HJ808 RC Boat: Specs, Speed and What to Expect From This Budget Racer
The HJ808 is a budget ready-to-run RC speedboat sold under many shop names. It’s about 36 cm long with a deep-V hull and is listed at around 25 km/h (about 15 mph), on a 7.4 V 1100 mAh battery giving roughly 15–20 minutes of running per pack after a charge of about two hours. It uses a 2.4 GHz remote with a range quoted around 150 m, has a capsize recovery function and water-cooled motor on some versions, and is aimed at pools, ponds and calm lakes.
By Kyle HilsonUpdated: October 20264 min read
Specifications
| Item | Listed value |
|---|---|
| Length | About 36 cm |
| Top speed | About 25 km/h (15 mph) |
| Battery | 7.4 V 1100 mAh Li-ion/LiPo |
| Run time | About 15–20 min |
| Charge time | About 120 min (USB) |
| Range | About 150 m, 2.4 GHz |
| Features | Capsize recovery, low-battery alarm |
From retailer listings, checked October 2026; these are maker claims and versions vary by seller.
What to expect
For its price, the HJ808 is quick enough to be fun on a small lake and simple to use. It’s not a hobby-grade brushless boat: speed is modest, the hull is light plastic that bounces in chop, and parts support depends on the seller. Treat the run time and range as best-case figures. Faster budget boats are compared in cheap and fast RC boats.
Before the first run
- Charge the battery fully with the supplied cable.
- Check the hatch seal and lock it firmly.
- Switch on the remote first, then the boat.
- Test the propeller and rudder out of the water only for a second.
- Launch on calm water with the wind blowing toward you.
Running tips
- Stay well within range; bring it back at the low-battery warning.
- Avoid weeds, which wrap around the propeller.
- Don’t run in waves bigger than the boat can handle.
- Use the capsize recovery if it flips, then bring it in.
- Have a plan to retrieve a stranded boat, like a fishing line or a calm shore downwind.
After running
Open the hatch and dry the inside, remove the battery, wipe the hull, and let everything dry before storing. Check the propeller and rudder for damage. Store the battery partly charged at room temperature, and don’t charge a hot battery.
Pool use
The HJ808 is small enough for a large pool, but chlorine and debris can affect seals and the propeller, so rinse with fresh water afterwards and keep away from swimmers.
When to step up
If you outgrow it, hobby-grade boats with brushless motors and spare parts support are faster and tougher. Options for larger water are in best RC boat for a lake.
Hull and handling
The HJ808 uses a small deep-V hull with a single propeller and a rudder. On flat water it runs straight and turns tightly at speed, but the light hull hops over wakes and wind ripples, and hard turns at full throttle can roll it over. That’s where the capsize recovery helps: on many versions, reversing the motor or pressing a button flips the boat back upright. It works best on calm water and isn’t guaranteed in waves. Because it’s small, it’s hard to see beyond about 100 m, so keep it closer than the quoted range to avoid losing track of its direction.
For children
It’s often bought as a gift for older children. An adult should handle charging and stay nearby at the water’s edge, and children should never wade in after a stuck boat.
FAQ
How fast is the HJ808?
Listed at about 25 km/h.
How long does the battery last?
About 15–20 minutes, as listed.
Does it work in salt water?
Best kept to fresh water; rinse after any salt exposure.
Can it right itself?
It has a capsize recovery function.
More on this topic: the complete RC Boats guide covers the basics behind this article.
About 20 years in RC. Mostly boats in the NAVIGA Mini Eco Expert class, with many self-made parts; also a King Motor Baja 5B, a home-built electric plane, home-built nitro planes he has flown, and an RC helicopter. More about SwellRC
