BF-4J Rock Monster 1:10 4WD Off Road RC Truck Rock Crawler
Great looking Off Road RC Jeep
BF-4J Rock Monster 1:10 4WD Off Road RC Truck Rock Crawler
Great looking Off Road RC Jeep
GREAT FOR BEGINNERS
2.4GHz radio system - race multiple vehicles without any interferences
If you are looking for a realistic RC Off Road experience, this ready to run VRX 4 Wheel Drive Jeep is a great choice. This off road 4x4 RC Rock Crawler is equipped with 4 Wheel Shaft Drive, front and rear axle design, fully sealed transmission and big bored long droop shocks will enable this monster truck jeep to go over any terrain you put in front of it. Also has reinforced main frames for stiff chassis design and a high torque steering servo with metal gear will ensure long lasting service in the field.
Comes complete with 7.2V Ni-Mh batteries which offers 15 minutes of run time; a battery charger and 2.4GHz Remote controller that can reach up to 150m control range, all that is needed is 3 x AA batteries for the remote controller.
Ready to Run with 4WD Shaft Drive
Front and Rear Axle esign
Fully Covered Receiver Case
Big Bored Shocks with Long Droop
Reinforced Side Main Frames to Stiffen the Chassis Plate
Fully Sealed Central Transmission for Gear Protection
High Torque 9kg/cm Steering Servo with Metal Gear
Chromed Rims and Bumpers
Head Lights System for Option
Trailing link suspension for max articulation
Telescopic sliding universal centre driveshafts
Front CVA steering universal driveshafts
Centre compact 3-gear high torque transmission
3mm -thick Alum Front & rear bumper brackets
Please note that this is a hobby grade high-performance remote-control vehicle.
Please refer to the Care/Warranty Tab below for more information before purchasing this product.
Damages incurred in high speed impacts and crashes are not covered by warranty.
Each RC Truck consists of many parts. We stock majority of the most commonly replaceable parts. Not all spare parts are listed on our website.
The product is supplied with an instruction manual. The manual shows an exploded parts view with spare part sku numbers are indicated. Please note of the spare part sku # and email our service team on email@example.com for price and availability.
Recommended for Ages 14+
Suitable for ages under the age recommendation with Adult supervision (Noting Care and Warranty Policy)
All warranty claims are assessed on a case by case basis as per our warranty terms and conditions.
- 1 month warranty on Rechargeable Batteries
- 1 month for failure or mechanical and non-electronic parts (please see Wear and Tear section below)
- 3 month for major electronic components (esc, remote controller and receiver)
- Damages incurred to the product caused by misuse or abuse of the product, i.e. high speed impacts and crashing the product
- Tampering, or modifying of product in any kind
- Use of any unapproved 3rd party accessory with product
- Poor battery maintenance - please see Battery maintenance section below.
“Wear and Tear” parts are excluded from any Warranty when product has been used; whether in, or outside any and all parameters outlined in the products’ supplied user manual.
List of “Wear and Tear” parts:
- All Gears, their respective cogs, and Motors
- Wheels, tyres, wheel assembly and drive shafts
- Chassis, and all plastic parts
1 Month Warranty on Rechargeable Batteries.
Lithium Polymer Charging/Discharging & Safety Information
Lithium Polymer Safety Tips: Lithium Polymer cells are a tremendous advance in battery technology for RC use. However, due to the chemistry of lithium cells, there is a possibility of fire if charging is not properly done. It is unavoidable due to the nature of lithium itself. This is no different from many things we use in daily life – knives, kitchen cleaners, automobiles, for a few examples – which are inherently dangerous, but which can be used safely by adhering to simple rules and precautions.
- Batteries should NEVER be left unattended while charging.
- Be absolutely sure that the Lithium Polymer charger settings are correct for the battery pack being charged – both voltage and current settings.
- Lithium Polymer must be CHARGED and STORED in a fire-safe container like a Li-po Safe Pouch / Bag.
- Do not charge batteries near flammable items or liquids.
- Keep a dry fire extinguisher nearby or a large bucket of dry sand, which is a cheap and effective extinguisher.
- Never charge inside an automobile even when parked.
- KEEP BATTERIES AWAY from children and pets at ALL times.
Connection: Be sure that the correct polarity is observed when connecting battery packs to charger or ESC.
RED = POSITIVE (+)
BLACK = NEGATIVE (-)
Charging/Discharging: Your new battery pack arrives between 30-60% SOC depending on how it is shipped. Charge your pack fully before first use. Charge your LiPo battery pack at 5C or less on the LiPo setting only. You must use a balance charging system. Otherwise, you risk your pack becoming severely out of balance over time, which will significantly decrease the lifespan.
Ex: If charging a 4000mah LiPo pack at 1C, you would be charging it at 4 Amps.
Ex: If balance charging a 4000mah LiPo pack at 5C, you would be charging it at 20 Amps.
Please refer to your owner’s manual regarding the recommended ESC cut off voltage for your particular application prior to first use to avoid accidentally over-discharging your batteries.
Do NOT charge your LiPo packs on a NIMH/NICD charger. Your charger must be designed for LiPo cells. Do not charge above 4.2V per cell, over discharge under 3V per cell. Never leave LiPo packs unattended during charging or after a crash in your vehicle. Don’t leave the battery pack plugged into a vehicle while not in use. The pack can still discharge to an unsafe level and damage the pack even if all components are turned off.
It is dangerous to draw more power than what the pack is rated for. This will void any warranty on the pack and can also cause your battery pack to ignite into flames. The temperature of the pack should never exceed 140F degrees. If it does, you may need a pack that is rated to handle more power.
