Lithium batteries are problematic because they deliver too much punch (discharge rating). Currently a popular home-grown trend is to use lithium batteries. Batteries: Upgrading batteries give more speed gain than motors but again you have to match the right battery to the right motor to have the car last. 24v is where the 775s are at their best and are unstoppable beasts. At 18v they deliver more speed as the 550s but with a ton more low-end power and durability. Our Performance 775 Motors will run at 12v, 18v, or 24v. Our Performance 550 motors are designed to run at 12v and are often used with 18v SLA batteries (not warrantied). Using a motor from a radio controlled car that weighs 5lbs is a recipe for failure. Our motors are the only motors specifically marketed as upgraded motors for ride-ons. At 24v the motors usually will not last a day. Some people do run them at 18 volts but eventually they fail. Matching them is as important to a ride-on as having a motor, transmission, and rear-end that all work together in a real car: Motor: Stock 550 motors (which come in most vehicles) are only designed for 12 volts. One of the most common errors in modifying is mismatching the batteries, motors and gears. We recommend replacing them if the vehicle is 3+ years old. Are the switches strong? There's no way to visually inspect this. They may not handle the increased amp draw that comes with speed and you'll blow fuses. Is the wiring strong? Wires that are dried out will likely have corrosion on the inside. Do the tires have life left? Tires with holes will break gears. Is the frame damaged or showing white stress marks around the rear axle mounts or gearbox seating area? This is critical damage that is not fixable. If it's bent you will melt gearbox housings at higher rpm's. Things to check include: - Is the rear axle bent? You have to roll it on a flat surface to see the bend. What was a minor problem in a stock vehicle can become a major problem when you add more power. Inspect your car to make sure it's in good enough condition for modifying.
![roll wheel faster despotism 3k roll wheel faster despotism 3k](https://cs4.gtaall.com/screenshots/4dc09/2013-11/original/52ce83ba1d85d7eb268a70ef58e2812a0abfe606/134234-3.jpg)
We find the best cars for modifying are the Powerwheels 12 volt vehicles (except Smartdrive) and Kid Trax 12 volt vehicles. There's also cars that are too small to add speed with your kid's safety in mind.
![roll wheel faster despotism 3k roll wheel faster despotism 3k](https://i.redd.it/luw171gbtmq31.jpg)
![roll wheel faster despotism 3k roll wheel faster despotism 3k](https://i.redd.it/23ej2b3oua311.jpg)
The ride-on market is flooded with cheap chassis that have gearboxes and electronics which can't take any more power without major headaches. Pick the right car: Just like with real cars, it's important to start with a vehicle that can take modifications well. A proper setup should last until your child outgrows the car. Quality motors, batteries, and gears cost money to develop and produce. Remember that the first rule of motorsports is that the more you spend the faster you go. So your kid wants to go faster but you have no clue where to begin? A few minutes spent reading this article will save you hours of headaches and possibly hundreds of dollars.