{"product_id":"darwinfpv-onelink-2s-3s-4s-battery-parallel-charger","title":"DarwinFPV OneLink Battery Parallel Charger 2S\/3S\/4S LiPo\/LiPo-HV, XT30 Input, Parallel Board","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eDarwinFPV OneLink Battery Parallel Charger for 2S\/3S\/4S LiPo\/LiPo-HV packs is designed to improve multi-battery charging efficiency and simplify operation while adding layered protection for parallel charging workflows.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eParallel charging for same-model batteries to reduce charging and balancing time compared with charging packs one by one.\u003c\/li\u003e\n\u003cli\u003eReduced repeated plugging\/unplugging by charging multiple batteries in a single setup.\u003c\/li\u003e\n\u003cli\u003eVoltage balancing across all cells to minimize overall voltage difference and improve charging efficiency.\u003c\/li\u003e\n\u003cli\u003eSafety protections: short-circuit protection, overcurrent protection, and independent fuses for each port.\u003c\/li\u003e\n\u003cli\u003eCompatible with common balance chargers (examples shown: ToolkitRC, ISDT, HotRC).\u003c\/li\u003e\n\u003cli\u003eHardware: FR-4 1.6mm thick PCB board + 2OZ thick copper foil; rated to handle 30A high current.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor setup questions or after-sales support, contact support@rcdrone.top or visit https:\/\/rcdrone.top\/.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eONE-LINK 2S Battery Parallel Charger\u003c\/th\u003e\n\u003cth\u003eONE-LINK 3S Battery Parallel Charger\u003c\/th\u003e\n\u003cth\u003eONE-LINK 4S Battery Parallel Charger\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e8.4-8.7V\u003c\/td\u003e\n\u003ctd\u003e12.6-13.05V\u003c\/td\u003e\n\u003ctd\u003e16.8-17.4V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging Current\u003c\/td\u003e\n\u003ctd\u003e2A x 8PCS\u003c\/td\u003e\n\u003ctd\u003e2A x 8PCS\u003c\/td\u003e\n\u003ctd\u003e3A x 4PCS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Battery\u003c\/td\u003e\n\u003ctd\u003eLipo\/Lipo-HV (2S)\u003c\/td\u003e\n\u003ctd\u003eLipo\/Lipo-HV (3S)\u003c\/td\u003e\n\u003ctd\u003eLipo\/Lipo-HV (4S)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEqualizing current\u003c\/td\u003e\n\u003ctd\u003e2A\u003c\/td\u003e\n\u003ctd\u003e2A\u003c\/td\u003e\n\u003ctd\u003e3A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Interface\u003c\/td\u003e\n\u003ctd\u003eXT30\u003c\/td\u003e\n\u003ctd\u003eXT30\u003c\/td\u003e\n\u003ctd\u003eXT30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Interface\u003c\/td\u003e\n\u003ctd\u003eXH-JST 3P\u003c\/td\u003e\n\u003ctd\u003eXH-JST 4P\u003c\/td\u003e\n\u003ctd\u003eXH-JST 5P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e2.4x5x11.4\u003c\/td\u003e\n\u003ctd\u003e2.4x5.8x12\u003c\/td\u003e\n\u003ctd\u003e2.4x4.6x12.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e79.3g\u003c\/td\u003e\n\u003ctd\u003e85.1g\u003c\/td\u003e\n\u003ctd\u003e62.6g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat’s Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eONE-LINK 2S \/ 3S \/ 4S Battery Parallel Charger (version dependent)\u003c\/li\u003e\n\u003cli\u003eBalance Head Extension Cable\u003c\/li\u003e\n\u003cli\u003eXT60 to XT30 adapter cable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCharging Notes \u0026amp; Safety\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eNot recommended to parallel charge batteries with a capacity difference greater than 30% (example: mixing 500mAh and 1000mAh), as it can significantly extend balancing time.\u003c\/li\u003e\n\u003cli\u003eNot recommended to parallel charge batteries with a large voltage difference (example: mixing single 3.6V and single 3.9V), as it can significantly extend balancing time.\u003c\/li\u003e\n\u003cli\u003eDo not leave the device unattended while charging.