STX20L-BS 12V 18AH High Performance Replacement Battery for SeaDoo GTX 4-TEZ (1994-2007)
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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.
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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 Replacement Battery for SeaDoo GTX 4-TEZ (1994-2007)
Prepare your SeaDoo GTX 4-TEZ (1994-2007) for the water with a high-performance replacement battery engineered for marine conditions. The STX20L-BS replacement battery provides the reliable starting power and sealed, maintenance-free design ideal for personal watercraft. Built to meet or exceed OEM specifications, this long-lasting battery offers vibration resistance and spill-proof construction so you can focus on enjoying the ride instead of battery maintenance.
Key Specifications
- Model: STX20L-BS
- Compatible Model: SeaDoo GTX 4-TEZ (1994-2007)
- Brand: SigmasTek
- Voltage: 12 Volts
- Capacity: 18 AH
- Terminal Type: Nut & Bolt
- Design: Maintenance-free, sealed construction
- Construction: Spill-proof operation
- Performance: Meets or exceeds OEM specifications
- Durability: Advanced electrolyte for superior vibration resistance
- Fit: Direct replacement for OEM battery
Benefits
This STX20L-BS replacement battery is engineered for the unique demands of personal watercraft. Its sealed, maintenance-free design eliminates the need for routine watering and reduces the risk of spills, making it ideal for marine environments where moisture and movement are constant. The advanced electrolyte formulation enhances vibration resistance and structural integrity, ensuring reliable starts and consistent power even in rough conditions. As a high-performance battery, it provides the dependable cranking power needed for quick and reliable engine starts and steady accessory operation on long outings.
Beyond watercraft starting, the battery’s robust construction supports demanding applications where shock and vibration are frequent—exactly what PWC owners need. The STX20L-BS qualifies as a long-lasting battery solution that minimizes downtime and maintenance, delivering value season after season. If you require a replacement battery that is both reliable and ready for the rigors of marine use, this STX20L-BS is a perfect fit for your SeaDoo GTX 4-TEZ.
Don’t let a weak battery cut your day short. Purchase this STX20L-BS long-lasting, high-performance battery now and get back on the water with confidence.
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