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

🎉 First Order Special 🎉

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

WELCOME5
SigmasTek  |  SKU: BW-15394

FIAMM FGHL20502 High Capacity Replacement Battery

Sale price $11.99 USD Regular price $17.28
Shipping calculated at checkout.

➤ Compatible replacement for FIAMM FGHL20502 SLA battery model

➤ Uses advanced Absorbent Glass Mat (AGM) technology for reliable performance

➤ Maintenance-free and spill-proof design ensures safety and convenience

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

➤ Includes 1 year warranty and guaranteed best price


📦🚀 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 | 5.5 Ah

Terminal Type

F2

FIAMM FGHL20502 Replacement Battery — Compatible with FIAMM FGHL20502

The FIAMM FGHL20502 replacement battery is engineered to provide full compatibility with your FIAMM FGHL20502 model while delivering dependable performance and long-term reliability. Using Absorbent Glass Mat (AGM) technology in a sealed, maintenance-free package, this replacement battery meets or exceeds the OEM SLA specifications you expect. It’s an ideal choice when you want a high-performance battery that is safe, maintenance-free, and ready for immediate use in critical power applications.

Key Specifications

  • OEM Model: FIAMM FGHL20502
  • Replacement Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 5.5 Ah
  • Terminal Type: F2
  • Battery Chemistry: Sealed Lead Acid (SLA) with AGM Technology
  • Design: Maintenance-Free, Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty

Benefits

This replacement battery is built for lasting performance and reliability. AGM construction provides superior charge acceptance and lower internal resistance, meaning faster recharge times and steadier output under load. The sealed, maintenance-free design prevents spills and eliminates routine electrolyte maintenance, making it ideal for installations where accessibility and safety matter. As a high-performance battery, the FIAMM FGHL20502 replacement supports both standby and cyclic duties with consistent, repeatable performance.

Expect dependable, long-lasting battery life in a wide range of applications: uninterruptible power supplies (UPS), emergency lighting and exit systems, alarm and security equipment, telecommunications, medical devices, and portable tools. The F2 terminal ensures simple, secure wiring in compatible equipment, and U.L./CE recognition signals compliance with recognized safety standards for commercial and residential use.

Choosing this FIAMM FGHL20502 replacement battery means getting a cost-effective, factory-fresh unit backed by a 1 year warranty. It’s a ready-to-install solution when your device needs a reliable replacement battery that performs like the OEM.

Don’t wait—secure your FIAMM FGHL20502 replacement battery today and restore dependable power with a long-lasting, high-performance battery you can trust.



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.