Harley-Davidson FLS Softail (Slim S, Fat Boy S) 1803CC (2016-2017) High-Performance Replacement Battery 11.62 lb
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Harley-Davidson FLS Softail (Slim S, Fat Boy S) 1803CC (2016-2017) High-Performance Replacement Battery is backordered and will ship as soon as it is back in stock.
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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
Harley-Davidson 1803CC FLS (SOFTAIL SLIM S, FAT BOY S), 2016-2017 Replacement Battery
Designed to fit Harley-Davidson 1803CC FLS models (Softail Slim S and Fat Boy S) for 2016-2017, this replacement battery combines reliable cranking power with the convenience of AGM maintenance-free design. Built to perform under hot, cold and high-vibration conditions, it delivers the dependable starts and consistent electrical support riders expect from a high-performance battery tailored to modern motorcycles.
Key Specifications
- AGM Maintenance Free
- Maintenance-Free Design
- Spillproof and Leakproof Design
- U.L. Recognized and CE Certified
- Absorbed Glass Mat Design
- Valve Regulated Vent System
- Extreme Freeze, Heat and Vibration Resistance
- Superior Starting Power and Deep Cycle Capacity
- Brand New, Factory Fresh
- 6 Month Warranty
- Brand: SigmasTek
- Voltage: 12 Volts
- Capacity: 18 Ah
- Terminal Type: Nut & Bolt
- Compatible Brand: Harley-Davidson
Benefits
This replacement battery delivers a blend of durability, performance and low-maintenance operation. The Absorbed Glass Mat construction provides superior starting power and improved deep cycle capacity, helping the battery handle frequent starts and accessory loads common on customized Softail models. As a long-lasting battery solution, it reduces the need for frequent replacements and minimizes downtime for riders who demand consistent readiness.
Maintenance-free and spillproof, the battery is safe for installation in tight motorcycle compartments and eliminates the need to add acid or check fluid levels. The valve regulated vent system ensures safe operation and extends service life, while U.L. recognition and CE certification reflect industry-recognized safety and quality standards. The battery’s resistance to extreme freeze, heat and vibration makes it especially well suited for variable climates and aggressive riding styles.
Although optimized for motorcycles, this high-performance battery can also serve in applications that require a compact, dependable power source—such as emergency backup circuits and portable systems—when the form factor and terminals are appropriate. Professional testing and factory-fresh condition guarantee you receive a reliable unit ready to install.
Don’t wait to restore peak performance to your bike. Purchase this Harley-Davidson 1803CC FLS (SOFTAIL SLIM S, FAT BOY S), 2016-2017 replacement battery now and enjoy a maintenance-free, high-performance battery that keeps you riding. Add to cart for fast shipping and trusted quality.
Technical Specifications
Product Highlights
- Brand Replacement : Harley-Davidson
- Manufacturer: SigmasTek
- Product Type: Motorcycle
- Warranty: 6 Months
- Bulk Orders: sales@batteryweb.com
Connections & Interface
- Polarity: "'-/+"
Payment & Security
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