\u003c\/li\u003e\n\u003cli\u003eRC model products are not toys; ensure the charger is configured correctly and wiring is connected properly.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\u003cdiv class=\"details-gallery\"\u003e\n\u003cimg alt=\"DarwinFPV OneLink Battery Parallel Charger with 8 ports for fast parallel charging of matching LiPo packs\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DarwinFPV-OneLink-2S-3S-4S-Battery-Parallel-Charger.jpg?v=1778096219\"\u003e\u003cp\u003eCharge up to eight same-model LiPo\/LiPo-HV packs in parallel to reduce waiting time and simplify your charging routine.\u003c\/p\u003e\n\u003cimg alt=\"Eight batteries connected to the OneLink parallel charging board to cut down repeated plugging and unplugging\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DarwinFPV-OneLink-2S-3S-4S-Battery-Parallel-Charger_37fe5435-21fa-4da8-909f-6cd5e1104b03.jpg?v=1778096226\"\u003e\u003cp\u003eA single setup handles multiple packs at once, helping reduce frequent battery swaps between flights.\u003c\/p\u003e\n\u003cimg alt=\"Voltage balancing workflow comparison highlighting reduced total charge time with the OneLink parallel charger\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DarwinFPV-OneLink-2S-3S-4S-Battery-Parallel-Charger_58db70c4-eadf-4a04-b5bf-b12355a12cf2.jpg?v=1778096233\"\u003e\u003cp\u003eCell balancing across connected packs helps minimize voltage differences for a more efficient, consistent charge.\u003c\/p\u003e\n\u003cimg alt=\"Close-up of independent fuse protection and balance ports for layered safety during parallel charging\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DarwinFPV-OneLink-2S-3S-4S-Battery-Parallel-Charger_044764ef-e2a2-4a28-a1ef-9e5850ee4801.jpg?v=1778096240\"\u003e\u003cp\u003eBuilt-in short-circuit and overcurrent protection plus independent fuses add extra safeguards for each port.\u003c\/p\u003e\n\u003cimg alt=\"XT30 input on the OneLink board with compatibility callout for common balance chargers like ToolkitRC and ISDT\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DarwinFPV-OneLink-2S-3S-4S-Battery-Parallel-Charger_1d29b20e-ef81-4c0e-8d75-c8b403eb49c3.jpg?v=1778096247\"\u003e\u003cp\u003eWorks with many popular balance chargers via the XT30 input for easy plug-and-play use.\u003c\/p\u003e\n\u003cimg alt=\"FR-4 1.6mm PCB and 2oz copper details for stable high-current performance on the charging board\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DarwinFPV-OneLink-2S-3S-4S-Battery-Parallel-Charger_cf27eda2-81d1-44bd-ae25-4641eb6c7429.jpg?v=1778096255\"\u003e\u003cp\u003eFR-4 board construction with thickened copper foil supports stable high-current charging and heat dissipation.\u003c\/p\u003e\n\u003cimg alt=\"DarwinFPV OneLink 2S\/3S\/4S parallel charger specifications table for input voltage, current, ports, and size\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DarwinFPV-OneLink-2S-3S-4S-Battery-Parallel-Charger_d76834dd-fa0c-429e-a521-835d46f5b9fe.jpg?v=1778096261\"\u003e\u003cimg alt=\"Packing list for OneLink 2S\/3S\/4S parallel charger kit with board, balance extension cable, and XT60 to XT30 adapter\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DarwinFPV-OneLink-2S-3S-4S-Battery-Parallel-Charger_7dc2c6ec-e8a5-4d66-862e-1359c3c90ee2.jpg?v=1778096268\"\u003e\n\u003c\/div\u003e","brand":"DarwinFPV","offers":[{"title":"2S Battery Parallel Charger \/ 2S 500mAh 2PCS","offer_id":52563615023328,"sku":"DarwinFPV_OneLink_2S_3S_4S_12ef44-1","price":51.19,"currency_code":"USD","in_stock":true},{"title":"2S Battery Parallel Charger \/ 2S 500mAh 4PCS","offer_id":52563615056096,"sku":"DarwinFPV_OneLink_2S_3S_4S_12ef44-2","price":74.99,"currency_code":"USD","in_stock":true},{"title":"2S Battery Parallel Charger \/ 2S 500mAh 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