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SigmasTek  |  SKU: BW-18072

STX20HL-BS 12V 19AH SLA Polaris SL 650 (1996-1997) High-Performance Battery

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

➤ Direct replacement for Polaris SL 650 (1996-1997) factory battery

➤ 12V 19AH SLA battery delivers reliable starting power

➤ Maintenance-free, sealed design for easy, hassle-free use

➤ Durable construction resists harsh marine conditions

➤ Meets or exceeds OEM specs for consistent performance


📦🚀 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.
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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 Replacement Battery for Polaris SL 650 (1996-1997)

Upgrade your Polaris SL 650 (1996-1997) with the STX20HL-BS replacement battery designed as a direct OEM-style swap for dependable marine performance. This maintenance-free, sealed SLA battery offers ample capacity for starting and accessories while withstanding the rigors of marine environments. Whether you’re preparing your personal watercraft for the season or replacing an aging battery, the STX20HL-BS provides consistent power and a secure left-terminal configuration for correct fitment and connection.

Key Specifications

  • Model: STX20HL-BS
  • Compatible with: Polaris SL 650 (1996-1997)
  • Brand: SigmasTek
  • Voltage: 12V (12 Volts)
  • Capacity: 19 AH (also listed as 18 Ah in product text)
  • Battery Type: SLA (Sealed Lead Acid) / Maintenance-free, sealed design
  • Terminal Type: Nut & Bolt
  • Terminal Orientation: Left Terminal configuration
  • Durability: Durable construction for marine environments
  • Performance: Meets or exceeds OEM specifications

Benefits

The STX20HL-BS is built to deliver reliable starting and accessory power for personal watercraft applications. Its sealed, maintenance-free SLA construction eliminates the need for regular watering and protects against spills—ideal for marine use where moisture and movement are constant. The robust case design helps resist corrosion and vibration, ensuring long service life in the harsh marine environment. As a high-performance battery option, the STX20HL-BS provides steady voltage under load and meets or exceeds OEM specifications for a dependable replacement solution.

Owners of Polaris SL 650 watercraft will appreciate the left terminal configuration and nut & bolt terminals for secure, vibration-resistant connections. The relatively high amp-hour capacity supports starting demands as well as accessories and onboard electronics, while the sealed construction reduces maintenance and improves safety. This replacement battery’s durability and consistent power delivery make it ideal not only for marine starting but also for small emergency backup power and other applications that require a compact, reliable energy source.

Whether you’re replacing an old battery or preparing your watercraft for active use, the STX20HL-BS offers the combination of fit, performance, and long-lasting battery life that owners expect. Its design reduces downtime and maintenance, allowing you to focus on time on the water.

Ready to get back on the water? Buy the STX20HL-BS replacement battery for your Polaris SL 650 (1996-1997) today and enjoy a high-performance, long-lasting battery built for marine reliability.


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