Ride on Toy Battery Replacement

Last Updated: July 22, 2026

A ride on toy replacement battery is a sealed lead acid (SLA) battery that powers a child's motorized car, truck, or ATV, and choosing the right one comes down to matching the voltage exactly and matching or increasing the amp hours. Most ride on toys run on a 6V, 12V, or 24V battery, and when the original one stops holding a charge, a correct replacement gets the vehicle back on the driveway in minutes.

Your child is the proud owner of a ride on toy car and loves tooling around the neighborhood showing it off. But just like your own car will not go far if you skip the gas station, your child will be grounded the moment that battery goes dead or stops holding a charge. The good news is that ride on batteries are inexpensive, easy to swap, and simple to maintain once you understand how they work. This guide covers what type of battery these toys use, how to pick the right size, how to charge and store it correctly, and how to troubleshoot a toy that suddenly runs for only a few minutes.

What Kind of Battery Does a Ride On Toy Use?

Almost every ride on toy uses a sealed lead acid battery, also called an SLA or AGM battery. These are the same rechargeable, spill proof batteries found in alarm systems, mobility scooters, and backup power supplies. They are sealed, which means there is no liquid to top off and no risk of acid leaking inside a toy a child sits on top of.

Ride on toys use SLA batteries for three reasons: they are inexpensive, they deliver a lot of current for their size, and they tolerate the repeated deep discharges that come with a child running the toy until it slows down. Lithium batteries are lighter, but they cost far more and are rarely used in mass market ride on vehicles. When you shop for a replacement ride on toy battery, you are almost always looking for a sealed lead acid battery in a specific voltage and amp hour rating. AJC manufactures these SLA batteries as direct fit replacements, delivered charged, sealed, and ready to install.

How Do I Know What Size Battery I Need? Voltage and Amp Hours Explained

Two numbers define a ride on battery: voltage and amp hours. You must match the voltage exactly, and you can match or increase the amp hours.

Voltage is the power the toy is designed to run on. The three common ratings are 6V, 12V, and 24V. Using the wrong voltage will either fail to run the toy or damage its motor and wiring, so this number is not negotiable. The fastest way to confirm it is to read the label printed on the old battery or check the sticker inside the battery compartment.

Amp hours, written as Ah, measure how much energy the battery holds. Think of amp hours like the size of a gas tank in your family car. The bigger the tank, the longer you drive between fill ups. The more amp hours a battery has, the longer the toy runs between charging sessions. A 6V battery might hold 4Ah to 7Ah, while a 12V battery commonly ranges from 7Ah up to 12Ah or more. As long as the physical size fits the compartment and the voltage matches, a higher amp hour battery is a straight upgrade in runtime.

Can I Upgrade to a Higher Amp Hour Battery?

Yes. The battery that ships with a ride on toy is usually just powerful enough to run the vehicle and nothing more. When you replace it, or when you want a spare to keep the four wheel fun going, you can often choose an AJC battery with the same voltage but higher amp hours.

The result is longer runtime on a single charge with no downside to the motor, because voltage stays the same. The one thing to watch is physical fit. A higher capacity battery is sometimes slightly larger, so check the dimensions against your battery compartment before ordering. In most cases you can find a higher amp version that still drops neatly into the original space. If the toy currently runs for 40 minutes on a full charge, a battery with roughly double the amp hours can push that closer to an hour or more.

How Do I Replace a Ride On Toy Battery? Step by Step

Replacing a ride on battery takes about ten minutes and requires little more than a screwdriver.

1. Turn the toy off and make sure it is unplugged from any charger.
2. Locate the battery compartment. It is usually under the seat or hood, secured by a few screws or a snap latch.
3. Note how the old battery is wired before you disconnect anything. Take a photo with your phone so you can match the connections later.
4. Disconnect the battery connector or the individual terminal wires. Remove the old battery.
5. Read the voltage and amp hour rating on the old battery label. This is your reference for the replacement.
6. Set the new battery in place and reconnect the wiring exactly as it was, matching positive to positive and negative to negative.
7. Secure the battery, close the compartment, and give the new battery a full initial charge before the first ride.

Recycle the old SLA battery rather than throwing it in the trash. Most auto parts stores and battery retailers accept them, and AJC Battery offers battery recycling as well.

What Charger Should I Use for a Ride On Toy Battery?

Invest in a decent quality battery charger matched to the voltage of the battery that runs your child's wheels. The charger that comes with a toy is usually a basic trickle charger with no automatic shutoff. It has to be unplugged after a set time limit, and if you forget, it keeps pushing current into a full battery, which overcharges it and shortens its life.

A smart charger solves this. It delivers a low amperage charge and includes circuitry that senses when the battery is fully charged. At that point it stops charging and monitors the voltage. If it detects the voltage dropping, it reactivates and tops off the charge without harming the battery. That means you can leave it connected without worrying about damage, which is exactly what you want during the off season.

Match the charger voltage to the battery. A 12V battery needs a 12V charger, and a 6V battery needs a 6V charger. Using a mismatched charger is one of the most common ways ride on batteries get ruined.

