{"product_id":"3-7v-2500mah-18650-li-ion-battery","title":"3.7v 2500mah 18650 Li-Ion Battery","description":"\u003cmeta name=\"description\" content=\"Buy 37v 2500mah 18650 LiIon Battery online in India at best price from The Engineer Store, Bengaluru. Authentic product, 7-day warranty on manufacturing defects, fast delivery across India.\"\u003e\n\u003ch1\u003e3.7v 2500mah 18650 Li-Ion Battery\u003c\/h1\u003e\n\n\u003cp\u003ePremium rechargeable lithium-ion battery from The Engineer Store, Bengaluru. Authentic products, fast delivery, comprehensive warranty, and 24\/7 expert support.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\n\u003cp\u003eThe 3.7V 2500mAh 18650 Li-Ion Battery is a high-performance rechargeable power cell designed for demanding applications. With excellent energy density and reliable performance, it's ideal for both hobbyists and professionals requiring dependable power solutions.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecification\u003c\/td\u003e\n\u003ctd\u003eDetails\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.7V (Nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCapacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2500mAh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLithium-Ion (Li-Ion)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18650 (18mm x 65mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLi-Ion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOriginal\/Authentic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7-day warranty on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupport\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEmail \u0026amp; WhatsApp 24\/7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eWhy Choose Our 18650 Battery?\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003e100% Authentic\u003c\/strong\u003e - Sourced from authorized distributors with full verification\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHigh Capacity\u003c\/strong\u003e - 2500mAh for extended runtime\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReliable Performance\u003c\/strong\u003e - Consistent power delivery across charge cycles\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFast Shipping\u003c\/strong\u003e - 1-5 days from Bengaluru warehouse, delivered in 7-8 days\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Support\u003c\/strong\u003e - Technical assistance available round-the-clock\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer Warranty\u003c\/strong\u003e - 1-year comprehensive coverage\u003c\/p\u003e\n\n\u003ch2\u003eCommon Applications\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlashlights \u0026amp; Torches\u003c\/strong\u003e - Emergency lighting and tactical applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Tools\u003c\/strong\u003e - Cordless drills and hand tools\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePortable Devices\u003c\/strong\u003e - Vaping devices, e-cigarettes, and personal electronics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIY Projects\u003c\/strong\u003e - Robotics, Arduino projects, and custom builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmergency Power\u003c\/strong\u003e - Backup power supplies and power banks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhotography\u003c\/strong\u003e - Camera flashes and external lighting rigs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedical Devices\u003c\/strong\u003e - Portable medical equipment and monitors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Equipment\u003c\/strong\u003e - Backup power for sensors and controllers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eIn the Box:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1x 3.7V 2500mAh 18650 Li-Ion Battery\u003c\/li\u003e\n\u003cli\u003eProduct documentation and safety guidelines\u003c\/li\u003e\n\u003cli\u003eTechnical specifications sheet\u003c\/li\u003e\n\u003cli\u003eCustomer support contact information\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePerformance Features\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eHigh Energy Density\u003c\/strong\u003e - Delivers consistent power output throughout discharge cycle\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLow Self-Discharge\u003c\/strong\u003e - Retains charge longer than standard batteries\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTemperature Stable\u003c\/strong\u003e - Performs reliably across temperature ranges\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSafety Built-In\u003c\/strong\u003e - Internal protection circuits prevent overcharge and over-discharge\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLong Cycle Life\u003c\/strong\u003e - 500+ charge cycles for extended usability\u003c\/p\u003e\n\n\u003ch2\u003eSafety \u0026amp; Compliance\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eBuilt-in protection circuit\u003c\/li\u003e\n\u003cli\u003eThermal safety features\u003c\/li\u003e\n\u003cli\u003eCompliant with international standards\u003c\/li\u003e\n\u003cli\u003eProper handling guidelines included\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eShipping \u0026amp; Delivery\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eFast Delivery:\u003c\/strong\u003e 7-8 days to most locations in India\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarehouse:\u003c\/strong\u003e Bengaluru\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTracking:\u003c\/strong\u003e Real-time order tracking available\u003c\/p\u003e\n\n\u003ch2\u003eWarranty \u0026amp; Support\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003e7-day warranty on manufacturing defects\u003c\/strong\u003e - Covers manufacturing defects\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e24\/7 Support\u003c\/strong\u003e - Email and WhatsApp assistance\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7-Day Returns\u003c\/strong\u003e - Full refund or replacement for defective items\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Guidance\u003c\/strong\u003e - Technical advice for applications\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eIs this battery 100% authentic?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes, absolutely. We source all products from authorized distributors with full authentication verification. Every battery undergoes quality checks before dispatch.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eWhat is the warranty period?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eThis battery comes with a 7-day warranty on manufacturing defects covering all defects in materials and workmanship. The warranty is valid from the date of purchase.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eHow long does shipping take?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eWe offer fast 1-5 day shipping, 7-8 day delivery to most locations in India from our Bengaluru warehouse. Express options may be available for urgent orders.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eCan I use this battery in any device?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eThe 18650 is a standard size used in many devices, but compatibility depends on your specific device. Check your device's manual or contact our support team for verification before purchase.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eWhat's the lifespan of this battery?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eThis battery typically supports 500+ full charge cycles. Actual lifespan depends on usage patterns, charging practices, and storage conditions.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eDo you provide technical support?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes, our expert team provides 24\/7 technical support via email and WhatsApp. We can assist with compatibility, troubleshooting, and best practices.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eWhat's your return policy?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eWe offer a 7-day return policy on defective items with full refund or replacement. Items must be unused and in original packaging.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eAre bulk discounts available?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes! We offer wholesale pricing for orders of 10+ units. Contact our sales team for custom bulk quotes and pricing.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eHow should I store this battery?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eStore in a cool, dry place away from moisture and extreme temperatures. Keep the protective cap on and store at 50% charge for long-term storage.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eIs there a charger included?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eThe battery is sold separately. We recommend using a quality 18650 charger with overcharge protection. Contact us for charger recommendations.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eCustomer Support\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e support@theengineerstore.in\u003c\/p\u003e\n\u003ch2\u003eBuy 3.7v 2500mah 18650 Li-Ion Battery Online in India\u003c\/h2\u003e\n\u003cp\u003ePurchase the \u003cstrong\u003e3.7v 2500mah 18650 Li-Ion Battery\u003c\/strong\u003e online at \u003ca href=\"https:\/\/theengineerstore.in\"\u003eThe Engineer Store\u003c\/a\u003e - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on \u003cstrong\u003e3.7v 2500mah 18650 Li-Ion Battery\u003c\/strong\u003e with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.\u003c\/p\u003e\n\u003cp\u003eLooking to buy \u003cstrong\u003e3.7v 2500mah 18650 Li-Ion Battery\u003c\/strong\u003e at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":43773844881571,"sku":"TES-EV102846","price":180.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/4479\/7091\/products\/2_3de4af06-b168-4730-bfa2-e16bd7289390.jpg?v=1701074890","url":"https:\/\/www.theengineerstore.in\/kn\/products\/3-7v-2500mah-18650-li-ion-battery","provider":"The Engineer Store","version":"1.0","type":"link"}