BRS4L-BS 30 Day Warranty Battery & Smart Charger / Maintainer Combo Bundle Kit

 

BRS4L-BS — Sealed AGM Battery + Smart Charger Combo

Built, charged, and checked by techs. Drops in and works.

FREE Fast Shipping Arrives Fully Charged 30-Day Full Replacement No-Hassle Warranty

Quick Specs

• Tech: Sealed AGM (VRLA), maintenance-free
• Voltage: 12V
• Capacity (10hr): 3.5Ah
• CCA: 60
• Size (L×W×H): 4.43″ × 2.75″ × 3.37″ (112.5 × 69.9 × 85.6 mm)
• Terminal: Type 5
• Weight: 3.17 lb (1.43 kg)
• Replaces: YTX4L-BS, WPX4L-BS, CTX4L-BS, CYTX4L-BS, GTX4L-BS, YTX4LBSFP, M62X4B, ES4LBS, PTX4L-BS, more
• Includes: BRS Super Charger BRS612 + Eyelet Plug Adapter
• Warranty (this listing): Battery 30-Day Full Replacement — No Proration

What You’ll Notice

• Starts when it’s cold. Charged right and plate-formed the right way, so it spins the starter instead of sagging.
• Holds a charge in storage. Park it, plug the maintainer, and it’s ready next weekend or next season.
• Handles rough use. AGM design stands up to vibration, washboard roads, and trail chatter.
• No acid, no mess. Sealed and maintenance-free. Install and go.

How We Prep the BatteryLearn more

We don’t rush batteries out the door. We do five things so it works when you hit the button:

1. Fill with 1.265 SG electrolyte to spec.
2. Let it soak so the glass mat pulls in the electrolyte.
3. Slow, high-frequency charge (~900 mA) to form the plates.
4. Let it rest and verify it holds 12.6–12.8V.
5. Final check. Then it ships ready to install.

Pro Tip: Want it to last 8–12 years? After you park, plug in the included maintainer. That habit keeps it topped up and ready.

Want the full photo walkthrough? See our deep dive.

Built for Real-World RidingDetails

• Cold starts: Charged right, so it cranks in bad weather instead of clicking.
• Winches & add-ons: Stable voltage for plows, GPS, LED bars, and accessory draws.
• Vibration: AGM build handles washboard roads and trail hits without spilling or leaking.
• Mounting: Mount upright or on its side. Don’t mount upside down.
• Storage: Park it, plug in the maintainer, and it’s ready when you are.
• No-nonsense upkeep: Sealed. No acid. No water to add.

OEM Compatibility & FitmentView

Direct replacements: YTX4L-BS, WPX4L-BS, CTX4L-BS, CYTX4L-BS, GTX4L-BS, YTX4LBSFP, M62X4B, ES4LBS, PTX4L-BS, and more.

Install tip: Tight spots? A threaded post or captive-nut shim makes the negative lead easier to secure.

Worry-Free WarrantyView

Battery: 30-Day Full Replacement — no proration, no hassle. If it fails in the first 30 days, we replace it.

Charger: 1-Year Manufacturer’s Warranty on the BRS612 maintainer.

Included: BRS Super Charger BRS612Specs

• Type: Automatic smart charger / maintainer / rejuvenator
• Input: 100–120 VAC, 50/60 Hz · Output: 1000 mA @ 6V/12V
• Size: 105 × 68 × 35 mm · Weight: 0.5 kg
• Approvals: UL/cUL, FCC, CEC
• Includes: Eyelet Plug Adapter for easy under-seat access
• 3-stage charging, then maintenance mode — won’t overcharge
• Protection: short-circuit, reverse polarity, overload
• Charger Warranty: 1-Year Manufacturer’s Warranty

More about the charger: BRS612 product page

Full Technical SpecsView

• Chemistry: Lead Acid AGM / VRLA (Pb)
• Nominal Voltage: 12V
• Capacity (Ah @10hr): 3.5Ah
• CCA: 60
• Dimensions: 4.43″ L × 2.75″ W × 3.37″ H (112.5 × 69.9 × 85.6 mm)
• Terminals: Type 5
• Weight: 3.17 lb (1.43 kg)
• Brand: BRS Battery Ltd. / BRS Super Battery
• Storage tip: Keep it on the included maintainer if the machine sits.

🎁 Free Digital Bonuses (Included)View

Maintenance Mistakes Every Rider Should Avoid

Simple habits that protect performance and battery life.

Maintenance Checklist + Essential Gear

One-page pre-ride & storage checklist, plus must-carry tools.

Powersports Riding Techniques

Better control, safer rides, smoother days on any terrain.

FAQAnswers

Do I need to charge it before installing?

No. It ships charged and ready.

Why include a maintainer?

Machines sit. The maintainer keeps it topped up so it starts when you need it.

Where’s my model number?

On the face label (e.g., YTX4L-BS). This BRS4L-BS replaces that size.

How is this different from a cheap battery?

We soak, form, and test each one. No acid splash-and-dash. That’s why it cranks harder and holds charge longer.

How cold will it work?

AGM will run in tough weather. Keep it charged and it handles winter starts well.