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SigmasTek  |  SKU: BW-1440

APC SMART-UPS VS420 High Performance Compatible Replacement Battery

Sale price $16.99 USD Regular price $23.60
Shipping calculated at checkout.

➤ Replacement 12V 7.5AH UPS battery for APC SMART-UPS VS420

➤ Maintenance-free AGM sealed design for durability

➤ UL certified to meet or exceed OEM standards

➤ Compatible with original UPS setup and hardware

➤ Ships in 1 business day with 1-year warranty


📦🚀 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

APC SMART-UPS VS420 Replacement 12V 7.5AH (F2)

Keep your APC SMART-UPS VS420 operating at full readiness with this reliable replacement UPS battery. Featuring Absorption Glass Mat (AGM) sealed battery technology, this long-lasting battery ensures safe, maintenance-free performance and dependable backup power when you need it most. UL certified and built to meet or exceed original specifications, this high-performance UPS battery is an excellent OEM-equivalent replacement for protecting essential electronics and network equipment.

Key Specifications

  • Compatible UPS Model: APC SMART-UPS VS420
  • Volts: 12 V
  • Amp Hours: 7.5 AH
  • Terminal: F2
  • Chemistry: SLA (Sealed Lead Acid)
  • AGM Technology: Absorption Glass Mat sealed battery
  • Package contains: 1 battery
  • Weight: 5.25 Lbs
  • Length: 5.95 In
  • Width: 2.56 In
  • Height: 3.7 In
  • Warranty: 1-year Warranty
  • Certification: UL (Underwriters Laboratories) certified
  • Shipping Methods: UPS Ground and USPS
  • Shipping Speed: We ship in 1 business day for all in-stock items
  • Brand / Spec Sheet: SigmasTek (as listed)
  • Guaranteed compatibility with original battery

Benefits

This replacement UPS battery provides consistent, reliable performance, making it ideal for UPS backups, emergency power, telecom gear, and small servers. The sealed AGM design delivers enhanced safety, corrosion resistance, and a low self-discharge rate for longer shelf life. As a high-performance UPS battery, it supports both standby and cyclic uses while minimizing the need for routine maintenance.

Users will appreciate the predictable power delivery and durable construction that resist common wear factors in everyday UPS service. The long-lasting battery chemistry helps reduce replacement frequency and keeps your SMART-UPS VS420 ready for power events. Typical applications include protecting network infrastructure, point-of-sale systems, home offices, and essential tools that require reliable 12V backup power.

Install the APC SMART-UPS VS420 replacement battery in the same original configuration, reusing your existing cables and hardware. Verify your current battery’s dimensions before ordering since manufacturer dimensions may change without notice. For assistance, Batterysharks.com customer support is available via email, chat, or toll-free at (800) 657-1303.

Ready to safeguard your equipment? Purchase this replacement UPS battery for the APC SMART-UPS VS420 today for quick shipping, UL certification, and a 1-year warranty — get reliable, long-lasting backup power now.


Payment & Security

Payment methods

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