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SigmasTek  |  SKU: BW-5421

APC BACK-UPS VS SUVS1000 UPS High Performance Compatible Replacement Battery Set

Sale price $51.94 USD Regular price $75.31
Shipping calculated at checkout.

➤ Reliable 12 Volt, 12 Ah battery capacity

➤ Compatible with APC BACK-UPS systems

➤ Provides consistent backup power during outages

➤ Compact design for easy installation

➤ Ensures protection of electronic devices


📦🚀 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 | 12 Ah

Terminal Type

F2

SigmasTek 12 Volts 12 Ah F2 - Compatible with APC BACK-UPS

Upgrade your APC BACK-UPS with a reliable, high-quality replacement UPS battery from SigmasTek. This SigmasTek 12 Volts 12 Ah F2 unit is engineered for dependable backup power, smooth performance, and consistent recharge cycles. Whether you are protecting home office equipment, network gear, or critical electronics, this replacement UPS battery provides the predictable runtime and safe operation you need. Designed for compatibility with APC BACK-UPS systems, it offers a straightforward swap-in that restores full battery support and helps maintain uptime during power interruptions.

Key Specifications

  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 12 Ah
  • Terminal: F2
  • Compatible Brand: APC
  • Compatible UPS Model: BACK-UPS

Benefits

This high-performance UPS battery is built with long-term reliability in mind. As a replacement UPS battery for APC BACK-UPS units, it delivers consistent power delivery under load and reliable recharge behavior after outages. The SigmasTek cell chemistry and build quality emphasize durability and a long service life, making it a solid choice for anyone seeking a long-lasting battery for frequent or critical-use environments.

Durability: Robust construction and secure F2 terminal connections reduce the risk of poor contacts and premature failure. Maintenance-free design means no topping up is required—ideal for sealed UPS applications.

Long life: Designed to withstand repeated charge/discharge cycles, this SigmasTek unit helps extend the usable life of your backup system. Properly installed in an APC BACK-UPS, it delivers predictable runtime that protects your equipment during brownouts and outages.

High performance: The 12 Ah capacity provides an excellent balance of runtime and compact size for small to medium UPS systems. This high-performance UPS battery supports surge protection and regulated output from your APC unit, ensuring clean power when you need it most.

Typical applications: Use this replacement battery in home and small office UPS setups, emergency power systems for routers and modems, point-of-sale terminals, surveillance equipment, and portable tools or chargers that rely on UPS-supplied power conditioning.

Restore full backup capability to your APC BACK-UPS with this SigmasTek 12 Volts 12 Ah F2 replacement. If you need a dependable, long-lasting battery, add this high-performance UPS battery to your cart now and secure uninterrupted protection for your critical devices.

SigmasTek 12 Volts 12 Ah F2 - Compatible with APC SMART-UPS

When your APC SMART-UPS needs a reliable replacement, choose the SigmasTek 12 Volts 12 Ah F2 battery for dependable performance and quick installation. This replacement UPS battery is specified to match the power profile required by APC SMART-UPS systems, delivering steady output, rapid recharge, and consistent cycle life. Ideal for network closets, server racks, and critical electronics, this SigmasTek unit helps restore runtime and keeps your infrastructure protected during utility interruptions.

Key Specifications

  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 12 Ah
  • Terminal: F2
  • Compatible Brand: APC
  • Compatible UPS Model: SMART-UPS

Benefits

The SigmasTek 12V 12Ah F2 is a high-performance UPS battery engineered for robust, long-term operation. Its sealed, maintenance-free design reduces upkeep while providing dependable power delivery when the grid fails. As a replacement UPS battery for APC SMART-UPS devices, it offers improved reliability and the assurance of continued operation for business-critical systems.

Durability: Built to withstand frequent cycling and to provide stable chemistry under continuous standby conditions, this unit is an excellent choice for busy IT environments and commercial installations.

Long life: The combination of quality components and proper manufacturing yields a long-lasting battery that maintains capacity over many cycles, ensuring your SMART-UPS continues to protect essential gear.

High performance: With a 12 Ah rating, this battery balances compact size with meaningful runtime—supporting servers, switches, storage arrays, and sensitive electronics connected to APC SMART-UPS units.

Typical applications: Perfect for data centers’ small racks, edge servers, VoIP systems, network equipment, emergency lighting circuits, and portable power tools that depend on conditioned UPS output.

Don’t risk downtime—replace your aging battery with this SigmasTek 12 Volts 12 Ah F2 replacement UPS battery for APC SMART-UPS today. Click to purchase and restore reliable backup power to your critical systems.

SigmasTek 12 Volts 12 Ah F2 - Compatible with APC SMART-UPS

Keep mission-critical systems protected with the SigmasTek 12 Volts 12 Ah F2 replacement UPS battery for APC SMART-UPS. Engineered to provide consistent backup power and dependable recharge performance, this SigmasTek battery is an ideal choice when your SMART-UPS requires a service replacement. It delivers the stability and runtime necessary to safely shut down equipment or bridge short outages while preserving your sensitive electronics.

