{"product_id":"37v-400mah-lipo-battery-30c-yy702030-for-drones-and-diy-projects","title":"3.7V 400mAh LiPo Battery 30C YY702030 for Drones and DIY Projects","description":"\u003ch1\u003e3.7V 30C 400mAh Lithium-Polymer Rechargeable Battery (YY702030) for Drones\u003c\/h1\u003e\n\u003cp\u003eThe 3.7V 400mAh Lithium-Polymer (LiPo) battery YY702030 delivers 30C discharge for high-current applications like micro drones and RC models. This compact and lightweight rechargeable battery provides a nominal 3.7V with a 400mAh capacity, ideal for compact electronics projects where space and weight are critical.\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\u003eYY702030\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e3.7V nominal (4.2V full charge)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e400mAh\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDischarge Rate\u003c\/td\u003e\n\u003ctd\u003e30C continuous (12A max)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e7 x 20 x 30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e12g\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\u003eMicro FPV racing drone or Tiny Whoop clone\u003c\/li\u003e\n  \u003cli\u003eDIY RC car or boat with 1S brushed motor\u003c\/li\u003e\n  \u003cli\u003ePortable LED light panel or wearable\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-long-range-farm-sensor-node-kit-with-arduino-nano-plus-lora\"\u003eIoT sensor node with long battery life (ESP32, nRF24)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis battery fits most 1S micro drones with JST connectors, including Tiny Whoop, Hubsan X4, Eachine E010, and custom builds using BetaFPV or similar flight controllers. It can power any 3.7V system drawing under 12A peak, such as brushed motors, small servos, or low-power microcontrollers with a regulator if needed.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eThe battery has a 2-pin JST connector – red is positive, black is negative. Polarity must be observed. Maximum continuous discharge is 12A; never exceed this rating. For drone use, connect directly to a power distribution board or flight controller that supports 1S input.\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 Arduino?\u003c\/summary\u003e\u003cp\u003eThis 3.7V LiPo battery can power Arduino boards via the Vin or 5V pin if you use a boost converter. It directly powers 3.3V systems like ESP32. Never connect directly to 5V logic pins.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat does the 30C rating mean?\u003c\/summary\u003e\u003cp\u003e30C indicates the continuous discharge current multiplier: 30 × 0.4Ah = 12A. This battery can safely deliver up to 12 amps without damage, suitable for high-drain drone motors.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I charge this battery safely?\u003c\/summary\u003e\u003cp\u003eAlways use a dedicated 1S LiPo charger or a TP4056 module set to 4.2V. Do not exceed a charge current of 400mA (1C). Never leave charging unattended or overcharge.\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":53445132747117,"sku":"CDN-0822","price":280.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_74464ab0-1d9a-421e-a2da-0b282033d0b9.jpg?v=1781513497","url":"https:\/\/compoden.com\/products\/37v-400mah-lipo-battery-30c-yy702030-for-drones-and-diy-projects","provider":"Compoden","version":"1.0","type":"link"}