STX20L-BS Harley-Davidson FLSTC Heritage Classic (1991-2014) High-Performance 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
STX20L-BS for Harley-Davidson FLSTC Heritage Classic (1991-2014) Replacement Battery
Upgrade your Harley-Davidson FLSTC Heritage Classic (1991-2014) with this STX20L-BS replacement battery engineered to meet or exceed OEM expectations. This sealed AGM, maintenance-free unit provides the reliable starting power and consistent voltage delivery riders demand. As a high-performance battery with spill-proof construction and durable design, it’s built to handle cold starts and the vibration of highway cruising while offering the convenience of maintenance-free operation.
Key Specifications
- Compatibility: Harley-Davidson FLSTC Heritage Classic (1991-2014)
- Model: STX20L-BS
- Design: Maintenance-free, sealed AGM design
- Safety: Spill-proof construction (eliminates risk of leaks and corrosion)
- Performance: Reliable starting power even in cold weather
- Fit: Direct replacement for OEM battery; guaranteed to fit
- Construction: Durable construction to withstand motorcycle rigors
- Specification: Meets or exceeds OEM specifications for voltage, capacity, and cranking amps
- Brand: SigmasTek
- Voltage: 12 Volts
- Capacity: 18 Ah
- Terminal Type: Nut & Bolt
Benefits
This STX20L-BS replacement battery delivers exceptional durability and long life due to its sealed AGM technology. The maintenance-free design means no topping up and a reduced risk of corrosion and acid spills, making it a safer, cleaner choice for motorcycle owners. With enhanced vibration resistance and robust construction, this battery stands up to the rigors of daily riding, long-distance cruising, and frequent stop-and-go starts.
As a high-performance battery, it provides the cranking amps necessary for dependable starting in cold and variable conditions, ensuring you’re ready to ride whenever you need. Its leakproof and sealed design is ideal for motorcycle applications and also suitable for other compact, high-drain uses. Beyond bikes, the reliability and maintenance-free nature make it a good option for emergency power systems, small UPS backups, and portable tools that require dependable 12V sources. Whether you need starting power for your Harley or a long-lasting battery for backup applications, this STX20L-BS unit offers consistent performance.
Professionally packaged and engineered to meet OEM specs, this battery combines fitment confidence with performance you can trust. It’s an excellent replacement battery choice for riders who want hassle-free ownership and dependable starts every season.
Don’t wait—upgrade your Harley-Davidson FLSTC Heritage Classic (1991-2014) with the STX20L-BS high-performance replacement battery today. Purchase now to secure reliable starts and fast shipping.
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