. It is an SPDT 12V Relay. Relays are used where it is necessary to control a circuit by an independent low-power signal, or where several circuits must be controlled by one signal. APPLICATIONS: Control Solenoids Motors Bulbs and Lamp Home Automation Projects Freewheeling diode to protect your microcontroller Also check 12V 1 Channel Relay Module with a 10A switching capability. It is an electronic module designed to control an electrical circuit using an electromagnetic switch.

12V STC-3028 Dual Digital Thermostat Temperature Humidity Control This is a 12V STC-3028 dual-display thermostat temperature controller. The temperature controller has the characteristic of high precision, high sensitivity, and high stability. Supports temperature correction and support for energy loss. Control temperature by setting the temperature setting value and the difference value. Alarm when the temperature exceeds the temperature limit or when sensor error. Thermostats are used in any device or system that heats or cools to a setpoint temperature, examples include building heating, central heating, air conditioners, HVAC systems, water heaters, as well as kitchen equipment including ovens and refrigerators, and medical and scientific incubators. Key Features: ABS flame retardant plastic shell, more safe to use. Microcomputer intelligent digital display thermostat, dual display dual temperature. With a wide temperature measuring range and controlling range, comes with an integrated sensor. The large and clear digital display shows measuring temperature, high accuracy of temperature measuring, and controlling. Suitable for automatic switching of refrigeration and heating devices such as seafood machines and cooling water machines. Applications: Terrarium Greenhouse Plants Breeding and Incubation Scientific incubators Also check STC-3028 Digital Temperature Humidity Controller 110-220V . It can be used with a sensor to monitor temperature and humidity. It has a dual display and can switch between cool and heat modes.

12V Warm White 5050 SMD LED Strip Flexible 5M/Roll NO Waterproof This Bright 5050 SMD LED, has high intensity and reliability. It has a significantly longer life span of around 50,000 hours than ordinary LED strips available in the market and therefore it can be used for application where long-life performance required. This 5 meter LED strip with around 300 LEDs on strip operates at 12V at 2A DC supply. The Strip has soldered endpoint from both ends to connect strip conveniently. The flexible ribbon is very easy for curving around bends and for completely smooth and even light spread, solving the uneven luminous problem. This LED strip has the advantage of Ultra-bright but running at low-temperature low power consumption. The strip comes with 5M self-adhesive to easy install. With this you can create different ambience at the comfort of your hands just by switching lights on and the designer sequence of lights that are already preset. These lights can be used as decorative pieces around the house especially during festive occasions, office buildings, walls etc. or for any functions to brighten the occasion. Application: Ideal for decoration of building outlines, landscape illumination, amusement themes. Holiday light sculpture, decorative figure, active signs, displays, shop windows Storefronts, bar, nightclub, street, sidewalk, deck, park, porch, staircase, railing, ceiling, or driveway.

12V Warm White 5050 SMD LED Strip Flexible 5M/Roll Waterproof (5 Meter) This Bright 5050 SMD LED, has high intensity and reliability. It has a significantly longer life span of around 50,000 hours than ordinary LED strips available in the market and therefore it can be used for application where long-life performance required. This 5 meter LED strip with around 300 LEDs on strip operates at 12V at 2A DC supply. The Strip has soldered endpoint from both ends to connect strip conveniently. The flexible ribbon is very easy for curving around bends and for completely smooth and even light spread, solving the uneven luminous problem. This LED strip has the advantage of Ultra-bright but running at low-temperature low power consumption. The strip comes with 5M self-adhesive to easy install. With this you can create different ambience at the comfort of your hands just by switching lights on and the designer sequence of lights that are already preset. These lights can be used as decorative pieces around the house especially during festive occasions, office buildings, walls etc. or for any functions to brighten the occasion. Application: Ideal for decoration of building outlines, landscape illumination, amusement themes. Holiday light sculpture, decorative figure, active signs, displays, shop windows Storefronts, bar, nightclub, street, sidewalk, deck, park, porch, staircase, railing, ceiling, or driveway.