STX20L-BS 12V 18AH High Performance Replacement Battery for Kawasaki JT900 STS STX (1997-2005)
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Battery Care Guide
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
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.
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⚡ 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
⚠️ 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
STX20L-BS 12V 18AH Battery — Kawasaki JT900 STS & STX (1997-2005)
Upgrade your Kawasaki JT900 STS or STX (1997-2005) with this STX20L-BS replacement battery engineered for dependable starting and durability. This maintenance-free, spill-proof battery delivers the consistent power you need in harsh marine environments. Designed to meet or exceed OEM specifications, it’s a solid choice for riders who want a long-lasting battery that installs easily and performs under vibration and wet conditions.
Key Specifications
- Model compatibility: Kawasaki JT900 STS and STX (1997-2005)
- Battery model: STX20L-BS
- Meets or exceeds: OEM specifications for a perfect fit
- Voltage: 12V
- Capacity: 18AH
- Design: Maintenance-free and spill-proof design
- Durability: Enhanced vibration resistance for harsh conditions
- Performance: Provides reliable starting power for personal watercraft
- Brand: SigmasTek
- Terminal type: Nut & Bolt
Benefits
- Durability: The sealed, maintenance-free construction is spill-proof and designed to resist the vibration and shock common in personal watercraft applications.
- Long life: Built to OEM standards, this replacement battery offers dependable cycles and sustained capacity for repeated starts and seasonal use.
- High performance: With 12V 18AH capacity, the STX20L-BS supplies the starting current required to crank Jet Ski engines reliably, ensuring you get underway quickly.
- Applications: Ideal for Kawasaki JT900 STS and STX models, this battery is also suitable for other small marine craft and applications that demand a compact, sealed, high-performance battery.
- Ease of use: Maintenance-free operation and spill-proof design mean less upkeep and more time on the water.
Ensure reliable starts and strong performance for your Kawasaki JT900 STS or STX by choosing this STX20L-BS replacement battery. Order now to secure a dependable, long-lasting battery that keeps your personal watercraft ready when you are.
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