Can-Am Maverick battery seated in exposed tray

Can-Am Maverick Battery Size: Fitment by Model and Year

Most Can-Am Mavericks use a 12-volt AGM powersport battery in the 18 Ah class with roughly 270 CCA, but the size depends on your model and year. BRP’s own spec books list both 18 Ah and 30 Ah batteries across the Maverick family. Older Maverick 1000R machines commonly take a YTX20L-style case, about 6.9 inches long by 3.4 inches wide by 6.1 inches tall. Confirm the tray and your model year before you order.

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TL;DR

  • Stock Maverick batteries are 12 V and usually 18 Ah (270 CCA) on current X3 and Maverick R models. Some Maverick packages list 30 Ah.
  • Older Maverick 1000R and Maverick 1000 units typically use a 20L-style case of about 6.9 x 3.4 x 6.1 inches. Check the label on your battery.
  • A bigger battery is possible, but it is not a universal drop-in. Tray size, terminal side, height and hold-down all matter.
  • For winches, stereos and light bars, an auxiliary battery or a high-capacity AGM kit is usually the cleaner fix than a larger starter battery.
  • Measure first, match terminal polarity, and charge with an AGM-appropriate setting.

Table of Contents

What size battery does a Can-Am Maverick use?

There is no single “Maverick battery.” The name covers the Maverick Trail, Sport, the older Maverick 1000R, the X3 and the Maverick R, and BRP specifies different electrical packages across them.

BRP’s MY26 side-by-side spec book shows that listed Maverick-family models use either a 12 V 18 Ah battery or a 12 V 30 Ah battery, depending on the model and package. BRP’s documentation for the 2024 model year also notes 12V 30 Ah batteries on certain side-by-side models, though that book is for the New Zealand market, so use your own U.S. spec sheet as the final word.

Here is how it breaks down in practice.

Model family Stock battery (per BRP or typical for the class) What to confirm
Maverick X3 MAX X ds, 2027 18 Ah, 270 CCA Spec sheet for your exact trim
Maverick R MAX X, 2027 18 Ah, 270 CCA Spec sheet for your exact trim
Other current Maverick-family models 18 Ah or 30 Ah, by package MY spec book for your year
Maverick 1000R and Maverick 1000, 2013 to 2018 era 20L-style AGM case, commonly 18 to 20 Ah Label on the installed battery

The two 2027 rows come straight from BRP: the Maverick X3 MAX X ds specification sheet lists an 18 Ah battery at 270 CCA, and the Maverick R MAX X sheet for North America lists the same.

Maverick 1000R battery size

The Maverick 1000R is the model most owners search for, and it falls into the older 20L-style group. These batteries are a compact rectangular AGM case with the terminals on top. The typical outside dimensions for this class are about 6.9 inches long, 3.4 inches wide and 6.1 inches tall, with capacities from around 18 Ah to 20 Ah and 270 to 310 CCA depending on the maker.

Two cautions apply:

  • Dimensions vary by a fraction of an inch between brands. A case that is a quarter inch too tall can foul the cover or the hold-down.
  • “20L” describes the case layout, not the exact capacity. Two batteries in the same case can differ in Ah and CCA, and the terminal side (the “L” in the code) must match your cables.

Pull your current battery and read the label. Write down the case code, the Ah rating, the CCA and which side the positive terminal sits on. That one minute saves a return.

Dimensions, amp-hours and cold-cranking amps: what the numbers mean

Amp-hours (Ah) tell you how long the battery can feed accessories with the engine off. An 18 Ah battery can deliver about 1 amp for 18 hours in a lab rating, but real use is far lower under heavy loads.

Cold-cranking amps (CCA) describe starting power at low temperature. Stock Maverick spec sheets list 270 CCA for the 18 Ah unit. If you ride in cold weather or run a high-compression engine, a battery with equal or higher CCA in the same case is a sensible choice.

Battery fitment, capacity and starting power explained

Dimensions decide whether the battery fits at all. Measure the tray length, width and the height under the cover or seat base, then compare with the battery’s listed outer dimensions, including terminal posts.

Can you put a bigger battery in a Maverick?

Yes, but not as a swap you can assume. BRP documents an auxiliary battery kit for the Maverick X3 that adds a second 18 Ah battery behind the passenger seat, using the stock location arrangement. It requires an additional battery (part 410301203) plus hardware. Larger aftermarket kits exist too, including a 35 Ah, 438 CCA setup with its own dedicated bracket.

Before you commit to any larger battery, check:

  1. Exact model and year. Trays differ between generations.
  2. Tray dimensions. Length, width and height, with the cover on.
  3. Terminal polarity and height. Reversed terminals can leave cables too short or touching metal.
  4. Hold-down or bracket. A battery that can move will fail early and can short.
  5. Cable reach. Do not stretch cables to make a wider battery work.
  6. Charging compatibility. Your charger must suit the chemistry you pick.
  7. Load isolation. Does the kit separate accessory loads from the starting battery?

Owners who have tried squeezing a larger case into the stock spot report mixed results. One forum poster fitted a bigger AGM in an X3’s stock location but called it a very tight fit that needed a plastic nub trimmed. Treat that as an anecdote, not a plan. Cutting plastic to make something fit is a sign to choose a different battery or an auxiliary setup.

