{"product_id":"7-4v-1500mah-li-ion-battery-pack-for-hj806-rc-boat-4-pack","title":"7.4V 1500mAh Li-ion Battery Pack for HJ806 RC Boat - 4-Pack","description":"\u003cp\u003eIn this review the 4-pack of 7.4V 1500mAh Li-ion replacement batteries is assessed for hobbyists who own the HONGXUNJIE HJ806 2.4GHz 35km\/h remote control speedboat. The bottom line: these packs deliver a close match to the original battery specifications and give consistent power for high-speed runs, making them a practical, value-oriented option when extra runtime or spare batteries are needed. The review focuses on real-world performance, charging convenience and whether the batteries meet expectations for durability and safety.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically as a replacement battery pack for the HJ806 speedboat so it fits the boat's battery bay and uses the same Standard Tamiya connector for a plug-and-play swap.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Specs:\u003c\/strong\u003e Each pack is a 7.4V Li-ion configuration using 2 x 18650 cells in series, providing a 1500mAh capacity that balances weight and run-time for high-speed operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Power:\u003c\/strong\u003e The high-capacity output helps maintain consistent throttle response during bursts and extended runs, which is important for RC racing and recreational sessions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Features:\u003c\/strong\u003e Built-in protection against overcharge, over-discharge, short circuit and overheating adds peace of mind during repeated charge cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Value:\u003c\/strong\u003e The set includes four batteries and two USB charging cables, giving immediate spare capacity and a convenient way to recharge on the go.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis pack is aimed at RC hobbyists and owners of the HJ806 speedboat who want an economical way to extend on-water session time without hunting down the original brand battery. It is also useful for racers and casual users who need multiple batteries to rotate while charging.\u003c\/p\u003e\u003cp\u003eIt may be less suitable for someone seeking ultra-lightweight competition batteries or those who require higher capacity packs for much longer run-times; users who demand the absolute maximum life per charge should compare capacity and weight trade-offs carefully.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConsistent power delivery keeps the boat performing near original specifications during high-speed runs.\u003c\/li\u003e\n\u003cli\u003eIncludes two USB charging cables and four battery packs, offering immediate extras for longer play sessions.\u003c\/li\u003e\n\u003cli\u003eBuilt-in protection circuits and higher quality cells improve safety and recharge cycle longevity.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSome users report mixed battery life between packs, so actual run-time can vary from one cell to another.\u003c\/li\u003e\n\u003cli\u003eAt 100g per battery, these are not the lightest option for users prioritizing weight reduction.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eLi-ion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e7.4V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e1500mAh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell Configuration\u003c\/td\u003e\n\u003ctd\u003e2 x 18650 in series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector\u003c\/td\u003e\n\u003ctd\u003eStandard Tamiya\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eapprox 3.53 oz (100g) per battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Contents\u003c\/td\u003e\n\u003ctd\u003e4 batteries, 2 USB charging cables\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe 4-pack 7.4V 1500mAh Li-ion battery set is a sensible choice for HJ806 owners who need dependable replacements and spare capacity at a reasonable price. It reproduces the original pack specifications, offers safety protections, and includes USB charging convenience, making it good value for most hobbyists who want more on-water time without major modifications.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill these batteries fit the HJ806 speedboat?\u003c\/strong\u003e\u003cbr\u003eYes, they are made as replacement packs that match the original specifications and use the Standard Tamiya connector for direct compatibility.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many charging cables are included?\u003c\/strong\u003e\u003cbr\u003eThe package includes two USB charging cables so you can charge multiple packs with compatible USB power sources.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre these batteries safe for repeated use?\u003c\/strong\u003e\u003cbr\u003eYes, the packs include built-in protection against overcharge, over-discharge, short circuit and overheating to help ensure safer repeated recharge cycles.\u003c\/p\u003e","brand":"Coonyard","offers":[{"title":"Default Title","offer_id":48745383100635,"sku":"B0CNXLMVNF","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61ZqFx3pCsL._AC_SL1500.jpg?v=1778833421","url":"https:\/\/gearmusthave.com\/products\/7-4v-1500mah-li-ion-battery-pack-for-hj806-rc-boat-4-pack","provider":"GearMustHave","version":"1.0","type":"link"}