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SigmasTek  |  SKU: BW-18129

STX20HL-BS 12V 19Ah Yamaha Wave Runner (1987-2009) High-Performance Replacement Battery

Sale price $75.99 USD Regular price $104.04
Shipping calculated at checkout.

➤ Direct replacement for YAMAHA Wave Runner models (1987-2009)

➤ Maintenance-free design ensures long-lasting performance

➤ Spill-proof and leak-proof for safe marine use

➤ 12V 19Ah capacity delivers reliable starting power

➤ Precisely engineered for perfect fit and easy installation


📦🚀 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 | 18 Ah

Terminal Type

Nut & Bolt

STX20HL-BS 12V 19Ah Battery — Replacement for YAMAHA Wave Runner (1987-2009) All CC

Upgrade your YAMAHA Wave Runner (1987-2009) All CC models with the STX20HL-BS 12V 19Ah replacement battery engineered for reliable starting, superior performance, and long-term dependability on the water. This high-performance battery is a sealed, maintenance-free solution specifically designed as a direct OEM replacement to ensure a precise fit, leak-free operation, and dependable power when you need it most while riding or storing your personal watercraft.

Key Specifications

  • Model: STX20HL-BS
  • Compatibility: YAMAHA Wave Runner (1987-2009) All CC models
  • Voltage: 12V
  • Capacity: 19Ah (product description lists 19Ah; some listing lines also show 18 Ah)
  • Design: Maintenance-free, sealed
  • Spill/Leak Protection: Spill-proof and leak-proof design
  • Fitment: Precisely engineered for a perfect OEM fit and hassle-free installation
  • Performance Standard: Meets or exceeds OEM specifications
  • Terminal Type: Nut & Bolt
  • Brand: SigmasTek

Benefits

This STX20HL-BS replacement battery delivers exceptional durability and long service life so your Wave Runner starts reliably season after season. Built for marine environments, its sealed, spill-proof construction prevents acid leakage and corrosion, offering the rugged durability needed for exposure to salt water, spray, and vibration. The maintenance-free design eliminates the need to check electrolyte levels or add water, making it a convenient long-lasting battery choice for owners who prefer low upkeep.

High cranking power and consistent voltage output make this a high-performance battery ideal for starting high-compression outboard engines and powering onboard accessories. Typical applications include personal watercraft starting systems, onboard emergency power for electronics, and replacement needs where OEM fit and performance are required. Its vibration-resistant construction improves reliability in choppy conditions and rough riding.

Choosing this STX20HL-BS high-performance replacement battery gives you a dependable, long-lasting battery that matches OEM fit and function while providing improved convenience and safety thanks to its sealed, maintenance-free design.

Ready to replace your Wave Runner battery with a reliable STX20HL-BS replacement battery? Add to cart now and enjoy dependable starts and worry-free marine performance.


Payment & Security

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