The best battery for a side‑by‑side is a maintenance‑free AGM (gel‑like) 12V battery with adequate CCA for cold starting and the right size for your model. This guide highlights five solid AGM options, explains who they’re best for, and shows practical trade‑offs. Ideal buyers include weekend riders needing reliable starting power, riders with frequent storage, and those seeking easy installs without ongoing maintenance.
Summary table of selected products:
- Weize YTX14 BS — Best for versatile ATVs and snowmobiles needing sealed, maintenance‑free AGM power.
- Energizer TX14AH AGM — Best for reliability right out of the box with strong cold starting power.
- Upstart Battery YTX14‑BS — Best value replacement for multiple powersports platforms.
- Mighty Max Battery YTX14‑BS — Best for those who want solid performance with standard AGM design.
- ExpertPower YTX12‑BS — Best for rugged off‑road use and vibration resistance.
Weize YTX14 BS ATV Battery High Performance
The Weize YTX14‑BS is a sealed AGM battery with 12V and 200 CCA. It lists dimensions, charging current, and a stack of certifications (UL, CE, ISO 9001). Best for ATVs, motorcycles, snowmobiles, and personal watercraft that require maintenance‑free power. It is ready to install, with left positive and right negative terminals clearly identified. Caution: verify fitment for your specific model; some side‑by‑sides may require a slightly different case size.
Who this is best for: riders who want a plug‑and‑play AGM option with solid cold‑start performance and broad compatibility across multiple powersports platforms.
Energizer TX14AH AGM ATV and UTV Battery
The Energizer TX14AH AGM battery delivers 210 CCA and 12 Ah, designed for high‑performance engines. It is permanently sealed and maintenance free, with ready‑to‑install convenience. Dimensions are 5-1/4″ x 3-9/16″ x 6-7/16″. This option is better for riders who value strong cold‑start power and a battery that ships ready to go without topping off.
Best for: riders needing a reliable, high‑CCA replacement that performs well in cold starts and requires minimal maintenance.
Caution: ensure your mounting space accommodates the taller height of this model in some UTVs or ATVs.
YTX14-BS Battery – Upstart Battery
The Upstart YTX14‑BS is a 12V 12Ah AGM battery compatible with common motorcycle and ATV models. It is factory activated and maintenance free, designed to install quickly with a sealed, leak‑free design. It targets ATVs, UTVs, motorcycles, personal watercraft, and jet skis. It can replace several YTX‑family batteries, offering broad compatibility.
Best for: shoppers seeking a budget‑friendly replacement that covers multiple popular models with straightforward installation.
Caution: check exact dimensions for your mounting tray, as a few models require tighter tolerances.
Mighty Max Battery YTX14‑BS
The Mighty Max YTX14‑BS provides 12V and 12 Ah capacity with 200 CCA in an AGM design. It measures about 6.00″ x 3.44″ x 5.75″. This model is straightforward, with polarity clearly marked. It is a standard AGM battery option widely used for motorcycles, ATVs, snowmobiles, and other powersport needs. It’s a solid default you can count on for a broad array of powersports applications.
Best for: riders who want a familiar, widely compatible AGM battery with dependable performance and simple installation.
Caution: packaging notes mention that some listings exclude mounting hardware; you may need screws or brackets separately.
ExpertPower YTX12‑BS AGM Battery
The ExpertPower YTX12‑BS is a 12V 12Ah AGM battery designed for motorcycles, ATVs, UTVs, and other powersports. It emphasizes a sealed design that minimizes maintenance and handling mess. It is built for rugged use, with vibration resistance and robust casing to maintain performance in off‑road riding and bumpy conditions.
Best for: riders needing a durable, maintenance‑free battery with solid vibration resistance for off‑road adventures.
Caution: some models may differ slightly in terminal orientation; verify polarity before installation.
Buying Guide: How to Choose The Right Side‑By‑Side Battery
- Voltage and capacity: All options here are 12V. Aim for 12 Ah or higher for longer cranking power and faster recharge after use.
- Cold Cranking Amps (CCA): Higher CCA improves starting in cold weather. Look for 200 CCA or more for reliable starts in winter climates.
- Maintenance and design: AGM batteries are maintenance‑free and sealed, reducing spill risks and corrosion. This is preferable for enclosed or hard‑to‑ventilate compartments.
- Fit and terminals: Check dimensions and terminal layout (left positive vs right negative) to match your side‑by‑side’s battery tray and cable routing.
- Durability: Off‑road use benefits from robust casings and vibration resistance. Consider models marketed for powersports or with rugged construction.
- Brand and availability: Replacements should be easy to source locally or online, with compatibility across common makes and models.
Frequently Asked Questions
- What is an AGM battery and why choose it for a side by side? AGM stands for absorbed glass mat. It is sealed, maintenance‑free, and resistant to spills and vibration, making it suitable for rugged powersports use.
- Is 12 Ah enough for most side‑by‑sides? For many applications, yes, but larger engines or extended idle periods may benefit from higher capacity. Check your vehicle’s starting power needs and electrical accessories.
- How important is CCA for starting in cold weather? Higher CCA helps start engines in cold conditions. If you ride in cold climates, prioritize batteries with 200 CCA or more.
- Do I need to replace the entire harness or mounting hardware? Usually no, but confirm that the new battery’s size and terminal layout fit your existing tray and wiring. Some listings omit mounting screws.
- Can I use any 12V AGM battery in my side by side? Not always. Verify dimensions, terminal orientation, and fitment in your specific model’s user manual or OEM battery tray.
- How long does an AGM battery last with typical use? AGM batteries generally offer years of service under normal use, with better longevity under proper storage and charging practices.