Storage Procedure: When not using your LiPo/Li-Ion battery pack, store it at 60% of the pack’s rated capacity. Make sure to cycle your packs at least once per month since leaving them on the shelf for a prolonged period of time can cause the packs to get severely out of balance, puff/swell or even go dead.
Balancing taps on LiPo/Li-Ion Packs: All LiPo/Li-Ion packs come standard with a JST-XH style balancing tap (white connector), which is compatible with most industry standard balance chargers. Always balance charge your pack before each use as this “matches” the voltage of each cell to give you the highest performance and longest life.
- Never leave batteries inside a car on a hot day or any other place where temperature may exceed 140F / 60C.
- Although environmentally friendly, lithium polymer cells must be FULLY discharged before disposal. Use a resistor setup (light bulbs, for example) to accomplish this, to avoid the possibility of a short-induced fire after disposal.
- Immediately discharge damaged batteries at 1/2 C rate and dispose.
- Do not put the loose cells in a pocket, bag, or drawer where they could short-circuit against other items, or the battery tabs could be pressed against each other.
- Do not place the loose cells on any conductive surface, such as a metal-topped table.
- We recommend purchasing pre-assembled packs rather than assembling packs from loose cells.
- Take care that the cells are not punctured, especially by metallic objects like hobby knives.
- If the electrolyte in the cells should get on your skin, thoroughly wash with soap and water. If in the eyes, rinse thoroughly with cool water. Immediately seek medical attention for this, or for burns.
- Although our batteries are now water sealed, we do not recommend submerging our batteries for extended periods of time. The battery packs will be protected during normal rc conditions.
All Lithium Polymer Batteries we carry are only approved for rc use, and may not be used in any other application. Battery discharging, charging, electric motors, spinning propellers, and flying models all have the potential for serious injury to persons and damage to property. In purchasing these products, the user agrees to accept responsibility for all such risks, and not to hold the battery manufacturer, distributors, or retailers - (all including owners and employees) -responsible for any accident, injury to persons, or damage to property.
The use of Lithium Polymer batteries in radio-controlled models is to be considered experimental, and there is no warranty, expressed or implied, by the manufacturer, distributors, or retailers with respect to the replacement of vehicles, chargers, or damage to property or person, nor any other use nor aspect unless otherwise stated.
LiPo Battery Warming Devices / ”Bumping” LiPo Packs:
Do not, under any circumstances, attempt to “heat up” your batteries or increase the voltage of a pack above 4.2V per cell using these devices or techniques. Some insidious lithium polymer retailers/distributors have suggested using these devices and techniques to increase the performance of your lithium polymer packs. THIS IS NOT SAFE AND IS LITERALLY PLAYING WITH FIRE!
Devices on the market that heat up lithium polymer batteries can increase the risk of a fire. Lithium polymer cell manufacturers suggest that exceeding 140 degrees is NOT a safe temperature for a lithium polymer cell. At 140 degrees, the pack can become unstable and very dangerous. The small increase in performance is not worth the risk of a fire. PLEASE STAY SMART AND SAFE BY NOT USING THESE PRODUCTS!
Some retailers/distributors of other brands of lithium polymer batteries have suggested that their customers and racers “bump” the voltage of their packs using settings other than the lithium polymer setting on their charger. The manufacturers of lithium polymer cells suggest a voltage range of 3V-4.2V. Increasing voltage above 4.2V per cell is not safe. You should never attempt to charge your packs beyond the voltage set for lithium polymer packs on your lithium polymer charger. Using other battery settings to “bump” the voltage beyond 4.2V per cell can cause fire and injury. The small increase in performance is not worth the risk of fire. PLEASE DO NOT USE THESE METHODS!
18650 Lithium-Ion Warning and Safety Tips:
WARNING - The user must have an appropriate understanding of the potential dangers of LITHIUM-ION BATTERIES before purchase and usage. No express or implied guarantee of compatibility, suitability, or fitness for any particular purpose or device can be made. This battery is manufactured and sold for the intended use of system integrations with proper protection circuitry or battery packs with a BMS (battery management system) or PCB (circuit board/module). This battery is neither designed nor intended to be used with an unprotected E-CIGARETTE, VAPORIZER, or similar device.
USAGE OF THIS BATTERY IS AT YOUR OWN RISK!
DO NOT USE WITH UNPROTECTED E-CIGARETTE, VAPORIZER, OR SIMILAR DEVICE
DO NOT STORE LOOSE OR IN A POCKET, PURSE, ETC. ALWAYS USE A PROTECTIVE CASE OR BOX FOR STORAGE AND TRANSPORT
BATTERIES MAY EXPLODE, BURN, OR CAUSE A FIRE IF MISUSED OR MISHANDLED
ONLY use with proper protection circuitry
DO NOT short circuit intentionally or unintentionally
KEEP AWAY from metal/conductive objects to prevent short circuiting
DO NOT use if battery, wrapper or terminal insulator is damaged or torn
DO NOT over-charge or charge above the maximum voltage rating
DO NOT over-discharge or exceed the continuous discharge rating
DO NOT modify, disassemble, puncture, cut, crush, or incinerate
DO NOT expose to liquids or high temperatures
KEEP AWAY from pets and children
ALWAYS charge in or on a fire-proof surface and never leave batteries charging unattended
ONLY use a smart charger designed for this specific type of battery
DO NOT mix and match brands and models, old and new, used and unused batteries
STOP immediately if while charging/storing/using the battery it emits an unusual smell, feels hot, changes color or shape, or appears abnormal in any way
It is your responsibility to determine that your charger or device is functioning properly
If exposed to battery electrolyte, flush with water immediately and/or immediately contact a physician or emergency services
DO NOT throw away in trash; contact your local jurisdiction for proper recycling or disposal
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