STX20HL-BS 12V 19Ah for Sea-Doo GTI 5866 (1996) High Performance Replacement Battery 13.45 lb
— Ready to ship immediately
Check that your old battery model number and device model to match our description. This makes sure they work together.
We ship your order same day if you buy it before 4 PM EST.
STX20HL-BS 12V 19Ah for Sea-Doo GTI 5866 (1996) High Performance Replacement Battery is backordered and will ship as soon as it is back in stock.
Let customers speak for us
Send Your Battery Photo
Expert Technician Help
Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.
POST YOUR BATTERY IMAGE
Product & Solutions Expert
✉ sales@batteryweb.com
Battery Care Tips
Battery Care Tips
🔹 Getting Started
Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.
🔹 Keep It Healthy
Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.
Delivery and Shipping
Delivery and Shipping
🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.
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.
Volts & Amps
12 Volts | 18 Ah
Terminal Type
Nut & Bolt
STX20HL-BS 12V 19AH Battery For 1996 Sea-Doo GTI 5866
Upgrade your 1996 Sea-Doo GTI 5866 with the STX20HL-BS replacement battery engineered for marine performance, reliable starts, and long-term dependability. This high-performance battery is designed to meet or exceed OEM specifications, delivering the consistent cranking power you need to get on the water quickly. Its maintenance-free, spill-proof construction and vibration resistance make it a dependable choice for personal watercraft owners who demand a long-lasting battery that stands up to harsh conditions.
Key Specifications
- Compatibility: 1996 Sea-Doo GTI 5866
- Model: STX20HL-BS
- Voltage: 12V
- Capacity (as listed): 19AH
- Alternate capacity noted in text: 12 Volts 18 Ah
- Design: Maintenance-free
- Spill-proof design
- Vibration-resistant construction
- Meets or exceeds OEM specifications
- Terminal type: Nut & Bolt
- Brand: SigmasTek
- Warranty: Not specified in product text
Benefits
- Durability: Built to resist vibration and spills common in marine environments, this high-performance battery delivers dependable service season after season.
- Long life: Maintenance-free construction and sealed design reduce corrosion and electrolyte loss, helping this unit provide extended service life compared to conventional flooded batteries.
- High performance: Engineered to meet or exceed OEM standards, the STX20HL-BS provides reliable starting power for cold starts and repeated start cycles, giving you confidence on the water.
- Ready for marine use: Spill-proof and vibration-resistant features make this replacement battery ideal for personal watercraft and other small craft where reliability is essential.
- Versatile applications: While optimized for the Sea-Doo GTI 5866, this long-lasting battery performs well in other similar high-drain, short-duration applications such as emergency start systems, portable power equipment, and recreational vehicles.
- Maintenance-free convenience: No need to top off electrolyte—just install the battery and ride with less upkeep.
Choose the STX20HL-BS replacement battery for a dependable, long-lasting battery solution that delivers the starting power and durability your 1996 Sea-Doo GTI 5866 requires. Add this high-performance battery to your cart today and enjoy reliable starts and worry-free boating all season long.
Technical Specifications
Product Highlights
- Manufacturer: SigmasTek
- Product Type: Powersport Batteries
- Warranty: 6 Months
- Bulk Orders: sales@batteryweb.com
Connections & Interface
- Polarity: "'-/+"
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.



