BS Battery Maintenance-Free Battery

A strong battery is the difference between a quick start and a long walk. The BS Battery Maintenance-Free Battery (part number 300753) is a sealed, maintenance-free battery that ships dry with its own acid pack from BS Battery.

BS Battery makes batteries for motorcycles, ATVs, UTVs, scooters and personal watercraft, and its part numbers cross-reference to common industry sizes, so you can match your old battery easily.

Why Choose BS Battery

BS Battery is a European battery maker that supplies powersports batteries in conventional, sealed AGM, high-performance and lithium types. Its batteries are designed to match OEM sizes and terminal layouts for a direct swap.

Key Features

• Maintenance free once filled
• Acid pack included for the initial fill
• Upright installation only
• Completely sealed after filling
• Superior power and extended cycle life, per BS Battery
• Doesn't need recharging while stored dry, before filling
• Suitable for cold weather
• Reduces plate sulfation and holds voltage longer

Specifications

• Part number: 300753
• Model: not stated in the listing
• Type: Maintenance-Free (Acid Pack Included)
• Cold cranking amps, capacity and dimensions: not listed; compare with your old battery

Fitment and Compatibility

This listing doesn't have fitment tags. Match the size code, dimensions and terminal layout (positive on the left or right) to your current battery. Contact our team with your year, make and model to confirm.

Understanding Battery Types

• Conventional sealed (acid pack): ships dry; you fill it with the included acid, then it's sealed and maintenance free. It stores well before filling.
• Factory-activated AGM: filled and sealed at the factory, ready to install, and can mount at an angle.
• High-performance sealed (BGZ): extra cranking power and vibration resistance for demanding machines.
• Lithium: much lighter, holds charge longer in storage and cranks strongly, but needs a lithium-compatible charger.

Filling and Activating the Battery

• Work in a ventilated area and wear eye and hand protection.
• Remove the sealing strip from the battery cells.
• Turn the acid pack upside down, line it up with the cell openings and press firmly so the acid flows in.
• Let it drain completely, then let the battery sit for the time in the instructions.
• Remove the empty pack and press the cap strip in firmly to seal the battery.
• Charge with a battery charger before the first use for the best life and performance.

Installation Steps

• Turn the ignition off and remove the seat or cover to reach the battery.
• Disconnect the negative (-) cable first, then the positive (+).
• Remove the old battery and clean the terminals and tray.
• Install the new battery in the same orientation, connecting positive (+) first and negative (-) last.
• Tighten terminals snugly and apply dielectric grease or terminal protector.
• Secure the battery hold-down and reinstall covers.

Care, Charging and Storage

A battery loses charge sitting in the garage, and short rides may not fully recharge it. Use a smart maintainer during storage, keep terminals clean and tight, and check voltage before the riding season: a fully charged 12V lead-acid battery reads about 12.7 V or higher. Recycle old batteries at a parts store or recycling center.

Signs You Need a New Battery

• Slow cranking or clicking when you press the starter
• Dim lights or electrical glitches at idle
• A battery that won't hold charge overnight
• A swollen or leaking case
• A battery more than 3 to 5 years old

Why Buy From Witchdoctors

Witchdoctors carries batteries, chargers and electrical parts for motorcycles, ATVs and UTVs, including Victory and Indian. Our team can help you find the right battery for your machine.

Related Products

• BS Battery BTX20-BS (YTX) Maintenance-Free (Acid Pack Included) Battery (300611)
• BS Battery BTX24HL-BS (YTX) Maintenance-Free (Acid Pack Included) Battery (300630)
• BS Battery BT9B-BS (YT) Maintenance-Free (Acid Pack Included) Battery (300627)

Aftermarket Motorcycle Batteries · UTV Batteries · Battery Tender · Battery Tenders & Chargers

Helpful Guides From the Witchdoctors Blog

• ATV Battery Care Tips
• Should I Get an AGM Battery or Upgrade to a Lithium Battery for My UTV?
• Polaris Tech Tip: How to Inspect Your Polaris UTV/ATV Battery and Charging System
• Signs of a Bad UTV Ground Strap: Troubleshooting Your Battery Cable Issues

Frequently Asked Questions

Is this genuine BS Battery?

Yes. Witchdoctors sells genuine BS Battery products.

How do I know it fits?

Match the size code, dimensions and terminal layout to your old battery, or contact our team with your year, make and model.

Does it come charged?

No. It ships dry with an acid pack; fill and charge it before installing.

Can I use my regular charger?

Yes, a smart charger or maintainer designed for 12V powersports batteries works best.

How long will it last?

Typically 3 to 5 years with proper charging and storage, depending on use and climate.

Where to Ride

Fresh battery, ready for the trail. Try one of these riding areas:

• Haspin Acres (Laurel, Indiana): about 100 miles of trails
• Silver Lake State Park ORV Area (Mears, Michigan): 450 acres of open sand dunes on Lake Michigan

Order Today

Add the BS Battery Maintenance-Free Battery to your cart. Not sure which battery you need? Contact our team.

Shipping

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Returns

If your order arrives and it is not right, we will we'll fix it. We promise!

Doesn't fit or just not happy with it? You can return any new, unopened, unused or unaltered item within 30 days of delivery receipt of your item. We will issue a refund to your original payment method.

See our full Return Policy for all of the pertinent details.