{"product_id":"swellpro-fisherman-fd3-fd1-plus-4200mah-6s-lihv-battery","title":"SwellPro Fisherman FD3 \u0026 FD1+ 4200mAh 6S LiHV Battery","description":"\u003ch2\u003eGenuine SwellPro 4200mAh 6S LiHV Flight Battery — FD3 \u0026amp; FD1+\u003c\/h2\u003e\n\n\u003cp\u003eThe SwellPro 4200mAh 6S LiHV flight battery is the genuine replacement and spare power source for the \u003ca href=\"\/products\/swellpro-fisherman-fd3-waterproof-fishing-drone\"\u003eSwellPro Fisherman FD3\u003c\/a\u003e and \u003ca href=\"\/products\/swellpro-fisherman-fd1-waterproof-fishing-drone\"\u003eSwellPro Fisherman FD1+\u003c\/a\u003e waterproof fishing drones. Engineered specifically for the FD3 and FD1+ airframe, this battery integrates with the drone's Battery Management System (BMS) and flight controller to deliver accurate low-voltage warnings, consistent power output under bait-carrying loads, and the reliability you need when operating offshore reefs, surf beach gutters, and tidal channels around Australia.\u003c\/p\u003e\n\n\u003cp\u003eWhether you're dropping live baits onto the edge of a Queensland reef, deploying ganged hooks into Victorian surf gutters, or targeting big offshore species from the beaches of South Australia and Western Australia, your FD3 or FD1+ is only as capable as the battery keeping it in the air. Stocking one or more genuine spare batteries is the single most effective upgrade for extending your on-water drone fishing sessions.\u003c\/p\u003e\n\n\u003ch2\u003eUnderstanding 6S LiHV Chemistry — Not the Same as LiPo\u003c\/h2\u003e\n\n\u003cp\u003eThe FD3 and FD1+ use a specific chemistry called \u003cstrong\u003e6S LiHV (Lithium High-Voltage Polymer)\u003c\/strong\u003e. This distinction is critically important for safe charging and correct drone performance — and it is the most commonly misunderstood aspect of SwellPro battery management.\u003c\/p\u003e\n\n\u003ch3\u003eLiPo vs LiHV: The Critical Voltage Difference\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard 6S LiPo\u003c\/strong\u003e (used in Fisherman MAX FD2 and original FD1): Maximum charge voltage of \u003cstrong\u003e25.2V\u003c\/strong\u003e (4.2V × 6 cells)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e6S LiHV — this battery\u003c\/strong\u003e (FD3 and FD1+ only): Maximum charge voltage of \u003cstrong\u003e26.4V\u003c\/strong\u003e (4.4V × 6 cells) — approximately 5% more usable energy per charge cycle than an equivalent LiPo pack\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThat 1.2V difference per full charge cycle is meaningful over a day's fishing — and it is the reason these two battery types require completely separate, chemistry-specific chargers.\u003c\/p\u003e\n\n\u003ch3\u003eCharger Compatibility — Do Not Mix\u003c\/h3\u003e\n\n\u003cp\u003eCharger mismatches are one of the most dangerous and most common errors in multi-drone households. The rules are simple and non-negotiable:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAlways charge this battery with the \u003ca href=\"\/products\/swellpro-fisherman-fd3-fd1-plus-balance-charger\"\u003eSwellPro FD3\/FD1+ Balance Charger\u003c\/a\u003e\u003c\/strong\u003e — the dedicated LiHV charger calibrated to the correct 26.4V maximum.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDo NOT use the Fisherman MAX FD2 charger on this battery.\u003c\/strong\u003e The FD2 charger targets 25.2V (LiPo) and will undercharge these LiHV cells, reducing available flight time with no visible indication of the shortfall.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDo NOT use a standard LiPo-only charger\u003c\/strong\u003e that does not support LiHV mode — same undercharging result.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDo NOT use the FD3\/FD1+ LiHV charger on a Fisherman MAX or FD1 battery.\u003c\/strong\u003e It targets a voltage 1.2V higher than standard LiPo cells can safely accept, risking thermal runaway and fire.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eIf you run multiple SwellPro drone models, keep each charger stored with its corresponding battery and label them clearly. A mislabelled charger connected overnight is one of the most avoidable — and most serious — battery management errors you can make.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCapacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4,200 mAh\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e23.1V (3.85V × 6 cells)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum charge voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e26.4V (4.4V × 6 cells — LiHV)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6S LiHV (Lithium High-Voltage Polymer)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e716g\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e153.6 × 82.4 × 48.3mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharging temperature range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0°C to 40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApproximate charge time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~120 minutes (from near-empty at 5A)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum charging current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible drones\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSwellPro Fisherman FD3 and FD1+ ONLY\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eReal-World Flight Times by Payload — Australian Coastal Conditions\u003c\/h2\u003e\n\n\u003cp\u003eSwellPro rates the FD3 and FD1+ at up to 27 minutes of flight under no-load, calm-wind conditions. In real Australian coastal fishing conditions with bait, sinkers, and sea breeze, expect the following:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo payload, calm conditions:\u003c\/strong\u003e Up to 27 minutes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLight payload (under 500g), calm:\u003c\/strong\u003e 20–25 minutes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedium payload (500g–1.5kg), 10-knot breeze:\u003c\/strong\u003e 15–20 minutes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeavy payload (1.5–2.2kg), 15-knot headwind:\u003c\/strong\u003e 12–16 minutes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eSafety rule:\u003c\/strong\u003e Always initiate return-to-home (RTH) with at least 20% battery remaining. The return leg into a headwind requires significantly more power than the outbound run — do not chase the low-voltage warning when operating offshore over open water.\u003c\/p\u003e\n\n\u003ch2\u003eMulti-Battery Rotation: Running 3 Batteries for All-Day Sessions\u003c\/h2\u003e\n\n\u003cp\u003eOne battery gives you a single 15–20 minute fishing mission before a 120-minute charge wait. Three batteries in rotation transforms your FD3 or FD1+ into a near-continuous bait delivery system across a full dawn-to-mid-morning session.\u003c\/p\u003e\n\n\u003ch3\u003eHow the 3-Battery Rotation Works\u003c\/h3\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery 1 — In the drone:\u003c\/strong\u003e Deploy your bait rig to the reef, channel edge, or surf gutter. Complete the mission (15–20 min), land, and swap immediately. Battery 1 goes straight onto the charger.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery 2 — On the charger at 4–5A:\u003c\/strong\u003e Already charging from the moment you arrived at the beach. Reaches full charge in approximately 90 minutes from 20% reserve. Swap this in as soon as Battery 3 depletes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery 3 — Rested and ready:\u003c\/strong\u003e Install immediately when Battery 1 lands. By the time Battery 3 is depleted (~20 min later), Battery 2 has completed its recharge cycle and is ready to go again.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003eWith batteries started at staggered charge states when you arrive at the beach, you can achieve near-continuous drone fishing across a 3–4 hour dawn session — covering the most productive tide windows without long interruptions between bait deployments. Pair with the \u003ca href=\"\/products\/swellpro-fisherman-fd3-fd1-plus-balance-charger\"\u003eSwellPro FD3\/FD1+ Balance Charger\u003c\/a\u003e for correct LiHV charging throughout the rotation.\u003c\/p\u003e\n\n\u003ch2\u003eSaltwater Battery Care — Australian Beach \u0026amp; Surf Conditions\u003c\/h2\u003e\n\n\u003cp\u003eDrone batteries operated in saltwater beach environments require specific maintenance to preserve cell capacity and connector integrity over the long term. Salt air, spray, and sand are all corrosive to battery contacts and balance-lead connectors if not managed consistently after every session.\u003c\/p\u003e\n\n\u003ch3\u003eAfter Every Session\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRinse the battery exterior\u003c\/strong\u003e with a damp fresh-water cloth to remove salt deposits from the casing and connector area. Never submerge the battery or spray water directly onto the connector or balance lead.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDry thoroughly\u003c\/strong\u003e before returning to storage or charging — pay particular attention to the area around the balance connector.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAllow to cool\u003c\/strong\u003e after a flight before charging. Warm LiHV cells should reach ambient temperature before a charge cycle begins.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eStorage Between Sessions\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStore at approximately 50–60% state of charge\u003c\/strong\u003e (around 23V storage voltage) if not flying for more than 7 days. Full-charge storage accelerates long-term capacity fade in LiHV cells.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCharge only above 10°C.\u003c\/strong\u003e Cold charging at or approaching 0°C permanently reduces cell capacity over time. Before an early-morning winter beach session, bring the batteries inside the night before to warm them to room temperature.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKeep away from direct sunlight and heat\u003c\/strong\u003e during transport — a sealed vehicle on a warm Australian summer day can easily exceed 40°C, above the safe charging limit. Store batteries in a shaded bag or cool box if on-site temperatures are high.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCritical Safety Rules\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInspect before every flight.\u003c\/strong\u003e Look for swelling (puffing of the cell casing), cracks, deformation, or green-white corrosion on connectors. A swollen battery must be retired immediately — never fly with it, even if swelling appears minor.