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SigmasTek  |  SKU: BW-15169

FIAMM FG20721 High Performance Replacement Battery

Sale price $16.99 USD Regular price $24.71
Shipping calculated at checkout.

➤ Compatible replacement for FIAMM FG20721 model

➤ Uses advanced Absorbent Glass Mat (AGM) technology

➤ Maintenance-free and spill-proof design for safety

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

➤ Comes brand new with a 1-year warranty for peace of mind


📦🚀 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 | 7.5 Ah

Terminal Type

F1

FIAMM FG20721 Replacement Battery — Compatible with FIAMM FG20721

The FIAMM FG20721 replacement battery is designed to be fully compatible with the FIAMM FG20721 model, offering dependable performance and consistent reliability for both standby and cyclic applications. This rechargeable Sealed Lead Acid (SLA) battery is engineered to meet or exceed OEM specifications so you can trust it in UPS systems, emergency lighting, alarm panels, and portable equipment. If you need a replacement battery that balances safety, performance, and ease of use, the FG20721 delivers as a high-performance battery option.

Key Specifications

  • Model: FG20721 (Replacement for FIAMM FG20721)
  • Battery Type: Rechargeable Sealed Lead Acid (SLA)
  • Technology: Absorbent Glass Mat (AGM)
  • Voltage: 12 Volts
  • Capacity: 7.5 Ah
  • Terminal Type: F1
  • Design: Maintenance-Free with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatibility Guarantee: Meets or exceeds OEM SLA battery specifications
  • Seller/SKU Reference: SigmasTek

Benefits

  • Durability: Thanks to AGM construction, this battery resists vibration and internal electrolyte movement, resulting in a robust, maintenance-free package that reduces corrosion and leakage risk.
  • Long Life: Manufactured to deliver lasting capacity over many cycles, the FG20721 replacement is intended to be a long-lasting battery option for both standby power and regular cycling needs.
  • High Performance: Provides stable voltage and reliable delivery under load—ideal for UPS backup, emergency power systems, security sensors, and small-scale power tools. As a high-performance battery, it helps maintain device uptime during outages.
  • Safety and Compliance: With U.L. recognition and CE marking, the battery meets relevant safety standards for a variety of installations, and the sealed, spill-proof design improves installation flexibility.
  • Maintenance-Free: No need to add water or perform routine electrolyte checks. The sealed SLA design lets you install and rely on consistent performance with minimal upkeep.
  • Typical Applications: Commonly used in UPS modules, emergency lighting, alarm systems, medical devices, and portable electronics that require a compact 12V 7.5Ah SLA solution.

Don’t wait until power fails—upgrade to this FIAMM FG20721 replacement battery for assured compatibility, dependable high-performance battery output, and the long-lasting battery life your devices deserve. Add to cart to secure reliable backup power today.



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