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

New collections added! Learn more

🎉 First Order Special 🎉

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

WELCOME5
SigmasTek  |  SKU: BW-4476

APC SRT10KXLTUS UPS High Performance Replacement Battery Set

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

➤ Includes 32 SigmasTek SP12-5.5HR batteries (12V 5.5AH) for APC SRT10KXLTUS UPS

➤ High rate discharge for demanding UPS power needs

➤ Valve regulated, spill-proof construction for leak-free safety

➤ Low self-discharge extends battery life and readiness

➤ Factory fresh with 1-year warranty and OEM performance


📦🚀 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

SigmasTek SP12-5.5HR Replacement Battery Set for APC SRT10KXLTUS

Designed specifically to restore full runtime and dependable power to the APC SRT10KXLTUS, this replacement UPS battery set delivers consistent performance, high discharge capability, and industry-recognized safety. If your APC SRT10KXLTUS needs fresh, factory-new cells to keep servers, networking gear, or critical systems online during outages, this high-performance UPS battery kit provides a reliable, long-lasting battery solution. Please note that you will need to reuse all existing cables and hardware from your original configuration to complete installation.

Key Specifications

  • Battery model: SigmasTek SP12-5.5HR
  • Configuration: 32 batteries per set
  • Voltage: 12 Volts
  • Capacity: 5.5 AH
  • Terminal: F2
  • Design: High Rate Discharge Design
  • Construction: Valve Regulated Spill Proof Construction
  • Feature: Low Self-discharge
  • Feature: High Vibration Resistance
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Compatible UPS model: APC SRT10KXLTUS

Benefits

  • Durability: Built with valve regulated, spill-proof construction and high vibration resistance to withstand rack-mount and data center environments, these cells are a rugged replacement UPS battery option for the APC SRT10KXLTUS.
  • Long life and reliability: Low self-discharge chemistry and factory-fresh condition help ensure a long-lasting battery that holds charge well in standby and provides predictable runtime under load—exactly what you expect from a long-lasting battery for UPS applications.
  • High performance: The high rate discharge design is optimized for situations where higher power output is required over short periods, making this a high-performance UPS battery choice when rapid energy delivery is needed during outages.
  • Safety and compliance: U.L. recognition and CE certification deliver peace of mind for commercial and enterprise deployments where safety standards matter.
  • Versatile applications: Ideal for uninterruptible power supply (UPS) units like the APC SRT10KXLTUS, emergency power supply systems, and battery-powered tools requiring dependable energy bursts.
  • Tested quality: Each battery is personally tested to meet or exceed OEM specifications so your APC SRT10KXLTUS returns to peak operation quickly and affordably.

If you need assistance selecting or installing these replacement UPS battery cells for the APC SRT10KXLTUS, our experienced customer service team is available at or via email. Upgrade to this high-performance UPS battery set today to restore reliable backup power to your critical systems. Buy now to secure superior long life batteries and fast shipping.


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.