{"product_id":"18650-cell-37v-2600mah-li-ion-battery","title":"18650 Cell 3.7V 2600mAh Li-ion Battery","description":"\u003ch1\u003e18650 Cell 3.7V 2600mAh Rechargeable Battery\u003c\/h1\u003e\n\n\u003cp\u003eThe 18650 cell is a cylindrical lithium-ion rechargeable battery widely used in portable electronics. With a nominal voltage of 3.7V and a typical capacity of 2600mAh, it delivers reliable power for flashlights, power banks, and DIY electronics projects. Its compact 18mm x 65mm form factor makes it easy to integrate into custom builds.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003e18650\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eLithium-ion (Li-ion)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e3.7V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e2600mAh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e18mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e65mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Discharge Current\u003c\/td\u003e\n\u003ctd\u003e5.2A (2C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBuild a portable phone charger using a 5V boost converter module and a TP4056 charger.\u003c\/li\u003e\n\u003cli\u003eCreate a high-power LED flashlight with a constant current driver for maximum brightness.\u003c\/li\u003e\n\u003cli\u003eAssemble a rechargeable battery pack to power Arduino or Raspberry Pi projects on the go.\u003c\/li\u003e\n\u003cli\u003ePower a small DC motor in a simple robot by connecting multiple cells in series for higher voltage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis 18650 cell works with any device or project that accepts standard 18650 cells. It pairs seamlessly with common lithium-ion charger modules like the TP4056 for safe charging. The voltage range of 3.0–4.2V is standard, so verify your device's input requirements before use.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eSolder tabs carefully to avoid overheating the cell terminals. Use a battery holder for easy replacement and to prevent short circuits. When combining cells, ensure they are matched in capacity and charge state, and always include a protection circuit for overcharge\/overdischarge safety.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\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\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with common TP4056 charger modules?\u003c\/summary\u003e\u003cp\u003eYes, this 18650 cell is fully compatible with TP4056-based charger modules. Just connect with correct polarity and it will charge safely to 4.2V.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I use this in a high-drain device like a vape mod?\u003c\/summary\u003e\u003cp\u003eThis cell is rated for a 2C continuous discharge (5.2A). For high-drain applications, consider a cell with a higher discharge rating to avoid overheating.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow long will this battery last in a basic USB power bank?\u003c\/summary\u003e\u003cp\u003eIn a typical 5V boost circuit at 1A output, a 2600mAh cell can provide roughly 2.6 hours of runtime, assuming 100% efficiency; real-world efficiency is around 85%.\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":53445045780845,"sku":"CDN-0851","price":300.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/Rechargeable-Icr-18650-2600mAh-3-7V-Li-Ion-Battery-for-7-4V-Battery-Pack-insideFPV-1293.webp?v=1781522037","url":"https:\/\/compoden.com\/products\/18650-cell-37v-2600mah-li-ion-battery","provider":"Compoden","version":"1.0","type":"link"}