{"product_id":"9v-battery-reliable-power-for-electronics-projects","title":"9V Battery – Reliable Power for Electronics Projects","description":"\u003ch1\u003e9V Battery – Standard Alkaline Power for Everyday Electronics\u003c\/h1\u003e\u003cp\u003eThe 9V battery (PP3 form factor) is an essential power source for a wide range of electronics. It provides a stable 9 volts DC, making it ideal for portable devices, testing equipment, and compact projects. Whether you're powering an Arduino, a multimeter, or a DIY amplifier, this battery delivers consistent performance.\u003c\/p\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e9V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eAlkaline\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical Capacity\u003c\/td\u003e\n\u003ctd\u003e550–600 mAh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e48.5 mm x 26.5 mm x 17.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e~45 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Type\u003c\/td\u003e\n\u003ctd\u003eSnap connector (male\/female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePortable Arduino projects like environmental sensors or LED displays\u003c\/li\u003e\n\u003cli\u003ePower a digital multimeter for on-the-go measurements\u003c\/li\u003e\n\u003cli\u003eWireless alarm systems with 9V-operated sensors\u003c\/li\u003e\n\u003cli\u003eGuitar effect pedals and audio circuits\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cp\u003eThis 9V battery works with any device that accepts a PP3 snap connector. It is commonly used with Arduino boards via the Vin pin, ESP32 modules with 9V input, and development boards that have a 9V barrel jack or terminal. It also pairs perfectly with standard 9V battery clips for breadboard prototyping.\u003c\/p\u003e\u003ch2\u003eWiring Notes\u003c\/h2\u003e\u003cp\u003eUse a 9V battery snap connector with red (+) and black (-) wires. For Arduino, connect the positive red wire to Vin and the black wire to GND. Ensure your circuit does not draw more than 100–150 mA continuously to avoid voltage sag. If using with sensitive electronics, consider adding a capacitor across the terminals to reduce noise.\u003c\/p\u003e\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino Uno?\u003c\/summary\u003e\u003cp\u003eYes, you can power an Arduino Uno by connecting the 9V battery to the Vin pin and GND. The onboard regulator will step down to 5V. Do not draw more than 150 mA total from the 5V pin when using a 9V battery.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow long does a 9V battery last in typical projects?\u003c\/summary\u003e\u003cp\u003eFor a low-power circuit drawing 10 mA, expect around 50–60 hours. Higher current loads will reduce runtime proportionally. For reference, an Arduino Uno with minimal components uses about 50 mA, giving roughly 10–12 hours of operation.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I use a rechargeable 9V battery instead?\u003c\/summary\u003e\u003cp\u003eYes, rechargeable 9V batteries (NiMH or Li-ion) work in most devices, but note they have slightly lower voltage (7.2V or 8.4V nominal) and may not suit circuits requiring a stable 9V under load. This listing is for a standard alkaline battery.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445081170285,"sku":"CDN-0938","price":60.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_1e25f0ce-a971-45ce-8422-91ca55fcaebc.jpg?v=1781513191","url":"https:\/\/compoden.com\/products\/9v-battery-reliable-power-for-electronics-projects","provider":"Compoden","version":"1.0","type":"link"}