{"product_id":"bt2-0-550mah-1s-battery-4pcs","title":"BetaFPV BT2.0 550mAh 1S LiHV Battery 3.8V 40C\/80C 2.09Wh for Whoop Drones (4PCS)","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe \u003ca href=\"https:\/\/rcdrone.top\/collections\/betafpv\" title=\"BETAFPV\"\u003eBetaFPV\u003c\/a\u003e BT2.0 550mAh 1S Battery (4PCS) is a 1S LiHV battery designed for 1S whoop drones, focusing on stable output and reduced voltage sag. It is rated at 40C continuous \/ 80C burst and uses the BetaFPV BT2.0 connector to help lower connector resistance for more efficient discharge and longer usable flight time on 75–80mm whoops.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBT2.0 connector design upgrades the crimped pins to a 1.0mm banana connector and increases cross-sectional area to reduce internal resistance.\u003c\/li\u003e\n\u003cli\u003e40C (continuous) \/ 80C (burst) discharge rating for stronger 1S performance.\u003c\/li\u003e\n\u003cli\u003eDesigned to help minimize voltage sag and reduce low-voltage warning interruptions during flight.\u003c\/li\u003e\n\u003cli\u003eStable current\/voltage output and high efficiency for 1S brushless drones.\u003c\/li\u003e\n\u003cli\u003eCompatible use case stated for BETAFPV 1S whoop models that use BT2.0 450mAh batteries, including Meteor75, Meteor75 HD, Meteor75 Pro, Meteor75 Pro HD, Cetus Pro, and Cetus X (double 1S battery in serial).\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eItem\u003c\/td\u003e\n\u003ctd\u003eBT2.0 550mAh 1S Battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e550mAh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge Rate (C-Rate)\u003c\/td\u003e\n\u003ctd\u003e40C \/ 80C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e3.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Type\u003c\/td\u003e\n\u003ctd\u003eLiHV (3.8~4.35V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnergy (label)\u003c\/td\u003e\n\u003ctd\u003e2.09 Wh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (image callout)\u003c\/td\u003e\n\u003ctd\u003e69.5mm \/ 2.74in (L) x 15.5mm \/ 0.61in x 6.7mm \/ 0.26in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (listed)\u003c\/td\u003e\n\u003ctd\u003e69.5*16.2*6.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector\u003c\/td\u003e\n\u003ctd\u003eBetaFPV BT2.0 connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e13.99g\/pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003e550mAh vs 450mAh (Referenced Comparison)\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eBT2.0 550mAh 1S Battery\u003c\/td\u003e\n\u003ctd\u003eBT2.0 450mAh 1S Battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e13.99g\/pc\u003c\/td\u003e\n\u003ctd\u003e12.70g\/pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimension\u003c\/td\u003e\n\u003ctd\u003e69.5*16.2*6.5mm\u003c\/td\u003e\n\u003ctd\u003e61*15*7.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eC-Rate\u003c\/td\u003e\n\u003ctd\u003e40C\/80C\u003c\/td\u003e\n\u003ctd\u003e30C\/60C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e550mAh\u003c\/td\u003e\n\u003ctd\u003e450mAh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eAdditional referenced test notes: discharge-current comparison is stated at 13.5A for the graph test; discharge is also referenced at 22A (40C).\u003c\/p\u003e\u003ch2\u003eNotes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFlight time testing note is stated as based on 4.35V–3.2V.\u003c\/li\u003e\n\u003cli\u003eInstallation note: remove the battery plate if installing this battery on Cetus Pro.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat’s Included\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e4 × BT2.0 550mAh 1S Battery\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eFor product compatibility questions or after-sales support, contact support@rcdrone.top or visit https:\/\/rcdrone.top\/.\u003c\/p\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eHow to maximize battery life: refer to the official BETAFPV support article “Battery Safety and Maximizing Battery Life”.\u003c\/li\u003e\u003c\/ul\u003e\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\u003cdiv class=\"details-gallery\"\u003e\n\u003cimg alt=\"BetaFPV BT2.0 550mAh 1S LiHV battery pack with BT2.0 connector, 3.8V 40C\/80C rating\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/BetaFPV-BT20-550mAh-1S-Battery-4PCS.jpg?v=1777655117\"\u003e\u003cp\u003eBuilt for 1S whoop drones, the BT2.0 550mAh LiHV pack delivers stable power with a high 40C\/80C discharge rating.\u003c\/p\u003e\n\u003cimg alt=\"BT2.0 550mAh 1S battery dimensions: 69.5mm long x 15.5mm wide x 6.7mm thick\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/BetaFPV-BT20-550mAh-1S-Battery-4PCS_5ae4c3fe-6290-44a3-b873-96f8a0d57f98.jpg?v=1777655127\"\u003e\u003cp\u003eCompact sizing makes it a practical fit for many 75–80mm whoop frames while adding extra capacity over smaller packs.\u003c\/p\u003e\n\u003cimg alt=\"Size comparison of BT2.0 550mAh vs 450mAh 1S whoop batteries, highlighting the longer 550mAh pack\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/BetaFPV-BT20-550mAh-1S-Battery-4PCS_999e845d-6534-4d70-8a2b-181fdb71603c.jpg?v=1777655139\"\u003e\u003cimg alt=\"Voltage vs time discharge comparison chart at 13.5A for BT2.0 550mAh 40C battery vs 450mAh 30C battery\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/BetaFPV-BT20-550mAh-1S-Battery-4PCS_2c80f20b-9061-43f7-af86-1170829303a8.jpg?v=1777655152\"\u003e\u003cp\u003eA discharge test at 13.5A highlights the 550mAh pack’s steadier voltage curve versus a 450mAh alternative.\u003c\/p\u003e\n\u003cimg alt=\"Voltage discharge curve for BT2.0 550mAh 1S battery at 22A (40C) load over time\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/BetaFPV-BT20-550mAh-1S-Battery-4PCS_2a3524cc-8ad0-42f7-9503-29815b9c460d.jpg?v=1777655169\"\u003e\u003cimg alt=\"Flight time comparison table for BT2.0 450mAh vs 550mAh 1S batteries on Meteor75, Cetus Pro and Cetus X\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/BetaFPV-BT20-550mAh-1S-Battery-4PCS_8abe4881-408a-4227-8450-2f7b130592a5.jpg?v=1777655180\"\u003e\u003cp\u003eReal-world flight time comparisons across popular BETAFPV whoops indicate longer sessions with the 550mAh option (testing noted from 4.35V to 3.2V).\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BETAFPV","offers":[{"title":"Default Title","offer_id":52448165658848,"sku":"01030008_1-1","price":27.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/1_091a33c1-d00e-493f-9caa-bed9b33cbf54.jpg?v=1777539792","url":"https:\/\/rcdrone.top\/products\/bt2-0-550mah-1s-battery-4pcs","provider":"RCDrone","version":"1.0","type":"link"}