{"title":"Lithium Ion Cylindrical Battery - 3.7v 2200mAh","handle":"lithium-ion-cylindrical-battery-3-7v-2200mah","url":"/products/lithium-ion-cylindrical-battery-3-7v-2200mah","description":"A 3.7V 2,200 mAh lithium-ion cylindrical battery with built-in protection circuitry for over-voltage, under-voltage, and over-current protection. Slim enough to fit into many project enclosures and includes a JST 2-pin cable with a genuine JST connector for smooth, snag-free connections.\n\nThe battery can deliver up to 2C peak current (4,400 mA), though sustained draws should be kept under 0.5C (approximately 1 A). The protection circuit cuts output at 2.5V to prevent over-discharge.\n\nKey Features\n\n\n2,200 mAh Capacity – Plenty of power for portable projects\n\nBuilt-In Protection – Over-voltage, under-voltage, and over-current circuitry\n\nJST 2-Pin Cable Included – Genuine JST connector, rated for 2 A\n\n3.7V Nominal – Standard lithium-ion voltage\n\n2C Peak / 0.5C Sustained – Up to 4,400 mA peak, ~1 A recommended continuous\n\n\nSpecifications\n\n\nChemistry – Lithium Ion\n\nNominal Voltage – 3.7V\n\nCapacity – 2,200 mAh\n\nCut-Off Voltage – 2.5V\n\nRecommended Charge Rate – 0.5C (1 A) or less\n\nConnector – JST 2-pin (included)\n\n\n\nSafety Warning: Only use a LiIon/LiPoly constant-voltage/constant-current charger at 0.5C (1 A) or less. Do not use NiMH, NiCd, or lead-acid chargers. Never short, bend, crush, or puncture the battery. Never charge or use unattended. Always inspect batteries and surrounding circuitry for damage or loose wiring. Polarity matches Adafruit LiPoly/LiIon chargers — other brands may have reversed polarity.\n\n\nIdeal For\n\nPortable electronics and IoT devices\nArduino and Raspberry Pi projects\nWearable technology\nBattery-powered sensor nodes\n\n\nPackage Contents\n\n1× Lithium Ion Cylindrical Battery (3.7V, 2,200 mAh)\n1× JST 2-Pin Cable\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":14449,"title":"Default Title","sku":"AF-1781","price":19.41,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":103,"option1":"Default Title"}]}