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SigmasTek  |  SKU: BW-19284

Harley-Davidson 1340CC Soft Tail FLST 1984-1990 High Performance Battery Replacement

Sale price $99.40 USD Regular price $126.38
Shipping calculated at checkout.

➤ Maintenance-free AGM design eliminates acid refills

➤ Spillproof and leakproof for safe, hassle-free use

➤ U.L. recognized and CE certified for quality assurance

➤ Superior starting power with deep cycle capacity

➤ Built to resist extreme heat, cold, and vibration


📦🚀 FAST SHIPPING: Usually ships same day if ordered before 2 PM EST

⚠️ Quick Reminder

🔹 Please ensure the original battery model number is listed in our product description and that your device model number matches for compatibility.
🔹 We only supply the batteries shown in the images. Device images are provided for reference only.

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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

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: 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

Harley Davidson 1340CC Soft Tail FLST, 1984-1990 Replacement Battery

Designed specifically for the Harley Davidson 1340CC Soft Tail FLST (1984-1990), this AGM maintenance-free replacement battery delivers reliable compatibility, exceptional starting performance and proven durability. Whether you’re restoring a classic Soft Tail or replacing an aging battery, this high-performance battery provides the power and dependability modern riders expect without the hassle of adding acid — truly a long-lasting battery built for motorcycle applications.

Key Specifications

  • 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 With: Harley-Davidson
  • Model: Harley Davidson 1340CC Soft Tail FLST, 1984-1990

Benefits

This replacement battery is built to perform under the tough conditions motorcycles encounter. The Absorbed Glass Mat design and valve regulated vent system combine to produce a spillproof, leakproof, and maintenance-free unit that can tolerate extreme freeze, heat and vibration — ideal for road vibration and long rides. Riders will appreciate the superior starting power that ensures quick, reliable engine starts even after long storage or in cold starts, while the deep cycle capacity supports accessories and aftermarket electronics.

As a high-performance battery for motorcycles, it’s also well suited for other high-rate discharge applications where short bursts of high power are required. Think emergency power for mobile electronics, garage tool chargers, or backup scenarios that need a compact, long-lasting battery. With U.L. recognition and CE certification, you get a safe, compliant product backed by professional testing and factory-fresh quality control.

The 6 month warranty gives added confidence, and our battery specialists test and package every unit to ensure consistent performance. Orders for in-stock items are typically shipped within 24 hours, so you can get back on the road quickly with a dependable replacement battery for your Harley Davidson 1340CC Soft Tail FLST.

Ready to upgrade? Buy your Harley Davidson 1340CC Soft Tail FLST, 1984-1990 replacement battery today and enjoy a high-performance, long-lasting battery that brings reliable starting power and peace of mind.


Payment & Security

Payment methods

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