{"product_id":"3-7v-650mah-lithium-polymer-lipo-rechargeable-battery-with-protection-circuit","title":"3.7V 650mAh Lithium Polymer (LiPo) Rechargeable Battery (with Protection Circuit)","description":"\u003cp data-path-to-node=\"5\"\u003eThe \u003cb data-path-to-node=\"5\" data-index-in-node=\"4\"\u003e3.7V 650mAh Lithium Polymer (LiPo) Battery\u003c\/b\u003e provides an excellent balance of physical size and power capacity, making it a go-to power source for portable and wearable electronics. Unlike rigid cylindrical cells (like the 18650), LiPo batteries utilize a flexible foil pouch, allowing them to be incredibly thin and lightweight. This specific 650mAh cell offers enough juice to keep low-power microcontrollers and wireless modules running for extended periods without adding unnecessary bulk to your enclosure.\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003eMost standard models come equipped with a pre-attached standard 2-pin JST-PH connector, allowing for instant plug-and-play compatibility with popular development boards and charging modules. Crucially, it features an integrated Protection Circuit Module (PCM) hidden under the Kapton tape at the top of the cell, ensuring safe operation during both charging and discharging phases.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003e\u003cb data-path-to-node=\"7\" data-index-in-node=\"0\"\u003eKey Features \u0026amp; Functional Advantages:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"8\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,0,0\"\u003e\u003cb data-path-to-node=\"8,0,0\" data-index-in-node=\"0\"\u003eIntegrated Protection Circuit (PCM):\u003c\/b\u003e The built-in micro-BMS automatically cuts off power to prevent catastrophic over-charging (past 4.2V), over-discharging (below 3.0V), and accidental short-circuits, protecting both the battery and your hardware.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,1,0\"\u003e\u003cb data-path-to-node=\"8,1,0\" data-index-in-node=\"0\"\u003eHigh Energy Density:\u003c\/b\u003e Packs 650mAh of capacity into a footprint roughly the size of a matchbook, maximizing runtimes for space-constrained projects.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,2,0\"\u003e\u003cb data-path-to-node=\"8,2,0\" data-index-in-node=\"0\"\u003eStandardized JST Connector:\u003c\/b\u003e Typically terminated with a 2.0mm or 1.25mm pitch JST connector, making it instantly compatible with standard lithium charging boards (like the TP4056) and standard microcontroller battery ports.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,3,0\"\u003e\u003cb data-path-to-node=\"8,3,0\" data-index-in-node=\"0\"\u003eLow Self-Discharge Rate:\u003c\/b\u003e Holds its charge exceptionally well when not in active use, ensuring your device is ready to power on even after sitting idle for weeks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,4,0\"\u003e\u003cb data-path-to-node=\"8,4,0\" data-index-in-node=\"0\"\u003eFlexible Form Factor:\u003c\/b\u003e The soft-pack pouch design allows it to be squeezed into tight, custom 3D-printed enclosures where traditional cylindrical batteries simply cannot fit.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"9\"\u003e\u003cb data-path-to-node=\"9\" data-index-in-node=\"0\"\u003ePerfect For:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"10\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,0,0\"\u003e\u003cb data-path-to-node=\"10,0,0\" data-index-in-node=\"0\"\u003eIoT \u0026amp; Embedded Systems:\u003c\/b\u003e An ideal power source for compact ESP32, STM32, and Arduino-based sensor nodes requiring reliable 3.3V\/3.7V power for Wi-Fi or Bluetooth transmissions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,1,0\"\u003e\u003cb data-path-to-node=\"10,1,0\" data-index-in-node=\"0\"\u003eWearable Technology:\u003c\/b\u003e Thin and light enough to be embedded inside smartwatches, fitness trackers, biometric monitors, and electronic cosplay props.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,2,0\"\u003e\u003cb data-path-to-node=\"10,2,0\" data-index-in-node=\"0\"\u003eMicro RC \u0026amp; Drones:\u003c\/b\u003e Delivers the necessary sustained current draw required by small brushed DC motors in micro quadcopters (Whoops) and lightweight indoor RC planes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,3,0\"\u003e\u003cb data-path-to-node=\"10,3,0\" data-index-in-node=\"0\"\u003ePortable Audio Devices:\u003c\/b\u003e Excellent as a replacement battery for small Bluetooth speakers, wireless headphones, and portable MP3 players.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"11\"\u003e\u003cb data-path-to-node=\"11\" data-index-in-node=\"0\"\u003eTechnical Specifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"12\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,0,0\"\u003e\u003cb data-path-to-node=\"12,0,0\" data-index-in-node=\"0\"\u003eBattery Chemistry:\u003c\/b\u003e Lithium Polymer (Li-ion \/ LiPo)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,1,0\"\u003e\u003cb data-path-to-node=\"12,1,0\" data-index-in-node=\"0\"\u003eNominal Capacity:\u003c\/b\u003e 650mAh\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,2,0\"\u003e\u003cb data-path-to-node=\"12,2,0\" data-index-in-node=\"0\"\u003eNominal Voltage:\u003c\/b\u003e 3.7V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,3,0\"\u003e\u003cb data-path-to-node=\"12,3,0\" data-index-in-node=\"0\"\u003eFully Charged Voltage:\u003c\/b\u003e 4.2V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,4,0\"\u003e\u003cb data-path-to-node=\"12,4,0\" data-index-in-node=\"0\"\u003eDischarge Cut-off Voltage:\u003c\/b\u003e ~3.0V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,5,0\"\u003e\u003cb data-path-to-node=\"12,5,0\" data-index-in-node=\"0\"\u003eStandard Connector:\u003c\/b\u003e 2-Pin JST-PH (Verify pitch size, usually 2.0mm or 1.25mm, before purchase)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,6,0\"\u003e\u003cb data-path-to-node=\"12,6,0\" data-index-in-node=\"0\"\u003eApproximate Dimensions:\u003c\/b\u003e 40 mm x 25 mm x 6 mm (L x W x H)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,7,0\"\u003e\u003cb data-path-to-node=\"12,7,0\" data-index-in-node=\"0\"\u003eApproximate Weight:\u003c\/b\u003e 15 grams\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,8,0\"\u003e\u003cb data-path-to-node=\"12,8,0\" data-index-in-node=\"0\"\u003eWire Length:\u003c\/b\u003e ~50mm to 100mm (Depending on manufacturer)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K-TECHNICS","offers":[{"title":"Default Title","offer_id":42853790974023,"sku":null,"price":0.0,"currency_code":"KES","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/7637\/2039\/files\/510nrnbBdeL._AC_SL1200.jpg?v=1780775292","url":"https:\/\/www.ktechnics.com\/products\/3-7v-650mah-lithium-polymer-lipo-rechargeable-battery-with-protection-circuit","provider":"K-TECHNICS","version":"1.0","type":"link"}