HJ806 RC Boat 7.4V 2800mAh JST Battery High-Capacity Lipo Spare Part

Extend Your Water Action, Eliminate Unexpected Power Shutdowns, and Maximize Speed Performance

Running out of power mid-session or experiencing thermal voltage drops during high-speed RC boat racing can interrupt your fun and leave your vessel stranded far from shore. Standard stock batteries often lack the capacity needed for extended high-throttle runs across the water. The HJ806 RC Boat 7.4V 2800mAh JST Battery is the perfect original-fit high-capacity solution. Engineered with high-drain cells and a reliable red JST connector, this rechargeable LiPo battery ensures longer runtimes, consistent power output to the water-cooled motor, and seamless plug-and-play installation for non-stop racing. Ships worldwide.

Product Highlights

• Upgraded 2800mAh Capacity: Offers significantly longer flight and run times compared to standard stock battery options, keeping your boat powered for extended high-speed laps.

• Factory-Standard JST Connector: Features a heavy-duty red JST plug that ensures a firm, corrosion-resistant, high-current power connection inside wet marine environments.

• Consistent High-Discharge Output: Delivers steady 7.4V voltage under full throttle to support max-speed water-cooled propulsion systems.

• Precise Physical Fitment: Custom-contoured battery pack dimensions fit perfectly into the internal battery holder bay of the HJ806 hull without affecting trim balance or center of gravity.

Compatibility

For the HJ806 High-Speed RC Racing Boat only.
Full model page (specs & photos):
https://kadstoylover.com/products/hj806-high-speed-rc-racing-boat

What’s in the Box

• 1 x HJ806 RC Boat 7.4V 2800mAh JST Battery

Install Tips

• Inserting Battery into Hull Bay: Slide the 2800mAh battery pack into the hull's designated compartment and tighten the velcro retaining strap securely to avoid shift during high-speed turns.

• Connecting Power Cable: Firmly press the red JST plug into the boat's ESC power intake harness until fully seated, keeping wires clear of rotating drive shafts.

• Hull Sealing Check: Ensure the internal battery wires do not pinch when closing and locking the double waterproof hatch covers.

• Charging & Maintenance Care: Always use a balance charger compatible with 7.4V 2S LiPo batteries, and allow the pack to cool down before recharging or long-term storage.

Support & Warranty

• 3-month warranty on manufacturing defects
• Ships worldwide