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SigmasTek  |  SKU: BW-18370

SigmasTek STX9-BS High Performance Replacement Battery

Sale price $51.79 USD Regular price $65.84
Shipping calculated at checkout.

➤ Maintenance-free AGM design eliminates the need for acid refills

➤ Spillproof and leakproof for safe, hassle-free handling

➤ U.L. recognized and CE certified for guaranteed quality and safety

➤ Built to withstand extreme heat, freeze, and vibrations for reliable performance

➤ Superior starting power with deep cycle capacity for high-demand motorcycles


📦🚀 FAST SHIPPING: Usually ships same day if ordered before 2 PM EST

⚠️ Quick Reminder

🔹 Please ensure the original battery model number is listed in our product description and that your device model number matches for compatibility.
🔹 We only supply the batteries shown in the images. Device images are provided for reference only.

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Battery Care Guide

Battery Usage and Maintenance Guidelines 🔋

Please read the following instructions carefully before using your new battery. Proper adherence will help ensure optimal performance and extended service life.

1. Cordless Phones, PDAs, and Power Tools (NiMH, NiCd, Lithium-Ion) 📱

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Operate the device until the battery reaches approximately 20% capacity.
  • Avoid premature recharging.
  • Do not allow the battery to fully discharge during the initial cycles.

Post-Conditioning

  • Recharge the battery only when necessary.
  • These batteries are capable of approximately 500 charge cycles:
  • Once daily → ~500 days
    Twice daily → ~250 days
    Note: Even a partial recharge is considered a full cycle.

2. Sealed Lead Acid (SLA) Batteries 💡

  • No conditioning required.
  • Maintain the battery in a fully charged state; avoid complete discharge.
  • Capable of 300–400 charge cycles.
  • Expected service life: 2–3 years, depending on usage conditions.

3. Laptop Batteries (Lithium-Ion) 💻

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Charge fully, then discharge to approximately 20% capacity.
  • Avoid complete discharge, as some devices may not detect a fully drained battery.

Post-Conditioning

  • Minimize frequent plugging and unplugging.
  • Allow the battery to discharge moderately at least once per month to maintain optimal performance.
  • Occasional cycling is recommended to sustain battery health.

Professional Recommendation

Adhering to these guidelines will enhance battery longevity and ensure reliable performance.

For further assistance regarding your battery or order, our customer support team is available to provide guidance.

Delivery and Shipping

Everything You Need to Know About Shipping with BatteryWeb (USA)

We know reliable delivery matters when you need power fast. Here’s how BatteryWeb makes shipping easy across the USA:

🚚 Shipping & Delivery

Most orders ship next business day (some products like sealed lead acid may take a little longer).

Same-day shipping available if you order before 11:59 AM (delivery depends on the carrier).

We ship nationwide using FedEx, UPS, USPS, DHL, and regional ground carriers.

Shipping costs are calculated automatically at checkout based on weight, distance, and carrier.

Transit times shown are estimates only (business days, no weekends/holidays).

🌍 Shipping Restrictions

Lithium batteries cannot be shipped by USPS or air. They must go via FedEx Ground, UPS Ground, or DHL Ground.

PO Box deliveries are only available via USPS.

At this time, we do not ship lithium batteries to Puerto Rico. NiMH, NiCd, and Alkaline can be shipped.

📦 Important Notes

Double-check your shipping address! If an incorrect address is used and the order is returned, re-shipping costs are the buyer’s responsibility.

If a product is temporarily out of stock, we’ll notify you right away with the expected restock date—or issue a refund if you prefer.

💲 Currency & Pricing

All prices are shown in USD.

Orders shipped outside the USA may be subject to local taxes, customs fees, or import duties. These are the buyer’s responsibility.

⚡ At BatteryWeb, we’re committed to getting your batteries delivered quickly, safely, and affordably—so you’ll always have the power you need, when you need it.

Disclaimer

⚠️ 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.

🔹 Our products are generic replacement parts and are not affiliated with, endorsed by, or manufactured by the original equipment manufacturers (OEMs).


Volts & Amps

12 Volts | 8 AH

Terminal Type

Nut & Bolt

SigmasTek STX9-BS — Genuine Motorcycle Battery (STX9-BS)

The SigmasTek STX9-BS is a genuine, AGM maintenance-free motorcycle battery engineered for riders who demand immediate starting power and consistent performance. This genuine SigmasTek unit is a high-performance battery that removes the need to handle acidic fluids, delivering maintenance-free operation and reliable power for motorcycles and other small vehicles. If you need a drop-in replacement that balances starting strength with durable construction, the STX9-BS is an excellent choice.

Key Specifications

  • Model: SigmasTek STX9-BS
  • Design: Maintenance-Free Design
  • Safety: Spillproof and Leakproof Design
  • Certifications: U.L. Recognized and CE Certified
  • Construction: Absorbed Glass Mat (AGM) Design
  • Vent System: Valve Regulated Vent System
  • Environmental Resistance: Extreme Freeze, Heat and Vibration Resistance
  • Performance: Superior Starting Power and Deep Cycle Capacity
  • Condition: Brand New, Factory Fresh
  • Warranty: 6 Month Warranty
  • Voltage: 12 Volts
  • Capacity: 8 AH
  • Terminal Type: Nut & Bolt
  • Brand: SigmasTek (genuine)

Benefits

Built with absorbed glass mat technology, the STX9-BS provides exceptional electrical conductivity and minimal internal resistance for rapid, dependable starts. Its robust construction gives excellent vibration resistance and thermal stability for varied riding conditions, delivering a long-lasting battery life even when exposed to heat, cold, or frequent start-stop cycles. As a high-performance battery, it supports high rate discharge applications, ensuring that your motorcycle starts quickly and reliably.

The maintenance-free, spillproof design reduces upkeep and risk, making the STX9-BS especially well-suited for riders who want dependable power without ongoing maintenance. While optimized for motorcycles, this compact battery also serves well in other applications needing compact, reliable 12V power — from small emergency power packs to portable tools and backup systems requiring short bursts of power.

Each genuine SigmasTek unit is professionally tested and shipped factory-fresh, and orders for in-stock items are typically processed quickly. The included six-month warranty underlines the brand’s confidence in consistent performance and reliability.

Don’t let a weak battery keep you grounded — purchase this genuine SigmasTek STX9-BS replacement battery today and enjoy a high-performance, long-lasting battery that gets you where you need to go.


Payment & Security

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