ProductContent
High Performance BRS9-BS 12v Sealed AGM PowerSport 2 Year Warranty
High Performance BRS9-BS 12v Sealed AGM PowerSport 2 Year Warranty
BRS9-BS — Sealed AGM Powersports Battery (12V · 9Ah · 135CCA) — 2-Year Warranty
Built, charged, and checked by techs. Drops in and works.
Quick Specs
- Tech: Sealed AGM (VRLA), maintenance-free
- Voltage: 12V
- Capacity (10hr): 9Ah
- CCA: 135
- Size (L×W×H): 5.87″ × 3.43″ × 4.12″ (149.1 × 87.1 × 104.6 mm)
- Terminal: Type 5
- Weight: 6.28 lb (2.84 kg)
- Replaces: YTX9-BS, ATX9-BS, BTX9-BS, ETX9-BS, DTX9-BS, WPX9-BS, CTX9-BS, WP9-BS, FTX9-BS, GTX9-BS, EXT9 C, PTR9-BS, more
- Warranty: Battery 2-Year Full Replacement — No Proration
What You’ll Notice
- Cold starts: Plates are formed right, so it spins the starter instead of clicking.
- Holds charge: Park it all week and it still fires when you’re ready to ride.
- Rough use: AGM shrugs off washboard roads, vibration, and trail hits.
- No mess: Sealed and maintenance-free. No acid, no water to add.







Our Super Charging ProcessLearn more
We don’t rush batteries out the door. We do five things so it works when you turn the key:
- Fill with 1.265 SG electrolyte to spec.
- Let it soak for full glass-mat absorption.
- Slow, high-frequency forming charge (~900 mA) to form the plates.
- Rest and verify it holds 12.6–12.8V.
- Final QC. Ships ready to install.
Pro Tip: Want it to last 8–12 years? After you park, plug in a smart maintainer. That habit keeps it topped up and ready.
See all the details → View Our Super Charging Process Here.
OEM Compatibility (Model Numbers)View
Direct replacements: YTX9-BS, ATX9-BS, BTX9-BS, ETX9-BS, DTX9-BS, WPX9-BS, CTX9-BS, WP9-BS, FTX9-BS, GTX9-BS, EXT9 C, PTR9-BS, and more.
Need help? Contact us and we’ll make sure you get the right battery for your machine — our team rides and is here to help.
Worry-Free WarrantyView
Battery: 2-Year Full Replacement — no proration, no hassle. If it fails within 2 years, we replace it.

Recommended MaintainerView
Keep this battery topped up between rides with our smart maintainer — the simple habit that helps riders see 8–12 years from an AGM.
- Model: BRS Super Charger BRS612 (6V/12V, 1000 mA)
- 3-stage charging, then maintenance; protection for short, reverse polarity, overload
- Charger Warranty: 1-Year Manufacturer’s Warranty
Details: BRS612 product page
Full Technical SpecsView
- Chemistry: Lead Acid AGM / VRLA (Pb)
- Nominal Voltage: 12V
- Capacity (Ah @10hr): 9Ah
- CCA: 135
- Dimensions: 5.87″ L × 3.43″ W × 4.12″ H (149.1 × 87.1 × 104.6 mm)
- Terminals: Type 5
- Weight: 6.28 lb (2.84 kg)
- Brand: BRS Battery Ltd. / BRS Super Battery
FAQAnswers
Do I need to charge it before installing?
No. It ships charged and ready.
Why use a maintainer?
Machines sit. A maintainer keeps it topped so it starts when you need it and maximizes lifespan.
Where’s my model number?
On the face label (e.g., YTX9-BS). This BRS9-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 works in tough weather. Keep it charged and it handles winter starts well.