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNever charge a damaged or swollen battery.\u003c\/strong\u003e Dispose of it safely at a designated battery recycling point; do not place damaged LiHV batteries in general waste or household recycling.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAlways charge on a non-flammable surface\u003c\/strong\u003e — concrete, ceramic tile, or inside a dedicated fireproof LiHV charging bag. Never charge on carpet, wooden decking, inside a vehicle, or in an enclosed shed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eGenuine vs Aftermarket — Why It Matters Offshore\u003c\/h2\u003e\n\n\u003cp\u003eSwellPro genuine batteries are the only recommended option for FD3 and FD1+ operations. Aftermarket alternatives carry significant risks in Australian offshore fishing conditions where a battery failure means a drone in the ocean:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo BMS communication:\u003c\/strong\u003e Third-party packs typically lack the data protocol to interface with the FD3\/FD1+ flight controller's low-voltage warning system. You may receive no warning before an in-flight shutdown over open water.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncorrect voltage calibration:\u003c\/strong\u003e An aftermarket pack labelled as LiHV but charging to only 25.2V delivers reduced flight time with no visible indication of the shortfall — you'll simply return to shore earlier than expected, with no clear reason why.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnector fit and arc risk:\u003c\/strong\u003e Non-genuine connectors may fit loosely, creating intermittent power interruption mid-flight — or arc on initial connection, damaging both the battery and the drone's power input board.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty void:\u003c\/strong\u003e SwellPro's warranty on the FD3 and FD1+ is voided by the use of non-genuine batteries. Any resulting damage is not covered.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility Reference\u003c\/h2\u003e\n\n\u003cp\u003eThis battery is designed exclusively for the SwellPro Fisherman FD3 and FD1+. It is NOT compatible with:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSwellPro Fisherman FD1 (original, 2018–2020)\u003c\/strong\u003e — uses a different 6500mAh 6S LiPo battery with XT60 or XT90 connector\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSwellPro Fisherman MAX (FD2)\u003c\/strong\u003e — uses a 4500mAh 6S LiPo battery (different voltage, connector, and dimensions)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSwellPro SplashDrone 4\u003c\/strong\u003e — uses the IB4 6600mAh 4S LiPo intelligent battery (completely different voltage and connector)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e1× SwellPro 4200mAh 6S LiHV Battery (genuine OEM)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe balance charger is sold separately — see the \u003ca href=\"\/products\/swellpro-fisherman-fd3-fd1-plus-balance-charger\"\u003eSwellPro FD3\/FD1+ Balance Charger\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eComplete Your FD3 \/ FD1+ Power System\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/swellpro-fisherman-fd3-fd1-plus-balance-charger\"\u003eSwellPro FD3\/FD1+ Balance Charger\u003c\/a\u003e — dedicated LiHV charger for correct and safe charging of this battery\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/collections\/bait-release-systems\"\u003eBait release systems\u003c\/a\u003e — waterproof bait releases for FD3 and FD1+ to deploy rigs at range\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/collections\/drone-rigs-terminal-tackle\"\u003eDrone rigs \u0026amp; terminal tackle\u003c\/a\u003e — pre-tied paternoster and dropper rigs for Australian coastal species\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/collections\/fishing-drones\"\u003eFishing drones\u003c\/a\u003e — browse the full SwellPro range including the FD3 and FD1+\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/collections\/drone-batteries-chargers\"\u003eAll batteries \u0026amp; chargers\u003c\/a\u003e — genuine SwellPro batteries for every model in the range\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eDelivery \u0026amp; Support\u003c\/h2\u003e\n\n\u003cp\u003eAustralia-wide delivery. Free shipping on orders over $99. All genuine SwellPro batteries are dispatched from our Australian warehouse.\u003c\/p\u003e\n\n\u003cp\u003eNeed advice on how many batteries to run for your typical session length, guidance on LiHV storage voltage, or help choosing the right setup for the FD3 or FD1+? \u003ca href=\"\/pages\/contact\"\u003eContact the DroneFisher team\u003c\/a\u003e — we fish with FD3 and FD1+ drones in Australian saltwater conditions and can help you plan the right battery rotation for your style of drone fishing.\u003c\/p\u003e","brand":"SwellPro","offers":[{"title":"Default Title","offer_id":49632216744192,"sku":"DF-SWP-0005-01","price":371.7,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0854\/9063\/0912\/files\/fe1e18df87d5de66251fee26cd239e33.jpg?v=1788635887","url":"https:\/\/www.dronefisher.com.au\/products\/swellpro-fisherman-fd3-fd1-plus-4200mah-6s-lihv-battery","provider":"Drone Fisher","version":"1.0","type":"link"}