If i buy a trx4 then i have to buy a traxxas charger and battery?

You can use any charger and battery you want aslong as the electronics meet the battery requirements. I generally go for a 2s or 3s lipo any brand will work just buy a adapter or have local hobby shop change the connector if needed. Simply put. Any brand charger or battery will work with correct connector.

Can you install a brushless motor xerun axe 550 and 3s lipo batteries with this kit

Yes you can, pretty much any 1/10th scale system will fit the TRX4 line.

are there extra channels on the supplied remote for controlling lights or other accessories?

no, it only brings 5 channels and the three additional ones are to control the differential lock and the second gear

Friend in this kit can i assemble a body 12.3 "(313 mm) from a toyota 4runner 1991 wheelbase tracker?

This kit does not include a body. The wheelbase of the kit is 313mm, so a body of that size will fit.

Traxxas 1 10 Scale Trx 4 Trail And Scale Crawler

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Description

⚡ Build. Customize. Dominate the trail like a pro.

ALL WEATHER READY - Waterproof electronics let you push limits rain or shine without a second thought.
CONQUER ANY TERRAIN - Innovative portal axles deliver massive ground clearance and virtually eliminate chassis torque twist.
MASTER THE MECHANICS - Build your own 2-speed high/low transmission and remotely lock differentials for ultimate control.
CUSTOMIZABLE POWERHOUSE - Powerful 21T Titan motor and XL-5 HV ESC support multiple battery types for tailored performance.
STEP BY STEP BUILDERS DREAM - Full-color, detailed assembly guide with pre-assembled shocks makes building fun and frustration-free.

The Traxxas TRX-4 1/10 Scale Trail and Scale Crawler Chassis Kit is a premium DIY RC vehicle platform featuring innovative portal axles for superior ground clearance, a 2-speed remote transmission with lockable differentials, and waterproof electronics. Designed for enthusiasts who crave hands-on assembly, it includes a full-color guide and pre-assembled key components. Compatible with various battery types (sold separately), this kit delivers rugged off-road performance and unmatched customization potential.

Specifications

ASIN	B079X83PBM
Additional Features	Portable
Age Range Description	Kid
Battery Description	Lithium-Ion
Best Sellers Rank	#750,374 in Toys & Games ( See Top 100 in Toys & Games ) #441 in Hobby RC Crawlers
Brand Name	Traxxas
Color	Kit
Customer Reviews	4.8 4.8 out of 5 stars (204)
Educational Objective	Learning about mechanical assembly, electronics, problem-solving, and fine motor skills
Included Components	2.4GHz Radio System, Chassis kit, assembly guide
Indoor Outdoor Usage	Outdoor
Item Dimensions	20.6 x 9.8 x 10.5 inches
Item Type Name	1/10 Scale Trail and Scale Crawler
Item Weight	4155 g
Manufacturer	Traxxas
Manufacturer Maximum Age (MONTHS)	1368
Manufacturer Minimum Age (MONTHS)	168
Manufacturer Part Number	82016-4
Manufacturer Warranty Description	30 Day Warranty Against Manufacturer Defects
Material Type	TPR
Model Name	TRX-4 Chassis Kit
Model Number	82016-4
Model Year	2019
Number of Items	1
Number of Packs	1
Number of Players	1
Operation Mode	Remote Control
Power Source	Battery Powered
Size	1/10 Scale, 20.6 inches long
Theme	off-road
Toy Vehicle Form	Crawler
UPC	020334820136
Unit Count	1 Count

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