{"product_id":"18650-2500mah-37v-li-ion-rechargeable-battery-button-top","title":"18650 2500mAh 3.7V Li-ion Rechargeable Battery – Button Top","description":"\u003cp\u003eThe \u003cstrong data-start=\"1241\" data-end=\"1304\"\u003e18650 2500mAh 3.7V Li-ion Rechargeable Battery – Button Top\u003c\/strong\u003e is a cylindrical lithium-ion power cell designed to deliver stable rechargeable energy for compatible torches, electronics projects, and battery-powered devices. \u003cbr\u003e\u003cbr\u003eThey are also known as a 18650 lithium battery, 18650 rechargeable cell, 3.7V Li-ion battery, button-top 18650, lithium-ion power cell.\u003c\/p\u003e\r\n\u003cp\u003eDesigned for tech enthusiasts, makers, and electronics users across New Zealand, this 18650 Li-ion battery delivers dependable power for projects and devices where button-top compatibility is essential.\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003e• Reliable 3.7V lithium-ion output for stable performance\u003cbr\u003e• Rechargeable – lower long-term cost than disposables\u003cbr\u003e• Button-top terminal improves compatibility with spring-contact devices\u003cbr\u003e• Ideal for Arduino, ESP32, Raspberry Pi power projects\u003cbr\u003e• Compact energy storage for torches and portable electronics\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eFeatures of the 18650 2500mAh 3.7V Li-ion Rechargeable Battery – Button Top:\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003e• 18650 standard cylindrical size\u003cbr\u003e• 2500mAh capacity\u003cbr\u003e• 3.7V nominal voltage\u003cbr\u003e• Button-top positive terminal\u003cbr\u003e• Lithium-ion rechargeable chemistry\u003cbr\u003e• Low self-discharge rate\u003cbr\u003e• Compatible with protected battery circuits\u003cbr\u003e• Lightweight and compact form factor\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eApplications for the 18650 2500mAh 3.7V Li-ion Rechargeable Battery – Button Top:\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003e• LED torches and flashlights\u003cbr\u003e• DIY electronics projects\u003cbr\u003e• Arduino and ESP32 power supplies\u003cbr\u003e• Raspberry Pi battery projects\u003cbr\u003e• Battery packs with protection circuitry\u003cbr\u003e• Portable electronics\u003cbr\u003e• Test benches and prototyping\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This battery is compatible only with devices designed to accept button-top 18650 cells. Many torches and electronics rely on the raised positive terminal to ensure consistent electrical contact.\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"color: #00ff00;\" data-mce-mark=\"1\"\u003e✔\u003c\/span\u003e Compatible with button-top 18650 battery holders\u003cbr\u003e\u003cspan style=\"color: #00ff00;\" data-mce-mark=\"1\"\u003e✔\u003c\/span\u003e Suitable for devices with built-in battery protection\u003cbr\u003e\u003cspan style=\"color: #ff0000;\" data-mce-mark=\"1\"\u003e✖\u003c\/span\u003e Not compatible with flat-top-only devices\u003cbr\u003e\u003cspan style=\"color: #ff0000;\" data-mce-mark=\"1\"\u003e✖\u003c\/span\u003e Not suitable for devices without battery protection\u003c\/p\u003e\r\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications:\u003cbr\u003e\u003c\/strong\u003e\u003c\/h3\u003e\r\n\u003cp\u003eBattery Type: Lithium-Ion (Li-ion).\u003cbr\u003eForm Factor: 18650.\u003cbr\u003eCapacity: 2500mAh.\u003cbr\u003eNominal Voltage: 3.7V.\u003cbr\u003eMax Charge Voltage: 4.2V.\u003cbr\u003eRechargeable: Yes.\u003cbr\u003eLength: ~67mm.\u003cbr\u003eDiameter: 18mm.\u003cbr\u003eTerminal Type: Button Top (raised positive terminal).\u003cbr\u003eApplications: Torches, DIY Electronics, Battery Packs, Prototyping.