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SigmasTek  |  SKU: BW-18068

STX20HL-BS 12V 19AH SLA Polaris/Yamaha WaveRunner Compatible High-Performance Battery

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

➤ Maintenance-free sealed lead-acid design for hassle-free use

➤ 12V 19AH capacity delivers reliable starting power every time

➤ Meets or exceeds OEM specs for Polaris and Yamaha WaveRunner

➤ Durable construction resists vibration and impact damage

➤ Spill-proof and leak-proof for safe, clean 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 SLA Battery for Polaris, Yamaha WaveRunner

Upgrade your Polaris or Yamaha WaveRunner with this STX20HL-BS 12V SLA replacement battery, engineered for maintenance-free operation and dependable starts in demanding powersports environments. Designed to meet or exceed OEM specifications, this long-lasting battery offers reliable starting power, rugged construction for vibration and impact resistance, and the sealed SLA design that eliminates watering. It’s an ideal solution for riders and watercraft owners seeking hassle-free, high-performance battery replacement.

Key Specifications

  • Model: STX20HL-BS
  • Compatibility: Polaris and Yamaha WaveRunner (check owner's manual for fitment)
  • Type: Sealed Lead-Acid (SLA) / Maintenance-free
  • Voltage: 12V
  • Capacity (listed): 19 AH
  • Capacity (alternate listing in product text): 18 Ah
  • Performance: Meets or exceeds OEM specifications
  • Construction: Durable for vibration and impact resistance
  • Safety: Spill-proof and leak-proof design
  • Fit Guarantee: Perfect fit guarantee (as stated)
  • Terminal Type: Nut & Bolt
  • Brand / Supplier: SigmasTek

Benefits

This STX20HL-BS replacement battery is built for the rigors of powersports. The sealed SLA construction provides strong vibration tolerance and prevents electrolyte leakage, making it a safe and practical long-lasting battery option for both personal watercraft and lightweight recreational vehicles. As a high-performance battery, it delivers consistent cranking current to ensure reliable starts and dependable operation of onboard electronics.

Maintenance-free operation eliminates regular watering and simplifies seasonal storage and prep. Durable construction resists impacts and vibration typical of boating and powersports environments, while OEM-level compatibility reduces installation hassle and downtime. Whether you run auxiliary electronics, need quick reliable starts, or want a dependable replacement battery for winter storage recovery, this unit offers a balanced combination of durability and performance.

  • Typical applications: WaveRunner starting, Polaris small craft or accessory power, recreational powersports use
  • Ideal for: OEM replacement, seasonal maintenance, performance-oriented owners

Don’t wait—order this STX20HL-BS high-performance replacement battery for your Polaris or Yamaha WaveRunner today to enjoy maintenance-free, long-lasting power and reliable starts every time.


Payment & Security

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