For questions, quotes, or help finding the right battery, feel free to email us at sales@batteryweb.com

New collections added! Learn more

🎉 First Order Special 🎉

First-time shoppers get 5% OFF on batteries & accessories!

WELCOME5
SigmasTek  |  SKU: BW-18634

KTM 1090CC RC8 2003 High Performance Replacement Battery

Sale price $89.46 USD Regular price $113.74
Shipping calculated at checkout.

➤ Maintenance-free AGM design eliminates the need for acid filling

➤ Spillproof and leakproof construction ensures safe handling

➤ U.L. recognized and CE certified for quality and safety standards

➤ Superior starting power with deep cycle capacity for reliable performance

➤ Resistant to extreme freeze, heat, and vibration for durability


📦🚀 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.

📸 Send Your Battery Photo / Unsure? Expert 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 IMAGE

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 | 11 Ah

Terminal Type

Nut & Bolt

KTM 1090CC RC8, 2003 Replacement Battery

Designed specifically for the KTM 1090CC RC8, 2003, this high-quality replacement battery delivers reliable starting power, exceptional performance, and maintenance-free operation. If you ride a KTM 1090CC RC8, 2003 and need a dependable, long-lasting battery that won’t require acid filling or frequent attention, this AGM maintenance-free battery is an ideal choice. The SigmasTek-built unit combines spillproof safety, superior vibration resistance, and deep cycle capacity to provide a high-performance battery solution for demanding motorcycle use.

Key Specifications

  • Compatible Model: KTM 1090CC RC8, 2003
  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 11 Ah
  • Terminal Type: Nut & Bolt
  • Design: AGM Maintenance-Free (Absorbed Glass Mat Design)
  • Maintenance: Maintenance-Free Design
  • Safety: Spillproof and Leakproof Design
  • Certifications: U.L. Recognized and CE Certified
  • Ventilation: Valve Regulated Vent System
  • 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 engineered for riders who demand both starting power and longevity. The absorbed glass mat (AGM) construction provides a sealed, spillproof system that resists leaks and eliminates the need for regular electrolyte checks—true maintenance-free convenience. With U.L. recognition and CE certification, you get a safe, reliable power source approved to industry standards.

The valve regulated vent system and rugged internal design make this battery highly resistant to extreme freeze, heat, and vibration—critical attributes for motorcycle batteries that must endure harsh road conditions. Whether you need rapid cranking power for cold starts or stable deep cycle performance for accessory use, this high-performance battery delivers consistent output and long life, helping you avoid unexpected failures on the road.

  • Durability for aggressive riding and off-road use
  • Superior starting power for quick, reliable engine starts
  • Deep cycle capacity for powering accessories and electronics
  • Sealed, spillproof construction for worry-free installation and transport
  • Common applications: motorcycle starting systems, emergency starts, and accessory power

Choose this KTM 1090CC RC8, 2003 replacement battery for a balanced combination of power, safety, and maintenance-free convenience. Buy now to upgrade to a long-lasting battery and enjoy dependable starts and consistent performance every ride.


Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.