\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003ePackage includes:\u003c\/strong\u003e 1x 18650 2500mAh 3.7V Li-ion Rechargeable Battery – Button Top.\u003cbr\u003e\u003cbr\u003e*Does not include Battery charger, battery holder, protection PCB, torch, electronic device. The image is for illustrative purposes only. Due to variations in camera settings, lighting, manufacturing processes, monitors, and supply, colours may differ. Product appearance and specifications are subject to change without notice.\u003cbr\u003e\u003cbr\u003ePeople also search for: 18650 battery, button top 18650, li-ion rechargeable battery, torch battery 18650, lithium battery 3.7v, arduino battery power\u003c\/p\u003e\r\n\u003cp\u003eCombine \u0026amp; Save. Explore our range of cables, parts and accessories.\u003c\/p\u003e\r\n\u003cp\u003eWe offer \u003cstrong\u003e\u003cstrong\u003ebulk discounts\u003c\/strong\u003e\u003c\/strong\u003e to New Zealand-based \u003cstrong\u003e\u003cstrong\u003ebusinesses\u003c\/strong\u003e, \u003cstrong\u003eschools\u003c\/strong\u003e, \u003c\/strong\u003eand \u003cstrong\u003e\u003cstrong\u003egovernment agencies\u003c\/strong\u003e — \u003cstrong\u003econtact us for pricing on larger orders!\u003cbr\u003e\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cdiv\u003e\u003cstrong\u003eWarranty \u0026amp; Returns:\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/div\u003e\r\n\u003cdiv\u003e14-day 'change of mind' return in unused condition for a refund less shipping fees.\u003cbr\u003e1-Year return-to-base refund or replacement guarantee.\u003cbr\u003e\u003cstrong\u003e\u003cstrong\u003e\u003cstrong\u003e\u003cbr\u003eQuestions \u0026amp; Answers:\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\u003cp data-start=\"5154\" data-end=\"5253\"\u003e\u003cstrong data-start=\"5154\" data-end=\"5187\"\u003eQ: Is this battery protected?\u003c\/strong\u003e\u003cbr data-start=\"5187\" data-end=\"5190\"\u003e A: No. This battery does not include a built-in protection PCB.\u003c\/p\u003e\r\n\u003cp data-start=\"5255\" data-end=\"5354\"\u003e\u003cstrong data-start=\"5255\" data-end=\"5289\"\u003eQ: Can I use this in my torch?\u003c\/strong\u003e\u003cbr data-start=\"5289\" data-end=\"5292\"\u003e A: Yes, if your torch requires a \u003cstrong data-start=\"5325\" data-end=\"5345\"\u003ebutton-top 18650\u003c\/strong\u003e battery.\u003c\/p\u003e\r\n\u003cp data-start=\"5356\" data-end=\"5458\"\u003e\u003cstrong data-start=\"5356\" data-end=\"5389\"\u003eQ: What charger should I use?\u003c\/strong\u003e\u003cbr data-start=\"5389\" data-end=\"5392\"\u003e A: A charger specifically designed for \u003cstrong data-start=\"5431\" data-end=\"5457\"\u003e18650 Li-ion batteries\u003c\/strong\u003e.\u003c\/p\u003e\r\n\u003cp data-start=\"5460\" data-end=\"5592\"\u003e\u003cstrong data-start=\"5460\" data-end=\"5510\"\u003eQ: Is this safe for Arduino or ESP32 projects?\u003c\/strong\u003e\u003cbr data-start=\"5510\" data-end=\"5513\"\u003e A: Yes, when used with appropriate voltage regulation and protection circuitry. \u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eWe welcome \u0026amp; answer all questions.\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003c\/div\u003e","brand":"Techexpress NZ","offers":[{"title":"Default","offer_id":42614044819554,"sku":"18650-LIION-2500-BTN-NZ","price":5.79,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1907\/5887\/files\/18650-2500mah-3-7v-li-ion-rechargeable-battery-button-top_TP0Y4VF1Z1BY.jpg?v=1772932989","url":"https:\/\/www.techexpress.co.nz\/products\/18650-2500mah-37v-li-ion-rechargeable-battery-button-top","provider":"Techexpress NZ","version":"1.0","type":"link"}