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-13139

Precor EFX 600-18 665 High-Performance Compatible Replacement Battery

Sale price $16.51 USD Regular price $19.03
Shipping calculated at checkout.

➤ Compatible with Precor EFX 600-18 665 gym equipment models

➤ Uses Absorbent Glass Mat (AGM) technology for enhanced performance

➤ Maintenance-free and spill-proof design for easy, safe use

➤ U.L. Recognized and CE Certified for quality assurance

➤ Includes a 1-year warranty for reliable, long-lasting power


📦🚀 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 | 5 AH

Terminal Type

F1

Precor EFX 600-18 665 Gym Battery (Replacement) — Compatible with EFX 600-18 665

Ensure uninterrupted performance for your Precor EFX 600-18 665 with this purpose-built replacement battery. The rechargeable Sealed Lead Acid (SLA) unit integrates Absorbent Glass Mat (AGM) technology and a maintenance-free, spill-proof construction to provide dependable power for gym equipment. If you want a high-performance battery that meets OEM expectations and offers a long-lasting battery life for frequent use, this replacement is designed to meet those needs.

Key Specifications

  • Compatible Model: Precor EFX 600-18 665
  • Type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Design: Maintenance-Free Design with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Voltage: 12 Volts
  • Capacity/Terminal: 5 AHF1
  • Meets/Exceeds: OEM SLA battery specifications
  • Suggested Applications: Upright Bikes, Recumbent Bikes, Summit Trainers, Steppers, Crosstrainers

Benefits

This replacement battery offers enhanced durability and reliable output thanks to AGM construction, which reduces internal wear and improves performance under cyclical loads. The sealed, maintenance-free design eliminates electrolyte handling and helps maintain a safe, clean environment—an important advantage in both commercial and home gym settings.

Designed as a high-performance battery for fitness equipment, it supports consistent voltage delivery for console electronics, motors, and sensors, ensuring machines operate correctly and predictably. The product’s U.L. recognition and CE certification provide added confidence in safety and conformity to international standards.

The battery’s versatility extends to multiple cardio and training devices beyond the EFX 600-18 665, including upright and recumbent bikes, summit trainers, steppers, and crosstrainers. It can also be used in smaller backup power or portable systems needing a 12 Volt source with the specified capacity/terminal configuration. For anyone seeking a long-lasting battery that reduces downtime and service complexity, this SLA AGM option is an efficient and cost-effective solution.

Ready to upgrade? Purchase this Precor EFX 600-18 665 replacement battery now and restore dependable, long-lasting power to your equipment — backed by a 1 Year Warranty for peace of mind.


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.