Key Specifications

  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 12 Ah
  • Terminal: F2
  • Compatible Brand: APC
  • Compatible UPS Model: SMART-UPS

Benefits

This high-performance UPS battery emphasizes reliability, longevity, and safe operation under UPS loads. Designed as a direct replacement UPS battery, it restores the original runtime of your APC SMART-UPS and helps maintain uptime across appliances and network devices. Its sealed, maintenance-free construction and solid terminal hardware provide dependable connections and safe service life.

Durability: Constructed for steady performance in standby and cyclic applications, the SigmasTek unit resists degradation from repeated use and performs well in rack and cabinet environments.

Long life: Expect extended usable service due to quality manufacturing and cell stability, making this a long-lasting battery option for routine UPS maintenance cycles.

High performance: The 12 Ah capacity ensures your SMART-UPS can support essential loads—servers, NAS devices, network switches, surveillance DVRs—through short-term power interruptions and safe shutdown sequences.

Typical applications: Ideal for IT rooms, remote offices, retail POS systems, small data closets, emergency lighting, and other contexts where APC SMART-UPS devices are used to protect equipment and data integrity.

Ensure continuous protection by installing this SigmasTek 12 Volts 12 Ah F2 replacement UPS battery in your APC SMART-UPS. Order now to secure a reliable, long-lasting battery solution and minimize downtime risks.

SigmasTek 12 Volts 12 Ah F2 - Compatible with APC SMART-UPS

Replace aging batteries in your APC SMART-UPS with confidence using the SigmasTek 12 Volts 12 Ah F2 replacement UPS battery. Designed for straightforward compatibility and consistent output, this SigmasTek unit restores the performance of your UPS and helps ensure uninterrupted operation for critical loads. Whether maintaining enterprise rack gear or safeguarding home office equipment, this high-performance UPS battery is a dependable replacement option.

Key Specifications

  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 12 Ah
  • Terminal: F2
  • Compatible Brand: APC
  • Compatible UPS Model: SMART-UPS

Benefits

SigmasTek designs this 12V 12Ah F2 battery to deliver lasting, dependable operation in UPS applications. As a replacement UPS battery for APC SMART-UPS units, it provides the endurance and performance required for safe shutdowns and extended runtime during outages. Its sealed construction minimizes maintenance while providing safe, spill-free operation in enclosed UPS cabinets.

Durability: Engineered for resilience, this battery holds up under repeated charge cycles and resists the wear common to lower-quality cells. The F2 terminal ensures secure electrical contact for reliable system performance.

Long life: With an emphasis on cell stability and quality control, the SigmasTek unit offers a long-lasting battery solution to reduce replacement frequency and support continuous protection strategies.

High performance: The battery supplies dependable current delivery and recharge capability, making it suitable for sensitive electronics, networking equipment, and low-to-medium power server loads connected to APC SMART-UPS.

Typical applications: Use it in small server racks, NAS systems, point-of-sale terminals, CCTV and DVR applications, emergency circuits, and anywhere APC SMART-UPS protects valuable equipment.

Restore reliable backup power to your APC SMART-UPS with this SigmasTek 12 Volts 12 Ah F2 replacement UPS battery. Add to cart now to get a high-performance, long-lasting battery that keeps your systems protected.

SigmasTek 12 Volts 12 Ah F2 - Compatible with APC SMART-UPS

Get dependable backup power for your APC SMART-UPS with the SigmasTek 12 Volts 12 Ah F2 replacement UPS battery. This unit provides the essential balance of capacity and compatibility required by SMART-UPS systems, ensuring consistent runtime and safe power transfer during outages. Perfect for IT, telecom, and critical home-office applications, it’s a practical choice when you need a long-lasting battery replacement.

Key Specifications

  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 12 Ah
  • Terminal: F2
  • Compatible Brand: APC
  • Compatible UPS Model: SMART-UPS

Benefits

This high-performance UPS battery is crafted to meet the demands of modern UPS systems. As a direct replacement UPS battery for APC SMART-UPS models, it helps preserve uptime and protect equipment from data loss, interruptions, and electrical disturbances. Its sealed, maintenance-free construction makes it easy to install and worry-free during operation.

Durability: The SigmasTek battery is built to resist vibration and repeated cycling, maintaining a stable output under typical UPS loads. The F2 terminal offers secure connections that reduce the chance of loose contacts.

Long life: A focus on consistent cell quality and controlled manufacturing results in a long-lasting battery that retains capacity over many charge/discharge cycles, minimizing the frequency of replacements.

High performance: With 12 Ah of capacity, this battery provides practical runtime for essential devices and gives your SMART-UPS the energy reserve needed for orderly shutdowns or temporary operation during power events.

Typical applications: Recommended for small data centers, server closets, network appliances, surveillance systems, POS equipment, and emergency power circuits when used with APC SMART-UPS units.

Don’t wait for a failure—replace your aging UPS battery now. Purchase the SigmasTek 12 Volts 12 Ah F2 replacement UPS battery for APC SMART-UPS today and secure long-lasting, high-performance backup power for your critical systems.


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