How Long Should I Charge a Ride On Toy Battery?

Charge times depend on the battery and the charger, so the manufacturer's manual is always the final word. As a general guide, many ride on toy makers direct owners to give a new battery a long initial charge before the first use, often around 18 hours, and then a shorter charge after each use. Popular brands such as Power Wheels, for example, instruct owners to charge at least 14 hours after each use and never to charge continuously for more than 30 hours on a standard charger.

If you switch to a smart charger, these time limits matter less, because the charger stops on its own once the battery is full. Confirm the recommended charge time on the label or in the manual for your specific toy, since a small 6V battery and a large 24V battery have very different requirements.

Why Won't My Ride On Toy Battery Hold a Charge?

If the car runs for only a short time, the battery is not always the culprit. Before you replace it, check these common causes.

Is the load too heavy? Every ride on toy has a manufacturer weight limit. A child near or over that limit draws more current and drains the battery faster.

Where is it being driven? Riding on grass, gravel, or up a slope demands far more power than a flat sidewalk or driveway. The same battery that lasts an hour on pavement may last half that on a lawn.

What is the temperature? SLA batteries deliver less capacity in extreme heat and cold. If the toy is being used on a very hot or very cold day, the battery will not provide the same mileage even when healthy.

How old is the battery? Ride on batteries lose capacity as they age. If yours is a few years old, has been stored discharged, or has been overcharged repeatedly, it may simply be worn out. In that case a replacement is the fix.

If the toy still underperforms after ruling out load, terrain, temperature, and connections, the battery has likely reached the end of its life.

How Do I Store a Ride On Battery in the Off Season?

Never store a ride on toy battery when it is not fully charged. Sealed lead acid batteries slowly lose charge on their own even while sitting unused, typically a few percent each month, and a battery left discharged for a long period can develop sulfation that permanently reduces its capacity. These batteries work best and last longest when their charge is maintained.

For winter or any long break, charge the battery fully first. Then either top it off every month or two, or connect a smart charger that maintains the charge automatically. Store it somewhere with a stable temperature. Avoid spots where the temperature swings from hot to cold and back, such as an uninsulated garage or shed, because those swings also shorten battery life.

How Long Do Ride On Toy Batteries Last?

With proper care, a ride on toy battery lasts about two to three years. That lifespan depends heavily on maintenance. Batteries that are charged correctly, never left discharged, and stored at a stable temperature reach the top of that range. Batteries that are overcharged, run flat and left sitting, or stored in a freezing or baking garage wear out sooner.

Keep in mind that even a well maintained battery gradually loses capacity as it ages. It will not go quite as far on a full charge as it did when it was new. So as the battery gets older, encourage your kid to keep those road trips close to home, and plan to replace it once runtime drops below what makes the toy fun.

Ride On Toy Battery Comparison: 6V vs 12V vs 24V

Voltage	Typical rider age	Common amp hours	Best for
6V	1 to 3 years	4Ah to 7Ah	Toddler cars and small single seat toys on flat, smooth surfaces
12V	3 to 7 years	7Ah to 12Ah	The most common ride on cars, trucks, and ATVs, including some two seaters
24V	6 years and up	7Ah to 12Ah or more	Larger two seat vehicles, off road toys, and faster models built for grass and inclines

Always confirm the exact voltage and amp hours on your toy's original battery before ordering. The chart above is a general reference, not a substitute for the label.

Frequently Asked Questions

Can I use a higher voltage battery to make the toy faster?

No. Increasing voltage beyond what the toy is designed for can burn out the motor and wiring and creates a safety risk for your child. To extend runtime, keep the voltage the same and choose a higher amp hour battery instead.

How do I know the voltage of my ride on toy battery?

Read the label printed on the existing battery or the sticker inside the battery compartment. It will list the voltage (6V, 12V, or 24V) and the amp hour rating. Match the voltage exactly when you order a replacement.

Is it safe to leave a smart charger connected all the time?

Yes. A smart charger stops charging once the battery is full and only reactivates when it senses the voltage drop. That makes it safe for long term maintenance, unlike a basic charger that can overcharge a full battery.

Why does my ride on toy run fine on the driveway but die on the grass?

Grass, gravel, and inclines require much more power than a flat, smooth surface. The battery drains faster under that heavier load, so shorter runtime on grass is normal and does not necessarily mean the battery is bad.

Can I replace a lead acid ride on battery with a lithium one?

In most cases it is not recommended without modifying the charging system, because lithium batteries require a different charger and charging profile. Stick with a sealed lead acid replacement that matches your toy's original battery unless the manufacturer specifically supports lithium.

How do I dispose of the old battery?

Sealed lead acid batteries are recyclable and should never go in household trash. Most battery retailers and auto parts stores accept them, and AJC Battery offers battery recycling.

Ready to get the toy rolling again? Browse the full selection of AJC ride on toy replacement batteries to find the exact fit for your child's vehicle, delivered charged and ready to install. Not sure which one you need? Call the AJC battery experts at (888) 959-0103 or email sales@ajcbattery.com.