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SigmasTek  |  SKU: BW-4181

Belkin F6C525-SER UPS Compatible Replacement Battery

Sale price $14.91 USD Regular price $18.84
Shipping calculated at checkout.

➤ Meets or exceeds OEM SLA battery specifications for reliable performance

➤ Absorbent Glass Mat (AGM) technology for enhanced durability and safety

➤ Maintenance-free with spill-proof construction for hassle-free use

➤ U.L. Recognized and CE Certified to ensure quality and safety compliance

➤ 1 Year warranty for peace of mind and guaranteed compatibility with Belkin models


📦🚀 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

F2

Replacement Belkin F6C525-SER UPS Battery - SigmasTek 12 Volts 7.5 Ah (F2)

Designed as a direct-fit replacement UPS battery for the Belkin F6C525-SER, this high-performance UPS battery delivers dependable backup power when you need it most. Engineered to meet or exceed OEM SLA specifications, the SigmasTek replacement offers reliable performance, maintenance-free operation, and peace of mind for home and small office applications. If you rely on your Belkin F6C525-SER for critical protection of electronics, servers, or network devices, this long-lasting battery is an ideal upgrade to restore full runtime and reliability.

Key Specifications

  • Compatible Model: Belkin F6C525-SER
  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 7.5 Ah
  • Terminal Type: F2
  • Battery Type: Sealed Lead Acid (SLA) - Absorbent Glass Mat (AGM) Technology
  • Design: High Rate Discharge Design
  • Maintenance: Maintenance-Free Design with Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Typical Applications: Emergency Power Supply; Battery Powered Tools

Benefits

This replacement UPS battery is built for durability and consistent performance. AGM technology provides a robust, vibration-resistant internal structure and excellent charge acceptance, helping the battery deliver reliable power during short-duration high-current discharges common in UPS systems. The maintenance-free, spill-proof construction eliminates the need for regular upkeep, making it safe and suitable for enclosed UPS cabinets, workstations, and compact equipment closets.

As a high-performance UPS battery, it restores runtime and maintains clean power delivery to protect sensitive electronics from outages, brownouts, and surges. Its high rate discharge design supports instantaneous demand during power interruptions, while the factory-fresh condition and certifications (U.L. and CE) ensure compliance and safety. The battery’s robust build and reliable chemistry make it a long-lasting battery choice for frequent-use scenarios such as emergency power supply systems and battery-powered tools where dependable discharge characteristics are required.

Installation is straightforward: the F2 terminal type provides a secure connection within compatible Belkin F6C525-SER units. Backed by a 1 year warranty, this replacement is an economical way to extend the life of your UPS without sacrificing performance. Whether you manage a home office or a small business network, choosing a replacement UPS battery optimized for your model restores protection and minimizes downtime.

Ready to replace your Belkin F6C525-SER battery? Add this long-lasting, high-performance UPS battery to your cart now and keep your critical systems protected.



Payment & Security

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