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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Description

⚡ Build. Boost. Race. Repeat. The ultimate Hot Wheels thrill awaits!

INSTANT SPEED SURGE - The booster pack accelerates your mini-car for thrilling, high-speed action.
PERFECT FOR AGES 6 - Designed to engage young minds while sparking creativity and competitive fun.
ICONIC HOT WHEELS STYLE - Includes a mini car with signature Southern California design and red line tires.
UNLEASH LIMITLESS TRACKS - Combine multiple Track Builder kits to create your own epic racecourses.
COMPACT PORTABLE DESIGN - Lightweight 493g set fits perfectly in any playroom or on-the-go adventure.

The Hot Wheels GBN81 Truck Builder Booster Pack is a dynamic 4-piece set designed for kids 6 and up, featuring a mini car and a booster that accelerates speed on custom-built tracks. Compatible with other Track Builder kits, it encourages endless creative course combinations. Powered by 2 AA batteries (sold separately), this lightweight, polypropylene set delivers iconic Hot Wheels style and high-octane fun.

Reviews

Q**P

孫が興奮していました

孫のために購入しましたが､勢い良く飛び出すのに興奮していました。購入して良かったです｡

27.01.2025

T**N

Amazing

Easy to build and my 2 year old loved it and the travel case

5.01.2025

川**淵

これって！？

孫がこれ見てたやつ❗️って興奮楽しく遊んでくれました

27.09.2025

E**L

Great set

This is an awesome set, my nephew loves it.

29.01.2025

黒**桃

使い捨ておもちゃ

アクロバット走行に子供が大喜び遊んだ後のお片付けや再度組みたてには丁寧な力加減が必要で、幼稚園児は２、３回でレールの継ぎ目を壊してしまいました。類似商品が、クレーンゲームの景品で見かけることがあり、それなりの材質で長く遊べるおもちゃではありません

12.08.2025

前**治

ケンメリ

良く出来てます。３歳くらいの子供はスタートのセットが出来ません。ゴムが強いので。

18.04.2025

A**ー

孫と遊べる☆

遊びに来た孫が真っ先に飛びついて遊んでる。

12.04.2025

ま**つ

お片付けも楽しめる！

コンパクトにしまえるところが魅力的！子供が進んで片付けます！もっとコースのパターンが変えられたら最高！

25.07.2025

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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Model Number	GBN81
Number of Pieces	4
Batteries Required?	Yes
Batteries Included	No
Material Type(s)	Polypropylene
Target Gender	Male
Manufacturer recommended age	6 years and up
Release date	May 29, 2021
Item model number	GBN81
Product Dimensions	8 x 15 x 13 cm; 493 g
ASIN	B07CGKZSCF

Hot Wheels GBN81 Truck Builder Booster Pack (Includes 1 Mini Car) [Present] [6 Years Old and Up]

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