What kind of batteries does the booster take?

If your handy with simple electronics you can get like a charger. I used the one for my old braun electric shaver. Just cut off the end that attaches to the shaver. Buy some alligator clamps like at lowes and attach the positive and negative cables to the clamps. Then just clamps negative to where the negative side of the battery would go.then same for positive. Or unscrews the botton and attach each lead to the motor. I did it and works fine. Kept using batteries for my nephew. Recently i took built in motor for an air mattress air pump. I had to modify everything but pretty fun. It kinda overpowered now launching car had to have a tunner on the exit because they catch air but the tunnel took care of that.

Is this powerful enough to launch it through the infinity loop?

No. It’s great to regain speed with a long stretch of track but it will not work with the infinity loop (we have one )

How do you select either of the two speeds mentioned in the description?

Hi Jon, Unfortunately, there is only on or off. The listing description is not entirely accurate. It is a different version of the booster that has two speeds. I have submitted for it to be changed but since many sellers contribute to the listing description it is not guaranteed to be corrected. It does offer a high-speed boost, I have seen some comments offering it is not a fast boost - I think in that scenario it is the width of the car that is not allowing it to be "boosted" enough. My grandson and I use these boosters quite a bit and find they give a car enough of a boost to make a full loop, some even two. I would also recommend using quality batteries. Thanks!

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🚀 Boost your track, boost your game—unleash the ultimate Hot Wheels thrill!

READY TO RACE - Compact, lightweight design with no assembly required—just add batteries.
POWER PACKED PLAY - Includes a power booster to amplify speed and excitement.
SEAMLESS EXPANSION - Perfect add-on to any Hot Wheels Track Builder set for extended play.
SKILL BUILDING FUN - Develops problem-solving skills through hands-on creativity.
ENDLESS TRACK INNOVATION - Reconfigurable pieces unlock limitless stunt and race designs.

The Hot Wheels Track Builder Booster Pack (GBN81) is a dynamic multicolor playset featuring 4 connector pieces, including a power booster that requires 2 D batteries (not included). Designed for kids aged 6-10, it enhances existing Hot Wheels Track Builder sets by enabling endless custom stunt and race configurations while fostering problem-solving skills. Compact and assembly-free, it’s the perfect upgrade for extended, creative play.

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TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

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The delivery time was excellent, and the packaging was secure.

2 months ago

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Product Dimensions	8 x 15 x 13 cm; 493 g
Batteries	2 D batteries required.
Manufacturer recommended age	6 - 10 years
Item model number	GBN81
Educational Objective(s)	Problem Solving Skill
Language:	Multilingual
Number of Game Players	1
Number of Puzzle Pieces	4
Assembly Required	No
Scale	1:64
Batteries Required?	Yes
Batteries Included?	No
tech_spec_battery_description_toys	Alkaline
Material Type(s)	TPR
Remote Control Included?	No
Color	Multicolor
ASIN	B07CGKZSCF

Hot Wheels Track Builder Booster Pack Playset, Multicolor (GBN81)

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