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SigmasTek  |  SKU: BW-18415

Triumph S3, S3T Thunderbolt High Performance Replacement Battery by BatteryBrand1 11.62 lb

10% off
Sale price $75.99 USD Regular price $83.99
Shipping calculated at checkout.
High capacity 18 Amp Hour battery for extended power
Reliable 12 Volt output ensures consistent engine starts
Perfectly fits Triumph S3, S3T Thunderbolt models (1997-2002)
NB terminals provide easy installation and secure connections
Meets or exceeds OEM specifications for optimal performance
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Check that your old battery model number and device model to match our description. This makes sure they work together.


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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Volts & Amps

12 Volts | 18 Ah

Terminal Type

Nut & Bolt

Triumph S3, S3T Thunderbolt Replacement Battery (1997-2002) — BatteryBrand1

Keep your 1997-2002 Triumph S3 or S3T Thunderbolt reliably powered with this BatteryBrand1 replacement battery, engineered to deliver consistent 12 Volt performance and dependable starting power for the 1200CC engine. Designed to meet or exceed OEM expectations, this replacement battery offers straightforward installation and reliable connectivity, so your classic Thunderbolt is always ready to ride.

Key Specifications

  • Brand: BatteryBrand1
  • Compatible Models: Triumph S3, S3T Thunderbolt (1997-2002)
  • Voltage: 12 Volt
  • Capacity: 18 Amp Hours (18 Ah)
  • Terminal Type: NB (Nut/Button) terminals
  • Fitment: Designed for 1200CC engine requirements
  • Application: Replacement battery for Triumph S3 and S3T Thunderbolt

Benefits

  • Durable Construction: Built to satisfy the electrical demands of the Thunderbolt, this replacement battery provides robust, reliable starts and consistent voltage delivery for ignition and accessories.
  • Long Life: With an 18 Ah capacity tuned to the bike’s needs, this long-lasting battery helps reduce the frequency of replacements and supports prolonged storage or seasonal use.
  • High Performance: This high-performance battery produces strong cranking power for quick engine starts, even after extended periods of inactivity.
  • Easy Installation: NB terminals simplify connection and fitment, making swap-outs quick and straightforward for both DIYers and professional mechanics.
  • Versatile Use: While primarily for the Triumph S3/S3T Thunderbolt, the battery’s reliable 12V supply is suitable for small emergency systems, portable tools, and other applications that need a compact, dependable power source.

Opting for this BatteryBrand1 Triumph S3, S3T Thunderbolt replacement battery gives you a reliable, high-performance battery solution that restores OEM-level starting power and electrical stability. It’s the smart choice for riders who want dependable performance without compromise.

Order your Triumph S3, S3T Thunderbolt replacement battery by BatteryBrand1 today and get back on the road with confidence — secure a long-lasting battery and fast shipping now.

Technical Specifications

Voltage12 Volts
Amp Hours18 Ah
Terminal TypeNut & Bolt
Cold Cranking Amps (CCA)270
Length (in.)6.89
Width (in.)3.43
Height (in.)6.14
Weight (lb.)11.61

Product Highlights

  • Brand Replacement : SigmasTek
  • Manufacturer: SigmasTek
  • Product Type: Motorcycle
  • Warranty: 6 Months
  • Bulk Orders: sales@batteryweb.com

Connections & Interface

  • Polarity: "'-/+"

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