Lawn mower batteries are the heart of the machine, pumping power to the mower's engine and blades while you mow your lawn. Knowing your battery's main components, specifically its voltage, capacity, and CCA rating, are critical to your battery's longevity and performance. Take it from our team at Mowrator, who have been designing innovative electrical mowers for your home.
If you want to save your starting batteries and forgo buying a replacement battery anytime soon, read our article on the battery voltage and amps for your lawn mower. We've aimed to provide an easy-to-follow guide to understand battery jargon without needing a degree in engineering. From lead-acid and lithium batteries to cold cranking amps, let's dive right in.
Key Takeaways
- Lawn mower batteries can have a wide range of voltage, amperage, and CCA depending on battery size and type of mower it is used for.
- Riding lawn mowers are comparable to smaller car batteries, with high voltage and amps.
- Lead-acid, lithium-ion, and lithium iron phosphate (LiFePO4) are the most commonly used batteries today.
- Factors to consider when finding the right battery for your lawn mower are your budget, CCA rating, size chart required, and its alternator.
What is Your Lawn Mower Battery's Voltage and Amperage?
Your lawn mower's battery voltage and amperage levels may vary depending on the model and make. We've researched the 10 top recommendations for each type of lawn mower and written the range of volts, amperes, and cold cranking amps that appeared on these reputable lists.
| Lawn Mower Type | Battery Voltage (V) | Battery Amps (Ah) | Cold Cranking Amps (CCA Rating) |
|---|---|---|---|
| Push Lawn Mowers | 20V to 80V | 2.0 Ah to 6.3 Ah | N/A |
| Self-Propelled Mowers | 36V to 80V | 4.0 Ah to 9.0 Ah | 200 CCA to 415 CCA |
| Riding Mowers | 12V to 80V | 10 Ah to 60 Ah | 230 CCA to 700 CCA |
| Robot Mowers | 18V to 36V | 2.0 to 5.0 Ah | N/A |
| Remote Control Mowers | 12V to 30V | 12 Ah to 18 Ah | N/A |
What does Voltage, Amperes, and CCA mean?
Terms like voltage, amps, and CCA can be quite confusing when trying to understand your new lawn mower battery. Thankfully, you don't need a degree to know how many amps is a lawn mower battery, just read our handy guide here. Additionally, if you're interested in the latest trends, you can explore the cordless lawn mower lithium battery market, which has been growing rapidly due to the increasing demand for efficient and eco-friendly lawn care solutions.:
Voltage (V). Your lawn mower's voltage indicates how much power it can push through its circuitry. The higher the voltage, the more capable your lawn will be handling thicker grass and larger lawns. Lawn mowers generally have a voltage between 12V and 80V, depending on the size of the battery and its battery group.
Amps (Ah). The lawn mower battery Ah, or amperage, measures the flow of current from your battery. This is important to know, as the amperes will determine how efficiently your lawn mower can draw power from the battery to power its components.
CCA (Cold Cranking Amps). The CCA rating, or cold cranking amps, of your lawn mower is linked to the mower's amps. The CCA measures the battery's ability to start the engine at cold temperatures, specifically how many amps your fully charged battery can deliver at 0℉ for 30 seconds at a consistent voltage.
Can I Leave My Battery in the Lawn Mower?
If you're wondering, can I leave the battery in the lawn mower, the answer depends on the type of battery and how often you use your mower. If you're storing it for the winter, it’s best to remove and charge the battery to maintain its life.
What Happens if I Jump Start a Lawn Mower?
If your mower’s battery is dead, you may wonder, can I jump start a lawn mower? The answer is yes, but make sure to follow the correct procedure to avoid damaging your mower’s electronics or battery.
Do New Lawn Mower Batteries Need to Be Charged?
Finally, if you’ve just bought a new battery, you might ask, do new lawn mower batteries need to be charged? The short answer is yes—typically, they require a charge before first use to ensure optimal performance.
What are the Different Types of Lawn Mower Batteries?
There are three main types of lawn mower batteries; lead-acid, lithium-ion, and lithium iron phosphate. Here's everything you need to know about these battery types:
Lead-Acid Battery | Lawn Tractor Staples
Lead acid batteries have been the traditional choice for lawn mowers, but are seeing a steady decline to lithium-ion batteries instead. They are still used as an affordable option for lawn tractors and riding mowers, which require power that only a lead-acid battery can deliver. Lead-acid batteries can be separated into two categories: sealed and flooded lead-acid batteries.
Seal lead-acid batteries require minimal maintenance, while flooded batteries need regular maintenance to monitor their electrolyte levels and provide proper ventilation. The group size of your lead-acid battery will determine its voltage and amperes, often ranging from Group 24 to Group 78.
Lithium-ion Battery | Modern Mower Batteries
Many modern lawn mowers use lithium-ion batteries for their environmental sustainability, greater battery capacity, and superior performance compared to lead-acid batteries. Lithium-ion batteries can hold the same energy density as lead-acid with far smaller physical dimensions. This makes them an increasingly popular choice, not only for your riding lawn mower, but remote and remote control lawn mowers as well.
Lithium-ion also offers greater charge retention capabilities, reducing how often you have to connect your battery charger before you mow your lawn.
Lithium Iron Phosphate | Lawn and Garden Battery of the Future
While lithium-ion batteries are the most common lawn mower battery type used in the USA, lithium iron phosphate (LiFePO4) is the next step in technological advancement. Many modern electric vehicle batteries use powerful lithium iron phosphate batteries, including Tesla, Ford, and Mercedes-Benz. Some lawn mowers, like Mowrator's own S1 Remote Control Lawn Mower 4WD, also use LiFePO4 batteries to power their electrical system.
Lithium iron phosphate batteries offer superior performance even when compared to lithium-ion while being lighter, more environmentally friendly (less heavy metals), and with a greater capacity for storing energy. They also tend to last several cycles longer than lithium-ion, making them a natural choice if you're looking for the best types of batteries for your lawn mower.
How to Choose the Right Lawn Mower Battery and Battery Charger?
If you are having trouble choosing the perfect lawn mower battery and charger, here are some factors you should weigh when doing so:
- Battery type (lead-acid, lithium-ion, lithium iron phosphate).
- Voltage
- Cold Cranking Amps
- Physical Size and Terminal Position (Group U1, etc)
- Maintenance Requirements
- Budget
- Type of alternator
FAQs How many Volts and Amps is a Lawn Mower Battery?
How many Amps is a Riding Lawn Mower Battery?
The amperage of riding lawn mower batteries tend to range between 140 CCA to 300 CCA. The larger your tractor batteries, the higher the CCA rating your mower will require. If you're having trouble finding the CCA rating of your own riding mower, make sure to check the owner's manual or online.
How long do Mower Batteries Last?
Lawn mower batteries typically last between 3 and 5 years, although the type of battery will significantly impact its longevity. Lead-acid batteries, for example, will only last between 1 and 4 years, while lithium-ion batteries can last up to 10 years with proper maintenance.
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