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SigmasTek  |  SKU: BW-4466

APC SRT8KXLT30 High Performance UPS Replacement Battery Set

Sale price $369.99 USD Regular price $540.57
Shipping calculated at checkout.

➤ Set of 32 SigmasTek SP12-5.5HR batteries (12V 5.5AH) for APC SRT8KXLT30 UPS

➤ High discharge capability ideal for UPS and emergency power applications

➤ Valve regulated spill-proof design enhances safety and convenience

➤ Low self-discharge preserves battery charge during storage

➤ Factory fresh with U.L. recognized and CE certified quality


📦🚀 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 | 5.5 Ah

Terminal Type

F2

SigmasTek Replacement Battery Set for APC SRT8KXLT30 UPS

Upgrade your APC SRT8KXLT30 with a reliable, high-performance replacement UPS battery set designed for demanding environments. This complete set of 32 SigmasTek SP12-5.5HR batteries (12 Volts, 5.5 AH) delivers consistent power, superior discharge capability, and dependable backup when you need it most. Engineered for compatibility, performance, and reliability, this replacement UPS battery set is an ideal choice to restore or extend the life of your APC SRT8KXLT30 UPS system.

Key Specifications

  • Battery count: 32 batteries per set
  • Battery model: SigmasTek SP12-5.5HR
  • Voltage: 12 Volts
  • Capacity: 5.5 AH (Amp-hours)
  • Brand: SigmasTek
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Self-discharge: Low Self-discharge
  • Durability: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year
  • Compatibility: Replacement batteries for APC SRT8KXLT30 UPS
  • Applications: Uninterruptible Power Supply (UPS) Units, Emergency Power Supply, Battery Powered Tools
  • Installation note: Must use all existing cables and hardware from original configuration to connect the new UPS batteries
  • Performance: Superior Performance for high rate discharge UPS applications

Benefits

  • Durability and reliability — Built with valve regulated spill proof construction and high vibration resistance, these batteries withstand the rigors of rack-mounted UPS environments and frequent power cycling. That construction reduces maintenance needs and increases safety during handling and installation.
  • Long life and consistent performance — Low self-discharge and factory-fresh condition ensure a long-lasting battery that holds charge well in standby and performs reliably under load. If you need a long-lasting battery replacement, this set is optimized to return your APC SRT8KXLT30 to peak readiness.
  • High-performance output — The high rate discharge design provides the short-duration, high-current performance many APC UPS configurations require. As a high-performance UPS battery solution, this set supports sustained output during critical transitions and heavy transient loads.
  • Versatile applications — Ideal for uninterruptible power supply units, emergency power supplies, and battery-powered tools, these batteries are suited to data centers, telecom closets, medical equipment environments, and any application where dependable backup power is essential.
  • Certified quality and peace of mind — U.L. Recognized and CE Certified to meet industry safety and compliance expectations. A 1 Year warranty and thorough testing by experienced staff guarantee these SigmasTek batteries meet or exceed OEM specifications.

Restore dependable backup to your APC SRT8KXLT30 today with this replacement UPS battery set. Whether you need a high-performance UPS battery for short, high-rate discharge events or a long-lasting battery for steady standby readiness, these SigmasTek batteries deliver. Order now to get superior performance, fast shipping on in-stock items, and the confidence that your critical systems are protected.


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