What exactly do I need to purchase so that i don't have to continually replace AAA batteries for the City Cargo Train set?

Lego 8878 Power Functions rechargeable battery, and 8887 transformer/charger (for 110V countries).

Are the power functions from this compatible with lego creator horizon express (10233)?

Yes. I think all of modern Lego trains use the same power functions components.

I would like to assemble this on a train table. What are the dimensions of the assembled set?

It's a circle track. It probably would fit on a wide table - like a Ping Ping table.

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🚀 Build the Future of Fun with LEGO!

ENDLESS CREATIVITY - Encourages imaginative play and storytelling.
BATTERY POWERED FUN - Experience the thrill of a fully functional train.
PERFECT FOR ALL AGES - Designed for ages 6 and up, fun for the whole family!
QUALITY YOU CAN TRUST - Made from durable, high-quality plastic.
UNLEASH YOUR IMAGINATION - Build and operate your own cargo train!

The LEGO City Cargo Train 7939 is a dynamic building set featuring 825 pieces, designed for imaginative play. With its battery-operated functionality, this multicolored train set measures 34.64 x 1.96 x 4.72 inches, making it a perfect addition to any LEGO collection. Ideal for children aged 6 and up, it promotes creativity and storytelling while ensuring hours of engaging fun.

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€ 969.56

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Greecestore

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Item Weight	2.9 Kilograms
Size	ys/m
Item Dimensions	34.64 x 1.96 x 4.72 inches
Number of Pieces	825
Theme	Vehicle
Subject Character	Train
Color	Multicolor
Manufacturer Minimum Age (MONTHS)	72.0
Special Features	Battery Operated
Educational Objective	Imagination Development
Material Type	Plastic

LEGO City Cargo Train 7939

Description

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