For a deeper look at the trade-offs, our guide to UTV battery upgrade considerations walks through capacity, cranking power and accessory loads.

When the stock battery is not enough

The usual trigger is accessories. A winch, a stereo, light bars, a compressor and heated gear all draw current while the engine may be idling or off. A small starter battery drains quickly under that kind of load, and repeated deep drains shorten its life.

You have three sensible routes:

  • Keep the stock size and manage loads. Fine if you only add a few lights.
  • Add an auxiliary battery. Best when you run a stereo or winch heavily. The starter battery stays fresh for starting.
  • Move to a higher-capacity battery kit. Works if the kit includes the right bracket and cables for your model.

If you are choosing among options, How to Pick a UTV Battery That Won’t Quit lays out how to weigh capacity, CCA and build quality.

Perspective

We build AGM and lithium (LiFePO4) batteries for powersports, and the question we hear most about Mavericks is not “which battery is biggest?” It is “which battery will fit and still start the machine in the cold?”

Our answer starts with the tray. A battery that fits the stock location, with the right terminal side and a secure hold-down, will outlast a larger one that is squeezed in. Our AGM batteries are designed with high lead content and come pre-charged and ready to install, so you can fit them and ride. Our lithium powersport batteries include a built-in Battery Management System, which is designed to protect the cells during charge and discharge.

We stand behind that with a 4-year warranty on our AGM batteries. If you are unsure between sizes, our team will help you match a battery to your exact model and year before you order.

Donald

AGM or lithium for a Maverick?

Both chemistries suit powersports, and the choice depends on how you ride and what you carry.

AGM is the familiar choice. It is sealed, spill-resistant and handles vibration well, which suits rough trails. Our AGM line is built with high lead content for durability in extreme conditions, and it is the straightforward match when you want to replace the stock battery like for like. The AGM battery replacement guide for UTVs covers the swap step by step.

Lithium (LiFePO4) suits riders who want lower weight and who have a charger that supports it. Our lithium batteries include a built-in Battery Management System. If you choose lithium, make sure your charging setup is compatible with it and that the case dimensions match your tray.

AGM or lithium for a Maverick?

For a broader comparison of sealed and flooded designs, see our field-use comparison of AGM and flooded batteries.

How to confirm your Maverick’s battery size in five steps

  1. Find your model and year. Check the VIN plate and your owner’s documents.
  2. Open the spec book for that year. BRP publishes spec sheets for each model year on its site. Look for the battery line.
  3. Read the installed battery. Note the case code, Ah, CCA and positive terminal side.
  4. Measure the tray. Include height under the cover or seat base.
  5. Compare before ordering. Match case size, terminal side and capacity. If the numbers conflict, trust the tray measurement over a listing.

Also inspect the vent tube if your battery has one and keep it free of kinks. Our AGM venting rules explain how to route it.

Charging and safety after you install

A new battery is only as good as the way you charge it. BRP’s operator’s guides warn that charging produces hydrogen and oxygen gases that are explosive if ignited, and that the charger should be switched off before you disconnect the leads. In practice:

  • Charge in a ventilated area, away from sparks and open flame.
  • Turn the charger off before connecting or disconnecting clamps.
  • Use a charger with an AGM or lithium mode that matches your battery.
  • Do not charge a frozen or visibly swollen battery. Replace it.

For settings, our AGM charger settings guide gives a practical workshop routine. To check whether a weak battery is the culprit before you buy, follow the steps for testing a battery with a multimeter. And once the new battery is in, our maintenance guide helps you get more seasons from it.

Find the right battery for your Maverick

If you want a replacement that matches your tray and starting needs, start with our AGM powersport batteries. Our site also has a vehicle-specific battery finder, so you can enter your model and year and see what fits. Each battery ships pre-charged and installation-ready, and our AGM line carries a 4-year warranty.

Bansheebatteries

If you are weighing a lithium option or an auxiliary setup, browse the full range on the Banshee Batteries home page or contact our team and tell us your model, year and accessories. We will help you pick a size that fits.

FAQ

What is the battery size for a Can-Am Maverick 1000R?

The Maverick 1000R generally uses a 20L-style AGM case, about 6.9 x 3.4 x 6.1 inches, with capacities near 18 to 20 Ah. Dimensions and terminal side vary slightly by brand. Read your installed battery’s label and measure the tray before you order.

Do all Can-Am Mavericks use the same battery?

No. BRP’s MY26 spec book lists Maverick-family models with either 12 V 18 Ah or 12 V 30 Ah batteries. The right one depends on your model, year and package. Check the spec sheet for your exact machine.

Can I use a car battery in a Maverick?

It is not a good fit. Car batteries are far larger than a Maverick’s tray, and their terminals, mounting and venting are different. Use a powersport battery designed for the vehicle, or an auxiliary kit if you need more capacity.

Can I add a second battery to my Maverick?

Often, yes. BRP documents an auxiliary battery kit for the Maverick X3 that adds a second 18 Ah battery in the stock-location arrangement. Check your model and year, and make sure the kit isolates accessory loads from the starting battery.

Should I choose AGM or lithium?

AGM is the like-for-like replacement and handles rough use well. Lithium (LiFePO4) suits riders who want less weight and have a compatible charger. Either way, match the case size and terminal side to your tray.

Sources

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