Kawasaki (Jet Ski) 900CC JT900 STS STX (1997-2005) High Performance Replacement Battery
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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.
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
⚠️ 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
Replacement Battery for Kawasaki (Jet Ski) 900CC JT900 STS STX, 1997-2005
Designed specifically as a compatible replacement battery for the Kawasaki (Jet Ski) 900CC JT900 STS STX, 1997-2005 models, this AGM maintenance-free unit delivers reliable starting power and proven performance on the water. Whether you need dependable cranking in the heat of summer or consistent performance in cooler months, this high-performance battery is engineered to meet the demanding, high-rate discharge requirements of Jet Skis. Spend less time worrying about maintenance and more time riding—this long-lasting battery arrives factory fresh and ready to install with no acid filling required.
Key Specifications
- Compatibility: Kawasaki (Jet Ski) 900CC JT900 STS STX, 1997-2005
- Brand: SigmasTek
- Voltage: 12 Volts
- Capacity: 18 Ah
- Terminal Type: Nut & Bolt
- Design: AGM (Absorbed Glass Mat), Maintenance-Free
- Safety: Spillproof and Leakproof Design
- Certifications: U.L. Recognized and CE Certified
- Valve System: Valve Regulated Vent System (VRLA)
- Durability: Extreme Freeze, Heat and Vibration Resistance
- Performance: Superior Starting Power and Deep Cycle Capacity
- Condition: Brand New, Factory Fresh
- Warranty: 6 Month Warranty
Benefits
This replacement battery is built for durability and long life. The AGM construction and valve regulated vent system provide a spillproof, maintenance-free experience while improving resistance to vibration—an essential advantage for marine and recreational use. You’ll gain superior starting power when you need it most, and the deep cycle capacity supports repeated high-rate discharge events that Jet Skis demand. The U.L. recognition and CE certification ensure safe operation under harsh conditions. As a high-performance battery, it withstands extreme temperatures, resisting freeze and heat damage so the unit maintains reliable output season after season.
Typical applications include personal watercraft and marine starting systems, but this versatile high-performance battery also performs well in other settings where dependable power is required: emergency power backup (UPS), portable power tools, and small equipment that needs a rugged, long-lasting battery. Its nut & bolt terminals make installation secure and simple, and being maintenance-free eliminates the need to top off acid—ideal for riders who want hassle-free upkeep.
Ready to replace your old unit? Order this replacement battery for the Kawasaki JT900 today to restore reliable starting power and enjoy a long-lasting battery solution backed by a 6 month warranty. Click to buy now and get back on the water with confidence.
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